Data Preview 2

Object

Descriptions of static astronomical objects (or the static aspects of variable and slowly-moving objects) detected and measured on coadds.

Column Name Data Type Unit Description UCD Order Principal
tract long Skymap tract ID 1
patch long Skymap patch ID 1
z_ra double deg Position in right ascension, measured on z-band. pos.eq.ra
z_dec double deg Position in declination, measured on z-band. pos.eq.dec
z_raErr float deg Error in right ascension, measured on z-band. stat.error;pos.eq.ra
z_decErr float deg Error in declination, measured on z-band. stat.error;pos.eq.dec
z_ra_dec_Cov float deg**2 Covariance between right ascension and declination, measured on z-band. stat.covariance;pos.eq.ra;pos.eq.dec
z_psfFlux float nJy Flux derived from using the PSF model as a weight function. Forced on z-band.
z_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Forced on z-band.
z_psfMag float mag AB magnitude of the z-band psfFlux. 1
z_psfMagErr float mag Uncertainty in magnitudes of the z-band psfFlux. 1
z_free_psfFlux float nJy Flux derived from using the PSF model as a weight function. Measured on z-band.
z_free_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Measured on z-band.
z_free_psfFlux_flag boolean Flag set if the unforced PSF flux failed in this band for any reason. Measured on z-band.
z_gaapPsfFlux float nJy GAaP Flux with PSF aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on z-band.
z_gaapPsfFluxErr float nJy GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on z-band.
z_gaap0p7Flux float nJy GAaP Flux with 0.7 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on z-band.
z_gaap0p7FluxErr float nJy GAaP Flux uncertainty with 0.7 arcsec aperture after multiplying the seeing by 1.15. Forced on z-band.
z_gaap1p0Flux float nJy GAaP Flux with 1.0 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on z-band.
z_gaap1p0FluxErr float nJy GAaP Flux uncertainty with 1.0 arcsec aperture after multiplying the seeing by 1.15. Forced on z-band.
z_ixx float pixel**2 Gaussian-weighted adaptive moments. Measured on z-band.
z_iyy float pixel**2 Gaussian-weighted adaptive moments. Measured on z-band.
z_ixy float pixel**2 Gaussian-weighted adaptive moments. Measured on z-band.
z_i_flag boolean General failure flag, set if anything went wrong. Measured on z-band.
z_ixxPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on z-band.
z_iyyPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on z-band.
z_ixyPSF float pixel**2 Gaussian-weighted adaptive moments. Measured on z-band.
z_iPSF_flag boolean Flag set for any failure in the PSF model moments. Measured on z-band.
z_kronRad float Kron radius (sqrt(a*b)). Measured on z-band.
z_kronFlux float nJy Flux measured within an elliptical aperture 2.5 times the Kron radius. Measured on z-band.
z_kronFluxErr float nJy Flux uncertainty from Kron Flux algorithm. Measured on z-band.
z_ap03Flux float nJy Flux within 3.0-pixel aperture. Forced on z-band.
z_ap03FluxErr float nJy Flux uncertainty within 3.0-pixel aperture. Forced on z-band.
z_ap03Flux_flag boolean Flag set for any failure with the 3.0-pixel aperture flux. Forced on z-band.
z_ap06Flux float nJy Flux within 6.0-pixel aperture. Forced on z-band.
z_ap06FluxErr float nJy Flux uncertainty within 6.0-pixel aperture. Forced on z-band.
z_ap06Flux_flag boolean Flag set for any failure with the 6.0-pixel aperture flux. Forced on z-band.
z_ap09Flux float nJy Flux within 9.0-pixel aperture. Forced on z-band.
z_ap09FluxErr float nJy Flux uncertainty within 9.0-pixel aperture. Forced on z-band.
z_ap09Flux_flag boolean Flag set for any failure with the 9.0-pixel aperture flux. Forced on z-band.
z_ap12Flux float nJy Flux within 12.0-pixel aperture. Forced on z-band.
z_ap12FluxErr float nJy Flux uncertainty within 12.0-pixel aperture. Forced on z-band.
z_ap12Flux_flag boolean Flag set for any failure with the 12.0-pixel aperture flux. Forced on z-band.
z_ap17Flux float nJy Flux within 17.0-pixel aperture. Forced on z-band.
z_ap17FluxErr float nJy Flux uncertainty within 17.0-pixel aperture. Forced on z-band.
z_ap17Flux_flag boolean Flag set for any failure with the 17.0-pixel aperture flux. Forced on z-band.
z_ap25Flux float nJy Flux within 25.0-pixel aperture. Forced on z-band.
z_ap25FluxErr float nJy Flux uncertainty within 25.0-pixel aperture. Forced on z-band.
z_ap25Flux_flag boolean Flag set for any failure with the 25.0-pixel aperture flux. Forced on z-band.
z_ap35Flux float nJy Flux within 35.0-pixel aperture. Forced on z-band.
z_ap35FluxErr float nJy Flux uncertainty within 35.0-pixel aperture. Forced on z-band.
z_ap35Flux_flag boolean Flag set for any failure with the 35.0-pixel aperture flux. Forced on z-band.
z_ap50Flux float nJy Flux within 50.0-pixel aperture. Forced on z-band.
z_ap50FluxErr float nJy Flux uncertainty within 50.0-pixel aperture. Forced on z-band.
z_ap50Flux_flag boolean Flag set for any failure with the 50.0-pixel aperture flux. Forced on z-band.
z_ap70Flux float nJy Flux within 70.0-pixel aperture. Forced on z-band.
z_ap70FluxErr float nJy Flux uncertainty within 70.0-pixel aperture. Forced on z-band.
z_ap70Flux_flag boolean Flag set for any failure with the 70.0-pixel aperture flux. Forced on z-band.
z_extendedness float Flux-ratio measure of whether an object is point-like (0) or extended (1). Measured on z-band.
z_sizeExtendedness float Moments-based measure of whether an object is point-like (0) or extended (1). Measured on z-band.
z_model_extendedness float Model flux- and size-based estimate of whether the object is extended (resolved) or not, from 0 (compact) to 1 (extended). Uses z-band fluxes.
z_blendedness float Measure of how much the flux is affected by neighbors, (1 - child_flux/parent_flux). Operates on the absolute value of the pixels to try to obtain a de-noised value. See section 4.9.11 of Bosch et al. 2018, PASJ, 70, S5 for details. Measured on z-band.
z_cModelFlux float nJy Flux from the final CModel fit. Forced on z-band.
z_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Forced on z-band.
z_cModelMag float mag AB magnitude of cModelFlux. Forced on z-band. 1
z_cModelMagErr float mag Uncertainty in magnitudes on cModelFlux. Forced on z-band. 1
z_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Forced on z-band.
z_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Forced on z-band.
z_free_cModelFlux float nJy Flux from the final CModel fit. Measured on z-band.
z_free_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Measured on z-band.
z_free_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Measured on z-band.
z_free_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Measured on z-band.
z_free_cModelFlux_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Measured on z-band.
z_free_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on z-band.
z_free_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on z-band.
z_free_cModel_expFlux float nJy Flux from the exponential fit. Measured on z-band.
z_free_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on z-band.
z_cModel_dev_reff_major float arcsec Half-light ellipse of the de Vaucouleurs fit (major axis). Measured on z-band.
z_cModel_dev_reff_minor float arcsec Half-light ellipse of the de Vaucouleurs fit (minor axis). Measured on z-band.
z_cModel_dev_theta float Position angle of the de Vaucouleurs fit ellipse. Measured on z-band.
z_cModel_exp_reff_major float arcsec Half-light ellipse of the exponential fit (major axis). Measured on z-band.
z_cModel_exp_reff_minor float arcsec Half-light ellipse of the exponential fit (minor axis). Measured on z-band.
z_cModel_exp_theta float Position angle of the exponential fit ellipse. Measured on z-band.
z_cModel_chi2 float -ln(likelihood) (chi^2) in CModel fit. Measured on z-band.
z_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on z-band.
z_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on z-band.
z_cModel_expFlux float nJy Flux from the exponential fit. Measured on z-band.
z_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on z-band.
z_moments_g1 float Moments-based G1 shear ellipticity parameter (z-band)
z_moments_g2 float Moments-based G2 shear ellipticity parameter (z-band)
z_moments_trace float arcsec Moments-based trace radius (z-band)
z_moments_flag boolean Failure flag for moments (z-band)
z_moments_psf_g1 float Moments-based G1 ellipticity of of the PSF (z-band)
z_moments_psf_g2 float Moments-based G2 ellipticity of of the PSF (z-band)
z_moments_psf_trace float arcsec Moments-based trace radius of the PSF (z-band)
z_moments_psf_flag boolean Failure flag for PSF moments (z-band)
z_moments_psf_debiased_g1 float Moments-based G1 ellipticity of the PSF, debiased (z-band)
z_moments_psf_debiased_g2 float Moments-based G2 ellipticity of the PSF, debiased (z-band)
z_moments_psf_debiased_trace float arcsec Moments-based trace radius of the PSF, debiased (z-band)
z_moments_psf_debiased_flag boolean Failure flag for the debiased PSF moments (z-band)
z_hsmShapeRegauss_e1 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on z-band.
z_hsmShapeRegauss_e2 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on z-band.
z_hsmShapeRegauss_sigma float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on z-band.
z_hsmShapeRegauss_flag boolean Flag set for any failure with the Regaussianziation shapes. Measured on z-band.
z_hsm_moments_30 float HSM higher-order moment 30. Measured on z-band.
z_hsm_momentsPsf_30 float HSM higher-order moment 30 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_21 float HSM higher-order moment 21. Measured on z-band.
z_hsm_momentsPsf_21 float HSM higher-order moment 21 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_12 float HSM higher-order moment 12. Measured on z-band.
z_hsm_momentsPsf_12 float HSM higher-order moment 12 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_03 float HSM higher-order moment 03. Measured on z-band.
z_hsm_momentsPsf_03 float HSM higher-order moment 03 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_40 float HSM higher-order moment 40. Measured on z-band.
z_hsm_momentsPsf_40 float HSM higher-order moment 40 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_31 float HSM higher-order moment 31. Measured on z-band.
z_hsm_momentsPsf_31 float HSM higher-order moment 31 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_22 float HSM higher-order moment 22. Measured on z-band.
z_hsm_momentsPsf_22 float HSM higher-order moment 22 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_13 float HSM higher-order moment 13. Measured on z-band.
z_hsm_momentsPsf_13 float HSM higher-order moment 13 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_04 float HSM higher-order moment 04. Measured on z-band.
z_hsm_momentsPsf_04 float HSM higher-order moment 04 measured on the PSF model at the position of the object. Measured on z-band.
z_hsm_moments_flag boolean Flag set for any failure in the HSM higher-order moments. Measured on z-band.
z_hsm_momentsPsf_flag boolean Flag set for any failure in the HSM higher-order moment on the PSF model. Measured on z-band.
z_inputCount int Number of images contributing at center, not including any clipping. Forced on z-band.
z_deblend_dataCoverage float Fraction of data that contained good data, ie. 1 - number of no data pixels/total number of pixels in the z-band.
z_deblend_blendedness float Blendedness in the deconvolved scarlet space.
z_deblend_fluxOverlap float The total flux from neighboring objects that overlaps with this sources footprint in the deconvolved space.
z_deblend_fluxOverlapFraction float Fraction of flux from neighbors / source flux in the deconvolved footprint.
z_deblend_zeroFlux boolean True when there was no flux attributed to this object after flux redistribution in the deblender.
z_psfModel_TwoGaussian_gauss1_sigma_x float pixel Standard deviation of the first Gaussian component (x-axis) in the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_gauss1_sigma_y float pixel Standard deviation of the first Gaussian component (y-axis) in the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_gauss1_rho float Ellipse rho (correlation coefficient) of the first Gaussian component in the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_gauss1_fluxfrac float Fraction of the total flux (normalized to unity) of the first Gaussian component in the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_gauss2_sigma_x float pixel Standard deviation of the second Gaussian component (x-axis) in the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_gauss2_sigma_y float pixel Standard deviation of the second Gaussian component (y-axis) in the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_gauss2_rho float Ellipse rho (correlation coefficient) of the second Gaussian component in the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_n_iter int Number of iterations in the non-linear fit for the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_chi2_reduced float Reduced chi-squared of the best-fit model parameters (chi divided the number of data points) for the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_unknown_flag boolean Flag set for failures with an unexpected or unknown cause for the two-Gaussian PSF model (z-band).
z_psfModel_TwoGaussian_no_inputs_flag boolean Flag set for objects not fit because there were no coadd PSF inputs for the two-Gaussian PSF model (z-band).
z_inputCount_flag boolean Flag set for any failure in computing the number of inputs. Forced on z-band.
z_inputCount_flag_noInputs boolean No coadd inputs were recorded. Forced on z-band.
z_psfFlux_area float pixel Effective area of PSF. Forced on z-band.
z_psfFlux_flag boolean General Failure Flag. Forced on z-band.
z_psfFlux_flag_apCorr boolean Flag set if unable to aperture-correct the PSF flux. Forced on z-band.
z_psfFlux_flag_edge boolean Object was too close to the edge of the image to use the full PSF model. Forced on z-band.
z_psfFlux_flag_noGoodPixels boolean Not enough non-rejected pixels in data to attempt the fit. Forced on z-band.
z_cModel_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Forced on z-band.
z_cModel_flag_apCorr boolean Flag set if unable to aperture-correct the CModel flux. Forced on z-band.
z_gaapFlux_flag boolean Flag set for any failure in the GAaP photometry. Forced on z-band.
z_gaapFlux_flag_edge boolean Source is too close to the edge. Forced on z-band.
z_blendedness_flag boolean Flag set for any failure in the blendedness algorithm. Measured on z-band.
z_pixelFlags_bad boolean Deprecated; only set when there is no z-band data.
z_pixelFlags_clipped boolean Artifacts were rejected by warp comparison in this object's footprint. Measured on z-band.
z_pixelFlags_clippedCenter boolean Artifacts were rejected by warp comparison in this object's center. Measured on z-band.
z_pixelFlags_cr boolean A cosmic ray was detected and interpolated in this object's footprint. Measured on z-band.
z_pixelFlags_crCenter boolean A cosmic ray was detected and interpolated in this object's center. Measured on z-band.
z_pixelFlags_edge boolean Deprecated; only set when there is no z-band data.
z_pixelFlags_inexact_psf boolean The PSF model is discontinuous in this object's footprint. Measured on z-band.
z_pixelFlags_inexact_psfCenter boolean The PSF model is discontinuosu near this object's center. Measured on z-band.
z_pixelFlags_interpolated boolean An interpolated pixel contributed to the coadd in this object's footprint. Measured on z-band.
z_pixelFlags_interpolatedCenter boolean An interpolated pixel contributed to the coadd near this object's center. Measured on z-band.
z_pixelFlags_nodata boolean No pixel data was available in this band for this object. Measured on z-band.
z_pixelFlags_offimage boolean Deprecated; only set when there is no z-band data.
z_pixelFlags_saturated boolean Saturated pixels were rejected from this object's footprint, but would otherwise have contributed more than 10% of at least one pixel. Measured on z-band.
z_pixelFlags_saturatedCenter boolean Saturated pixels were rjected from near this object's center, but would otherwise have contributed more than 10% of at least one pixel. Measured on z-band.
z_pixelFlags_sensor_edge boolean A detector boundary passed through this object's footprint. Measured on z-band.
z_pixelFlags_sensor_edgeCenter boolean A detector boundary passed close to this object's center. Measured on z-band.
z_pixelFlags_suspect boolean Deprecated; only set when there is no z-band data.
z_pixelFlags_suspectCenter boolean Deprecated; only set when there is no z-band data.
z_extendedness_flag boolean Flag set for any failure in the flux-ratio extendedness. Measured on z-band.
z_sizeExtendedness_flag boolean Flag set for any failure in the moments-based extendedness. Measured on z-band.
z_invalidPsfFlag boolean This object has an invalid PSF (usually no inputs). Measured on z-band.
z_calib_astrometry_used boolean Propagated from sources. Measured on z-band.
z_calib_photometry_used boolean Propagated from sources. Measured on z-band.
z_calib_psf_candidate boolean Propagated from sources. Measured on z-band.
z_calib_psf_reserved boolean Propagated from sources. Measured on z-band.
z_calib_psf_used boolean Propagated from sources. Measured on z-band.
z_apFlux_flag boolean Duplicate of z_ap12Flux_flag.
z_apFlux_flag_apertureTruncated boolean Duplicate of z_ap12Flux_flag_apertureTruncated.
z_apFlux_flag_sincCoeffsTruncated boolean Duplicate of z_ap12Flux_flag_sincCoeffsTruncated. Measured on z-band.
z_centroid_flag boolean Flag set for any failure in the centroid algorithm. Measured on z-band.
z_kronFlux_flag boolean Flag set for any failure in the Kron photometry. Measured on z-band.
z_kronFlux_flag_bad_radius boolean Bad Kron radius. Measured on z-band.
z_kronFlux_flag_bad_shape boolean Shape for measuring Kron radius is bad; used PSF shape. Measured on z-band.
z_kronFlux_flag_bad_shape_no_psf boolean Bad shape and no PSF. Measured on z-band.
z_kronFlux_flag_edge boolean Bad measurement due to image edge. Measured on z-band.
z_kronFlux_flag_no_fallback_radius boolean No minimum radius and no PSF provided. Measured on z-band.
z_kronFlux_flag_no_minimum_radius boolean Minimum radius could not enforced, no minimum value or PSF. Measured on z-band.
z_kronFlux_flag_small_radius boolean Measured Kron radius was smaller than that of the PSF. Measured on z-band.
z_kronFlux_flag_used_minimum_radius boolean Used the minimum radius for the Kron radius. Measured on z-band.
z_kronFlux_flag_used_psf_radius boolean Kron radius fell back to being derived from the PSF radius. Measured on z-band.
u_ra double deg Position in right ascension, measured on u-band. pos.eq.ra
u_dec double deg Position in declination, measured on u-band. pos.eq.dec
u_raErr float deg Error in right ascension, measured on u-band. stat.error;pos.eq.ra
u_decErr float deg Error in declination, measured on u-band. stat.error;pos.eq.dec
u_ra_dec_Cov float deg**2 Covariance between right ascension and declination, measured on u-band. stat.covariance;pos.eq.ra;pos.eq.dec
u_psfFlux float nJy Flux derived from using the PSF model as a weight function. Forced on u-band.
u_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Forced on u-band.
u_psfMag float mag AB magnitude of the u-band psfFlux. 1
u_psfMagErr float mag Uncertainty in magnitudes of the u-band psfFlux. 1
u_free_psfFlux float nJy Flux derived from using the PSF model as a weight function. Measured on u-band.
u_free_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Measured on u-band.
u_free_psfFlux_flag boolean Flag set if the unforced PSF flux failed in this band for any reason. Measured on u-band.
u_cModel_dev_reff_major float arcsec Half-light ellipse of the de Vaucouleurs fit (major axis). Measured on u-band.
u_cModel_dev_reff_minor float arcsec Half-light ellipse of the de Vaucouleurs fit (minor axis). Measured on u-band.
u_cModel_dev_theta float Position angle of the de Vaucouleurs fit ellipse. Measured on u-band.
u_cModel_exp_reff_major float arcsec Half-light ellipse of the exponential fit (major axis). Measured on u-band.
u_cModel_exp_reff_minor float arcsec Half-light ellipse of the exponential fit (minor axis). Measured on u-band.
u_cModel_exp_theta float Position angle of the exponential fit ellipse. Measured on u-band.
u_cModel_chi2 float -ln(likelihood) (chi^2) in CModel fit. Measured on u-band.
u_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on u-band.
u_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on u-band.
u_cModel_expFlux float nJy Flux from the exponential fit. Measured on u-band.
u_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on u-band.
u_gaapPsfFlux float nJy GAaP Flux with PSF aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on u-band.
u_gaapPsfFluxErr float nJy GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on u-band.
u_gaap0p7Flux float nJy GAaP Flux with 0.7 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on u-band.
u_gaap0p7FluxErr float nJy GAaP Flux uncertainty with 0.7 arcsec aperture after multiplying the seeing by 1.15. Forced on u-band.
u_gaap1p0Flux float nJy GAaP Flux with 1.0 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on u-band.
u_gaap1p0FluxErr float nJy GAaP Flux uncertainty with 1.0 arcsec aperture after multiplying the seeing by 1.15. Forced on u-band.
u_ixx float pixel**2 Gaussian-weighted adaptive moments. Measured on u-band.
u_iyy float pixel**2 Gaussian-weighted adaptive moments. Measured on u-band.
u_ixy float pixel**2 Gaussian-weighted adaptive moments. Measured on u-band.
u_i_flag boolean General failure flag, set if anything went wrong. Measured on u-band.
u_ixxPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on u-band.
u_iyyPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on u-band.
u_ixyPSF float pixel**2 Gaussian-weighted adaptive moments. Measured on u-band.
u_iPSF_flag boolean Flag set for any failure in the PSF model moments. Measured on u-band.
u_kronRad float Kron radius (sqrt(a*b)). Measured on u-band.
u_kronFlux float nJy Flux measured within an elliptical aperture 2.5 times the Kron radius. Measured on u-band.
u_kronFluxErr float nJy Flux uncertainty from Kron Flux algorithm. Measured on u-band.
u_ap03Flux float nJy Flux within 3.0-pixel aperture. Forced on u-band.
u_ap03FluxErr float nJy Flux uncertainty within 3.0-pixel aperture. Forced on u-band.
u_ap03Flux_flag boolean Flag set for any failure with the 3.0-pixel aperture flux. Forced on u-band.
u_ap06Flux float nJy Flux within 6.0-pixel aperture. Forced on u-band.
u_ap06FluxErr float nJy Flux uncertainty within 6.0-pixel aperture. Forced on u-band.
u_ap06Flux_flag boolean Flag set for any failure with the 6.0-pixel aperture flux. Forced on u-band.
u_ap09Flux float nJy Flux within 9.0-pixel aperture. Forced on u-band.
u_ap09FluxErr float nJy Flux uncertainty within 9.0-pixel aperture. Forced on u-band.
u_ap09Flux_flag boolean Flag set for any failure with the 9.0-pixel aperture flux. Forced on u-band.
u_ap12Flux float nJy Flux within 12.0-pixel aperture. Forced on u-band.
u_ap12FluxErr float nJy Flux uncertainty within 12.0-pixel aperture. Forced on u-band.
u_ap12Flux_flag boolean Flag set for any failure with the 12.0-pixel aperture flux. Forced on u-band.
u_ap17Flux float nJy Flux within 17.0-pixel aperture. Forced on u-band.
u_ap17FluxErr float nJy Flux uncertainty within 17.0-pixel aperture. Forced on u-band.
u_ap17Flux_flag boolean Flag set for any failure with the 17.0-pixel aperture flux. Forced on u-band.
u_ap25Flux float nJy Flux within 25.0-pixel aperture. Forced on u-band.
u_ap25FluxErr float nJy Flux uncertainty within 25.0-pixel aperture. Forced on u-band.
u_ap25Flux_flag boolean Flag set for any failure with the 25.0-pixel aperture flux. Forced on u-band.
u_ap35Flux float nJy Flux within 35.0-pixel aperture. Forced on u-band.
u_ap35FluxErr float nJy Flux uncertainty within 35.0-pixel aperture. Forced on u-band.
u_ap35Flux_flag boolean Flag set for any failure with the 35.0-pixel aperture flux. Forced on u-band.
u_ap50Flux float nJy Flux within 50.0-pixel aperture. Forced on u-band.
u_ap50FluxErr float nJy Flux uncertainty within 50.0-pixel aperture. Forced on u-band.
u_ap50Flux_flag boolean Flag set for any failure with the 50.0-pixel aperture flux. Forced on u-band.
u_ap70Flux float nJy Flux within 70.0-pixel aperture. Forced on u-band.
u_ap70FluxErr float nJy Flux uncertainty within 70.0-pixel aperture. Forced on u-band.
u_ap70Flux_flag boolean Flag set for any failure with the 70.0-pixel aperture flux. Forced on u-band.
u_extendedness float Flux-ratio measure of whether an object is point-like (0) or extended (1). Measured on u-band.
u_sizeExtendedness float Moments-based measure of whether an object is point-like (0) or extended (1). Measured on u-band.
u_model_extendedness float Model flux- and size-based estimate of whether the object is extended (resolved) or not, from 0 (compact) to 1 (extended). Uses u-band fluxes.
u_blendedness float Measure of how much the flux is affected by neighbors, (1 - child_flux/parent_flux). Operates on the absolute value of the pixels to try to obtain a de-noised value. See section 4.9.11 of Bosch et al. 2018, PASJ, 70, S5 for details. Measured on u-band.
u_cModelFlux float nJy Flux from the final CModel fit. Forced on u-band.
u_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Forced on u-band.
u_cModelMag float mag AB magnitude of cModelFlux. Forced on u-band. 1
u_cModelMagErr float mag Uncertainty in magnitudes on cModelFlux. Forced on u-band. 1
u_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Forced on u-band.
u_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Forced on u-band.
u_free_cModelFlux float nJy Flux from the final CModel fit. Measured on u-band.
u_free_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Measured on u-band.
u_free_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Measured on u-band.
u_free_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Measured on u-band.
u_free_cModelFlux_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Measured on u-band.
u_free_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on u-band.
u_free_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on u-band.
u_free_cModel_expFlux float nJy Flux from the exponential fit. Measured on u-band.
u_free_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on u-band.
u_moments_g1 float Moments-based G1 shear ellipticity parameter (u-band)
u_moments_g2 float Moments-based G2 shear ellipticity parameter (u-band)
u_moments_trace float arcsec Moments-based trace radius (u-band)
u_moments_flag boolean Failure flag for moments (u-band)
u_moments_psf_g1 float Moments-based G1 ellipticity of of the PSF (u-band)
u_moments_psf_g2 float Moments-based G2 ellipticity of of the PSF (u-band)
u_moments_psf_trace float arcsec Moments-based trace radius of the PSF (u-band)
u_moments_psf_flag boolean Failure flag for PSF moments (u-band)
u_moments_psf_debiased_g1 float Moments-based G1 ellipticity of the PSF, debiased (u-band)
u_moments_psf_debiased_g2 float Moments-based G2 ellipticity of the PSF, debiased (u-band)
u_moments_psf_debiased_trace float arcsec Moments-based trace radius of the PSF, debiased (u-band)
u_moments_psf_debiased_flag boolean Failure flag for the debiased PSF moments (u-band)
u_hsmShapeRegauss_e1 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on u-band.
u_hsmShapeRegauss_e2 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on u-band.
u_hsmShapeRegauss_sigma float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on u-band.
u_hsmShapeRegauss_flag boolean Flag set for any failure with the Regaussianziation shapes. Measured on u-band.
u_hsm_moments_30 float HSM higher-order moment 30. Measured on u-band.
u_hsm_momentsPsf_30 float HSM higher-order moment 30 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_21 float HSM higher-order moment 21. Measured on u-band.
u_hsm_momentsPsf_21 float HSM higher-order moment 21 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_12 float HSM higher-order moment 12. Measured on u-band.
u_hsm_momentsPsf_12 float HSM higher-order moment 12 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_03 float HSM higher-order moment 03. Measured on u-band.
u_hsm_momentsPsf_03 float HSM higher-order moment 03 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_40 float HSM higher-order moment 40. Measured on u-band.
u_hsm_momentsPsf_40 float HSM higher-order moment 40 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_31 float HSM higher-order moment 31. Measured on u-band.
u_hsm_momentsPsf_31 float HSM higher-order moment 31 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_22 float HSM higher-order moment 22. Measured on u-band.
u_hsm_momentsPsf_22 float HSM higher-order moment 22 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_13 float HSM higher-order moment 13. Measured on u-band.
u_hsm_momentsPsf_13 float HSM higher-order moment 13 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_04 float HSM higher-order moment 04. Measured on u-band.
u_hsm_momentsPsf_04 float HSM higher-order moment 04 measured on the PSF model at the position of the object. Measured on u-band.
u_hsm_moments_flag boolean Flag set for any failure in the HSM higher-order moments. Measured on u-band.
u_hsm_momentsPsf_flag boolean Flag set for any failure in the HSM higher-order moment on the PSF model. Measured on u-band.
u_inputCount int Number of images contributing at center, not including any clipping. Forced on u-band.
u_deblend_dataCoverage float Fraction of data that contained good data, ie. 1 - number of no data pixels/total number of pixels in the u-band.
u_deblend_blendedness float Blendedness in the deconvolved scarlet space.
u_deblend_fluxOverlap float The total flux from neighboring objects that overlaps with this sources footprint in the deconvolved space.
u_deblend_fluxOverlapFraction float Fraction of flux from neighbors / source flux in the deconvolved footprint.
u_deblend_zeroFlux boolean True when there was no flux attributed to this object after flux redistribution in the deblender.
u_psfModel_TwoGaussian_gauss1_sigma_x float pixel Standard deviation of the first Gaussian component (x-axis) in the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_gauss1_sigma_y float pixel Standard deviation of the first Gaussian component (y-axis) in the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_gauss1_rho float Ellipse rho (correlation coefficient) of the first Gaussian component in the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_gauss1_fluxfrac float Fraction of the total flux (normalized to unity) of the first Gaussian component in the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_gauss2_sigma_x float pixel Standard deviation of the second Gaussian component (x-axis) in the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_gauss2_sigma_y float pixel Standard deviation of the second Gaussian component (y-axis) in the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_gauss2_rho float Ellipse rho (correlation coefficient) of the second Gaussian component in the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_n_iter int Number of iterations in the non-linear fit for the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_chi2_reduced float Reduced chi-squared of the best-fit model parameters (chi divided the number of data points) for the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_unknown_flag boolean Flag set for failures with an unexpected or unknown cause for the two-Gaussian PSF model (u-band).
u_psfModel_TwoGaussian_no_inputs_flag boolean Flag set for objects not fit because there were no coadd PSF inputs for the two-Gaussian PSF model (u-band).
u_inputCount_flag boolean Flag set for any failure in computing the number of inputs. Forced on u-band.
u_inputCount_flag_noInputs boolean No coadd inputs were recorded. Forced on u-band.
u_psfFlux_area float pixel Effective area of PSF. Forced on u-band.
u_psfFlux_flag boolean General Failure Flag. Forced on u-band.
u_psfFlux_flag_apCorr boolean Flag set if unable to aperture-correct the PSF flux. Forced on u-band.
u_psfFlux_flag_edge boolean Object was too close to the edge of the image to use the full PSF model. Forced on u-band.
u_psfFlux_flag_noGoodPixels boolean Not enough non-rejected pixels in data to attempt the fit. Forced on u-band.
u_cModel_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Forced on u-band.
u_cModel_flag_apCorr boolean Flag set if unable to aperture-correct the CModel flux. Forced on u-band.
u_gaapFlux_flag boolean Flag set for any failure in the GAaP photometry. Forced on u-band.
u_gaapFlux_flag_edge boolean Source is too close to the edge. Forced on u-band.
u_blendedness_flag boolean Flag set for any failure in the blendedness algorithm. Measured on u-band.
u_pixelFlags_bad boolean Deprecated; only set when there is no u-band data.
u_pixelFlags_clipped boolean Artifacts were rejected by warp comparison in this object's footprint. Measured on u-band.
u_pixelFlags_clippedCenter boolean Artifacts were rejected by warp comparison in this object's center. Measured on u-band.
u_pixelFlags_cr boolean A cosmic ray was detected and interpolated in this object's footprint. Measured on u-band.
u_pixelFlags_crCenter boolean A cosmic ray was detected and interpolated in this object's center. Measured on u-band.
u_pixelFlags_edge boolean Deprecated; only set when there is no u-band data.
u_pixelFlags_inexact_psf boolean The PSF model is discontinuous in this object's footprint. Measured on u-band.
u_pixelFlags_inexact_psfCenter boolean The PSF model is discontinuosu near this object's center. Measured on u-band.
u_pixelFlags_interpolated boolean An interpolated pixel contributed to the coadd in this object's footprint. Measured on u-band.
u_pixelFlags_interpolatedCenter boolean An interpolated pixel contributed to the coadd near this object's center. Measured on u-band.
u_pixelFlags_nodata boolean No pixel data was available in this band for this object. Measured on u-band.
u_pixelFlags_offimage boolean Deprecated; only set when there is no u-band data.
u_pixelFlags_saturated boolean Saturated pixels were rejected from this object's footprint, but would otherwise have contributed more than 10% of at least one pixel. Measured on u-band.
u_pixelFlags_saturatedCenter boolean Saturated pixels were rjected from near this object's center, but would otherwise have contributed more than 10% of at least one pixel. Measured on u-band.
u_pixelFlags_sensor_edge boolean A detector boundary passed through this object's footprint. Measured on u-band.
u_pixelFlags_sensor_edgeCenter boolean A detector boundary passed close to this object's center. Measured on u-band.
u_pixelFlags_suspect boolean Deprecated; only set when there is no u-band data.
u_pixelFlags_suspectCenter boolean Deprecated; only set when there is no u-band data.
u_extendedness_flag boolean Flag set for any failure in the flux-ratio extendedness. Measured on u-band.
u_sizeExtendedness_flag boolean Flag set for any failure in the moments-based extendedness. Measured on u-band.
u_invalidPsfFlag boolean This object has an invalid PSF (usually no inputs). Measured on u-band.
u_calib_astrometry_used boolean Propagated from sources. Measured on u-band.
u_calib_photometry_used boolean Propagated from sources. Measured on u-band.
u_calib_psf_candidate boolean Propagated from sources. Measured on u-band.
u_calib_psf_reserved boolean Propagated from sources. Measured on u-band.
u_calib_psf_used boolean Propagated from sources. Measured on u-band.
u_apFlux_flag boolean Duplicate of u_ap12Flux_flag.
u_apFlux_flag_apertureTruncated boolean Duplicate of u_ap12Flux_flag_apertureTruncated.
u_apFlux_flag_sincCoeffsTruncated boolean Duplicate of u_ap12Flux_flag_sincCoeffsTruncated. Measured on u-band.
u_centroid_flag boolean Flag set for any failure in the centroid algorithm. Measured on u-band.
u_kronFlux_flag boolean Flag set for any failure in the Kron photometry. Measured on u-band.
u_kronFlux_flag_bad_radius boolean Bad Kron radius. Measured on u-band.
u_kronFlux_flag_bad_shape boolean Shape for measuring Kron radius is bad; used PSF shape. Measured on u-band.
u_kronFlux_flag_bad_shape_no_psf boolean Bad shape and no PSF. Measured on u-band.
u_kronFlux_flag_edge boolean Bad measurement due to image edge. Measured on u-band.
u_kronFlux_flag_no_fallback_radius boolean No minimum radius and no PSF provided. Measured on u-band.
u_kronFlux_flag_no_minimum_radius boolean Minimum radius could not enforced, no minimum value or PSF. Measured on u-band.
u_kronFlux_flag_small_radius boolean Measured Kron radius was smaller than that of the PSF. Measured on u-band.
u_kronFlux_flag_used_minimum_radius boolean Used the minimum radius for the Kron radius. Measured on u-band.
u_kronFlux_flag_used_psf_radius boolean Kron radius fell back to being derived from the PSF radius. Measured on u-band.
g_ra double deg Position in right ascension, measured on g-band. pos.eq.ra
g_dec double deg Position in declination, measured on g-band. pos.eq.dec
g_raErr float deg Error in right ascension, measured on g-band. stat.error;pos.eq.ra
g_decErr float deg Error in declination, measured on g-band. stat.error;pos.eq.dec
g_ra_dec_Cov float deg**2 Covariance between right ascension and declination, measured on g-band. stat.covariance;pos.eq.ra;pos.eq.dec
g_psfFlux float nJy Flux derived from using the PSF model as a weight function. Forced on g-band.
g_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Forced on g-band.
g_psfMag float mag AB magnitude of the g-band psfFlux. 1
g_psfMagErr float mag Uncertainty in magnitudes of the g-band psfFlux. 1
g_free_psfFlux float nJy Flux derived from using the PSF model as a weight function. Measured on g-band.
g_free_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Measured on g-band.
g_free_psfFlux_flag boolean Flag set if the unforced PSF flux failed in this band for any reason. Measured on g-band.
g_cModel_dev_reff_major float arcsec Half-light ellipse of the de Vaucouleurs fit (major axis). Measured on g-band.
g_cModel_dev_reff_minor float arcsec Half-light ellipse of the de Vaucouleurs fit (minor axis). Measured on g-band.
g_cModel_dev_theta float Position angle of the de Vaucouleurs fit ellipse. Measured on g-band.
g_cModel_exp_reff_major float arcsec Half-light ellipse of the exponential fit (major axis). Measured on g-band.
g_cModel_exp_reff_minor float arcsec Half-light ellipse of the exponential fit (minor axis). Measured on g-band.
g_cModel_exp_theta float Position angle of the exponential fit ellipse. Measured on g-band.
g_cModel_chi2 float -ln(likelihood) (chi^2) in CModel fit. Measured on g-band.
g_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on g-band.
g_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on g-band.
g_cModel_expFlux float nJy Flux from the exponential fit. Measured on g-band.
g_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on g-band.
g_gaapPsfFlux float nJy GAaP Flux with PSF aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on g-band.
g_gaapPsfFluxErr float nJy GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on g-band.
g_gaap0p7Flux float nJy GAaP Flux with 0.7 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on g-band.
g_gaap0p7FluxErr float nJy GAaP Flux uncertainty with 0.7 arcsec aperture after multiplying the seeing by 1.15. Forced on g-band.
g_gaap1p0Flux float nJy GAaP Flux with 1.0 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on g-band.
g_gaap1p0FluxErr float nJy GAaP Flux uncertainty with 1.0 arcsec aperture after multiplying the seeing by 1.15. Forced on g-band.
g_ixx float pixel**2 Gaussian-weighted adaptive moments. Measured on g-band.
g_iyy float pixel**2 Gaussian-weighted adaptive moments. Measured on g-band.
g_ixy float pixel**2 Gaussian-weighted adaptive moments. Measured on g-band.
g_i_flag boolean General failure flag, set if anything went wrong. Measured on g-band.
g_ixxPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on g-band.
g_iyyPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on g-band.
g_ixyPSF float pixel**2 Gaussian-weighted adaptive moments. Measured on g-band.
g_iPSF_flag boolean Flag set for any failure in the PSF model moments. Measured on g-band.
g_kronRad float Kron radius (sqrt(a*b)). Measured on g-band.
g_kronFlux float nJy Flux measured within an elliptical aperture 2.5 times the Kron radius. Measured on g-band.
g_kronFluxErr float nJy Flux uncertainty from Kron Flux algorithm. Measured on g-band.
g_ap03Flux float nJy Flux within 3.0-pixel aperture. Forced on g-band.
g_ap03FluxErr float nJy Flux uncertainty within 3.0-pixel aperture. Forced on g-band.
g_ap03Flux_flag boolean Flag set for any failure with the 3.0-pixel aperture flux. Forced on g-band.
g_ap06Flux float nJy Flux within 6.0-pixel aperture. Forced on g-band.
g_ap06FluxErr float nJy Flux uncertainty within 6.0-pixel aperture. Forced on g-band.
g_ap06Flux_flag boolean Flag set for any failure with the 6.0-pixel aperture flux. Forced on g-band.
g_ap09Flux float nJy Flux within 9.0-pixel aperture. Forced on g-band.
g_ap09FluxErr float nJy Flux uncertainty within 9.0-pixel aperture. Forced on g-band.
g_ap09Flux_flag boolean Flag set for any failure with the 9.0-pixel aperture flux. Forced on g-band.
g_ap12Flux float nJy Flux within 12.0-pixel aperture. Forced on g-band.
g_ap12FluxErr float nJy Flux uncertainty within 12.0-pixel aperture. Forced on g-band.
g_ap12Flux_flag boolean Flag set for any failure with the 12.0-pixel aperture flux. Forced on g-band.
g_ap17Flux float nJy Flux within 17.0-pixel aperture. Forced on g-band.
g_ap17FluxErr float nJy Flux uncertainty within 17.0-pixel aperture. Forced on g-band.
g_ap17Flux_flag boolean Flag set for any failure with the 17.0-pixel aperture flux. Forced on g-band.
g_ap25Flux float nJy Flux within 25.0-pixel aperture. Forced on g-band.
g_ap25FluxErr float nJy Flux uncertainty within 25.0-pixel aperture. Forced on g-band.
g_ap25Flux_flag boolean Flag set for any failure with the 25.0-pixel aperture flux. Forced on g-band.
g_ap35Flux float nJy Flux within 35.0-pixel aperture. Forced on g-band.
g_ap35FluxErr float nJy Flux uncertainty within 35.0-pixel aperture. Forced on g-band.
g_ap35Flux_flag boolean Flag set for any failure with the 35.0-pixel aperture flux. Forced on g-band.
g_ap50Flux float nJy Flux within 50.0-pixel aperture. Forced on g-band.
g_ap50FluxErr float nJy Flux uncertainty within 50.0-pixel aperture. Forced on g-band.
g_ap50Flux_flag boolean Flag set for any failure with the 50.0-pixel aperture flux. Forced on g-band.
g_ap70Flux float nJy Flux within 70.0-pixel aperture. Forced on g-band.
g_ap70FluxErr float nJy Flux uncertainty within 70.0-pixel aperture. Forced on g-band.
g_ap70Flux_flag boolean Flag set for any failure with the 70.0-pixel aperture flux. Forced on g-band.
g_extendedness float Flux-ratio measure of whether an object is point-like (0) or extended (1). Measured on g-band.
g_sizeExtendedness float Moments-based measure of whether an object is point-like (0) or extended (1). Measured on g-band.
g_model_extendedness float Model flux- and size-based estimate of whether the object is extended (resolved) or not, from 0 (compact) to 1 (extended). Uses g-band fluxes.
griz_model_extendedness float Model flux- and size-based estimate of whether the object is extended (resolved) or not, from 0 (compact) to 1 (extended). Uses g-band fluxes.
g_blendedness float Measure of how much the flux is affected by neighbors, (1 - child_flux/parent_flux). Operates on the absolute value of the pixels to try to obtain a de-noised value. See section 4.9.11 of Bosch et al. 2018, PASJ, 70, S5 for details. Measured on g-band.
g_cModelFlux float nJy Flux from the final CModel fit. Forced on g-band.
g_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Forced on g-band.
g_cModelMag float mag AB magnitude of cModelFlux. Forced on g-band. 1
g_cModelMagErr float mag Uncertainty in magnitudes on cModelFlux. Forced on g-band. 1
g_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Forced on g-band.
g_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Forced on g-band.
g_free_cModelFlux float nJy Flux from the final CModel fit. Measured on g-band.
g_free_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Measured on g-band.
g_free_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Measured on g-band.
g_free_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Measured on g-band.
g_free_cModelFlux_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Measured on g-band.
g_free_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on g-band.
g_free_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on g-band.
g_free_cModel_expFlux float nJy Flux from the exponential fit. Measured on g-band.
g_free_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on g-band.
g_moments_g1 float Moments-based G1 shear ellipticity parameter (g-band)
g_moments_g2 float Moments-based G2 shear ellipticity parameter (g-band)
g_moments_trace float arcsec Moments-based trace radius (g-band)
g_moments_flag boolean Failure flag for moments (g-band)
g_moments_psf_g1 float Moments-based G1 ellipticity of of the PSF (g-band)
g_moments_psf_g2 float Moments-based G2 ellipticity of of the PSF (g-band)
g_moments_psf_trace float arcsec Moments-based trace radius of the PSF (g-band)
g_moments_psf_flag boolean Failure flag for PSF moments (g-band)
g_moments_psf_debiased_g1 float Moments-based G1 ellipticity of the PSF, debiased (g-band)
g_moments_psf_debiased_g2 float Moments-based G2 ellipticity of the PSF, debiased (g-band)
g_moments_psf_debiased_trace float arcsec Moments-based trace radius of the PSF, debiased (g-band)
g_moments_psf_debiased_flag boolean Failure flag for the debiased PSF moments (g-band)
g_hsmShapeRegauss_e1 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on g-band.
g_hsmShapeRegauss_e2 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on g-band.
g_hsmShapeRegauss_sigma float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on g-band.
g_hsmShapeRegauss_flag boolean Flag set for any failure with the Regaussianziation shapes. Measured on g-band.
g_hsm_moments_30 float HSM higher-order moment 30. Measured on g-band.
g_hsm_momentsPsf_30 float HSM higher-order moment 30 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_21 float HSM higher-order moment 21. Measured on g-band.
g_hsm_momentsPsf_21 float HSM higher-order moment 21 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_12 float HSM higher-order moment 12. Measured on g-band.
g_hsm_momentsPsf_12 float HSM higher-order moment 12 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_03 float HSM higher-order moment 03. Measured on g-band.
g_hsm_momentsPsf_03 float HSM higher-order moment 03 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_40 float HSM higher-order moment 40. Measured on g-band.
g_hsm_momentsPsf_40 float HSM higher-order moment 40 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_31 float HSM higher-order moment 31. Measured on g-band.
g_hsm_momentsPsf_31 float HSM higher-order moment 31 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_22 float HSM higher-order moment 22. Measured on g-band.
g_hsm_momentsPsf_22 float HSM higher-order moment 22 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_13 float HSM higher-order moment 13. Measured on g-band.
g_hsm_momentsPsf_13 float HSM higher-order moment 13 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_04 float HSM higher-order moment 04. Measured on g-band.
g_hsm_momentsPsf_04 float HSM higher-order moment 04 measured on the PSF model at the position of the object. Measured on g-band.
g_hsm_moments_flag boolean Flag set for any failure in the HSM higher-order moments. Measured on g-band.
g_hsm_momentsPsf_flag boolean Flag set for any failure in the HSM higher-order moment on the PSF model. Measured on g-band.
g_inputCount int Number of images contributing at center, not including any clipping. Forced on g-band.
g_deblend_dataCoverage float Fraction of data that contained good data, ie. 1 - number of no data pixels/total number of pixels in the g-band.
g_deblend_blendedness float Blendedness in the deconvolved scarlet space.
g_deblend_fluxOverlap float The total flux from neighboring objects that overlaps with this sources footprint in the deconvolved space.
g_deblend_fluxOverlapFraction float Fraction of flux from neighbors / source flux in the deconvolved footprint.
g_deblend_zeroFlux boolean True when there was no flux attributed to this object after flux redistribution in the deblender.
g_psfModel_TwoGaussian_gauss1_sigma_x float pixel Standard deviation of the first Gaussian component (x-axis) in the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_gauss1_sigma_y float pixel Standard deviation of the first Gaussian component (y-axis) in the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_gauss1_rho float Ellipse rho (correlation coefficient) of the first Gaussian component in the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_gauss1_fluxfrac float Fraction of the total flux (normalized to unity) of the first Gaussian component in the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_gauss2_sigma_x float pixel Standard deviation of the second Gaussian component (x-axis) in the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_gauss2_sigma_y float pixel Standard deviation of the second Gaussian component (y-axis) in the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_gauss2_rho float Ellipse rho (correlation coefficient) of the second Gaussian component in the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_n_iter int Number of iterations in the non-linear fit for the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_chi2_reduced float Reduced chi-squared of the best-fit model parameters (chi divided the number of data points) for the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_unknown_flag boolean Flag set for failures with an unexpected or unknown cause for the two-Gaussian PSF model (g-band).
g_psfModel_TwoGaussian_no_inputs_flag boolean Flag set for objects not fit because there were no coadd PSF inputs for the two-Gaussian PSF model (g-band).
g_inputCount_flag boolean Flag set for any failure in computing the number of inputs. Forced on g-band.
g_inputCount_flag_noInputs boolean No coadd inputs were recorded. Forced on g-band.
g_psfFlux_area float pixel Effective area of PSF. Forced on g-band.
g_psfFlux_flag boolean General Failure Flag. Forced on g-band.
g_psfFlux_flag_apCorr boolean Flag set if unable to aperture-correct the PSF flux. Forced on g-band.
g_psfFlux_flag_edge boolean Object was too close to the edge of the image to use the full PSF model. Forced on g-band.
g_psfFlux_flag_noGoodPixels boolean Not enough non-rejected pixels in data to attempt the fit. Forced on g-band.
g_cModel_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Forced on g-band.
g_cModel_flag_apCorr boolean Flag set if unable to aperture-correct the CModel flux. Forced on g-band.
g_gaapFlux_flag boolean Flag set for any failure in the GAaP photometry. Forced on g-band.
g_gaapFlux_flag_edge boolean Source is too close to the edge. Forced on g-band.
g_blendedness_flag boolean Flag set for any failure in the blendedness algorithm. Measured on g-band.
g_pixelFlags_bad boolean Deprecated; only set when there is no g-band data.
g_pixelFlags_clipped boolean Artifacts were rejected by warp comparison in this object's footprint. Measured on g-band.
g_pixelFlags_clippedCenter boolean Artifacts were rejected by warp comparison in this object's center. Measured on g-band.
g_pixelFlags_cr boolean A cosmic ray was detected and interpolated in this object's footprint. Measured on g-band.
g_pixelFlags_crCenter boolean A cosmic ray was detected and interpolated in this object's center. Measured on g-band.
g_pixelFlags_edge boolean Deprecated; only set when there is no g-band data.
g_pixelFlags_inexact_psf boolean The PSF model is discontinuous in this object's footprint. Measured on g-band.
g_pixelFlags_inexact_psfCenter boolean The PSF model is discontinuosu near this object's center. Measured on g-band.
g_pixelFlags_interpolated boolean An interpolated pixel contributed to the coadd in this object's footprint. Measured on g-band.
g_pixelFlags_interpolatedCenter boolean An interpolated pixel contributed to the coadd near this object's center. Measured on g-band.
g_pixelFlags_nodata boolean No pixel data was available in this band for this object. Measured on g-band.
g_pixelFlags_offimage boolean Deprecated; only set when there is no g-band data.
g_pixelFlags_saturated boolean Saturated pixels were rejected from this object's footprint, but would otherwise have contributed more than 10% of at least one pixel. Measured on g-band.
g_pixelFlags_saturatedCenter boolean Saturated pixels were rjected from near this object's center, but would otherwise have contributed more than 10% of at least one pixel. Measured on g-band.
g_pixelFlags_sensor_edge boolean A detector boundary passed through this object's footprint. Measured on g-band.
g_pixelFlags_sensor_edgeCenter boolean A detector boundary passed close to this object's center. Measured on g-band.
g_pixelFlags_suspect boolean Deprecated; only set when there is no g-band data.
g_pixelFlags_suspectCenter boolean Deprecated; only set when there is no g-band data.
g_extendedness_flag boolean Flag set for any failure in the flux-ratio extendedness. Measured on g-band.
g_sizeExtendedness_flag boolean Flag set for any failure in the moments-based extendedness. Measured on g-band.
g_invalidPsfFlag boolean This object has an invalid PSF (usually no inputs). Measured on g-band.
g_calib_astrometry_used boolean Propagated from sources. Measured on g-band.
g_calib_photometry_used boolean Propagated from sources. Measured on g-band.
g_calib_psf_candidate boolean Propagated from sources. Measured on g-band.
g_calib_psf_reserved boolean Propagated from sources. Measured on g-band.
g_calib_psf_used boolean Propagated from sources. Measured on g-band.
g_apFlux_flag boolean Duplicate of g_ap12Flux_flag.
g_apFlux_flag_apertureTruncated boolean Duplicate of g_ap12Flux_flag_apertureTruncated.
g_apFlux_flag_sincCoeffsTruncated boolean Duplicate of g_ap12Flux_flag_sincCoeffsTruncated. Measured on g-band.
g_centroid_flag boolean Flag set for any failure in the centroid algorithm. Measured on g-band.
g_kronFlux_flag boolean Flag set for any failure in the Kron photometry. Measured on g-band.
g_kronFlux_flag_bad_radius boolean Bad Kron radius. Measured on g-band.
g_kronFlux_flag_bad_shape boolean Shape for measuring Kron radius is bad; used PSF shape. Measured on g-band.
g_kronFlux_flag_bad_shape_no_psf boolean Bad shape and no PSF. Measured on g-band.
g_kronFlux_flag_edge boolean Bad measurement due to image edge. Measured on g-band.
g_kronFlux_flag_no_fallback_radius boolean No minimum radius and no PSF provided. Measured on g-band.
g_kronFlux_flag_no_minimum_radius boolean Minimum radius could not enforced, no minimum value or PSF. Measured on g-band.
g_kronFlux_flag_small_radius boolean Measured Kron radius was smaller than that of the PSF. Measured on g-band.
g_kronFlux_flag_used_minimum_radius boolean Used the minimum radius for the Kron radius. Measured on g-band.
g_kronFlux_flag_used_psf_radius boolean Kron radius fell back to being derived from the PSF radius. Measured on g-band.
r_ra double deg Position in right ascension, measured on r-band. pos.eq.ra
r_dec double deg Position in declination, measured on r-band. pos.eq.dec
r_raErr float deg Error in right ascension, measured on r-band. stat.error;pos.eq.ra
r_decErr float deg Error in declination, measured on r-band. stat.error;pos.eq.dec
r_ra_dec_Cov float deg**2 Covariance between right ascension and declination, measured on r-band. stat.covariance;pos.eq.ra;pos.eq.dec
r_psfFlux float nJy Flux derived from using the PSF model as a weight function. Forced on r-band.
r_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Forced on r-band.
r_psfMag float mag AB magnitude of the r-band psfFlux. 1
r_psfMagErr float mag Uncertainty in magnitudes of the r-band psfFlux. 1
r_free_psfFlux float nJy Flux derived from using the PSF model as a weight function. Measured on r-band.
r_free_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Measured on r-band.
r_free_psfFlux_flag boolean Flag set if the unforced PSF flux failed in this band for any reason. Measured on r-band.
r_cModel_dev_reff_major float arcsec Half-light ellipse of the de Vaucouleurs fit (major axis). Measured on r-band.
r_cModel_dev_reff_minor float arcsec Half-light ellipse of the de Vaucouleurs fit (minor axis). Measured on r-band.
r_cModel_dev_theta float Position angle of the de Vaucouleurs fit ellipse. Measured on r-band.
r_cModel_exp_reff_major float arcsec Half-light ellipse of the exponential fit (major axis). Measured on r-band.
r_cModel_exp_reff_minor float arcsec Half-light ellipse of the exponential fit (minor axis). Measured on r-band.
r_cModel_exp_theta float Position angle of the exponential fit ellipse. Measured on r-band.
r_cModel_chi2 float -ln(likelihood) (chi^2) in CModel fit. Measured on r-band.
r_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on r-band.
r_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on r-band.
r_cModel_expFlux float nJy Flux from the exponential fit. Measured on r-band.
r_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on r-band.
r_gaapPsfFlux float nJy GAaP Flux with PSF aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on r-band.
r_gaapPsfFluxErr float nJy GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on r-band.
r_gaap0p7Flux float nJy GAaP Flux with 0.7 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on r-band.
r_gaap0p7FluxErr float nJy GAaP Flux uncertainty with 0.7 arcsec aperture after multiplying the seeing by 1.15. Forced on r-band.
r_gaap1p0Flux float nJy GAaP Flux with 1.0 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on r-band.
r_gaap1p0FluxErr float nJy GAaP Flux uncertainty with 1.0 arcsec aperture after multiplying the seeing by 1.15. Forced on r-band.
r_ixx float pixel**2 Gaussian-weighted adaptive moments. Measured on r-band.
r_iyy float pixel**2 Gaussian-weighted adaptive moments. Measured on r-band.
r_ixy float pixel**2 Gaussian-weighted adaptive moments. Measured on r-band.
r_i_flag boolean General failure flag, set if anything went wrong. Measured on r-band.
r_ixxPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on r-band.
r_iyyPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on r-band.
r_ixyPSF float pixel**2 Gaussian-weighted adaptive moments. Measured on r-band.
r_iPSF_flag boolean Flag set for any failure in the PSF model moments. Measured on r-band.
r_kronRad float Kron radius (sqrt(a*b)). Measured on r-band.
r_kronFlux float nJy Flux measured within an elliptical aperture 2.5 times the Kron radius. Measured on r-band.
r_kronFluxErr float nJy Flux uncertainty from Kron Flux algorithm. Measured on r-band.
r_ap03Flux float nJy Flux within 3.0-pixel aperture. Forced on r-band.
r_ap03FluxErr float nJy Flux uncertainty within 3.0-pixel aperture. Forced on r-band.
r_ap03Flux_flag boolean Flag set for any failure with the 3.0-pixel aperture flux. Forced on r-band.
r_ap06Flux float nJy Flux within 6.0-pixel aperture. Forced on r-band.
r_ap06FluxErr float nJy Flux uncertainty within 6.0-pixel aperture. Forced on r-band.
r_ap06Flux_flag boolean Flag set for any failure with the 6.0-pixel aperture flux. Forced on r-band.
r_ap09Flux float nJy Flux within 9.0-pixel aperture. Forced on r-band.
r_ap09FluxErr float nJy Flux uncertainty within 9.0-pixel aperture. Forced on r-band.
r_ap09Flux_flag boolean Flag set for any failure with the 9.0-pixel aperture flux. Forced on r-band.
r_ap12Flux float nJy Flux within 12.0-pixel aperture. Forced on r-band.
r_ap12FluxErr float nJy Flux uncertainty within 12.0-pixel aperture. Forced on r-band.
r_ap12Flux_flag boolean Flag set for any failure with the 12.0-pixel aperture flux. Forced on r-band.
r_ap17Flux float nJy Flux within 17.0-pixel aperture. Forced on r-band.
r_ap17FluxErr float nJy Flux uncertainty within 17.0-pixel aperture. Forced on r-band.
r_ap17Flux_flag boolean Flag set for any failure with the 17.0-pixel aperture flux. Forced on r-band.
r_ap25Flux float nJy Flux within 25.0-pixel aperture. Forced on r-band.
r_ap25FluxErr float nJy Flux uncertainty within 25.0-pixel aperture. Forced on r-band.
r_ap25Flux_flag boolean Flag set for any failure with the 25.0-pixel aperture flux. Forced on r-band.
r_ap35Flux float nJy Flux within 35.0-pixel aperture. Forced on r-band.
r_ap35FluxErr float nJy Flux uncertainty within 35.0-pixel aperture. Forced on r-band.
r_ap35Flux_flag boolean Flag set for any failure with the 35.0-pixel aperture flux. Forced on r-band.
r_ap50Flux float nJy Flux within 50.0-pixel aperture. Forced on r-band.
r_ap50FluxErr float nJy Flux uncertainty within 50.0-pixel aperture. Forced on r-band.
r_ap50Flux_flag boolean Flag set for any failure with the 50.0-pixel aperture flux. Forced on r-band.
r_ap70Flux float nJy Flux within 70.0-pixel aperture. Forced on r-band.
r_ap70FluxErr float nJy Flux uncertainty within 70.0-pixel aperture. Forced on r-band.
r_ap70Flux_flag boolean Flag set for any failure with the 70.0-pixel aperture flux. Forced on r-band.
r_extendedness float Flux-ratio measure of whether an object is point-like (0) or extended (1). Measured on r-band.
r_sizeExtendedness float Moments-based measure of whether an object is point-like (0) or extended (1). Measured on r-band.
r_model_extendedness float Model flux- and size-based estimate of whether the object is extended (resolved) or not, from 0 (compact) to 1 (extended). Uses r-band fluxes.
r_blendedness float Measure of how much the flux is affected by neighbors, (1 - child_flux/parent_flux). Operates on the absolute value of the pixels to try to obtain a de-noised value. See section 4.9.11 of Bosch et al. 2018, PASJ, 70, S5 for details. Measured on r-band.
r_cModelFlux float nJy Flux from the final CModel fit. Forced on r-band.
r_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Forced on r-band.
r_cModelMag float mag AB magnitude of cModelFlux. Forced on r-band. 1
r_cModelMagErr float mag Uncertainty in magnitudes on cModelFlux. Forced on r-band. 1
r_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Forced on r-band.
r_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Forced on r-band.
r_free_cModelFlux float nJy Flux from the final CModel fit. Measured on r-band.
r_free_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Measured on r-band.
r_free_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Measured on r-band.
r_free_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Measured on r-band.
r_free_cModelFlux_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Measured on r-band.
r_free_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on r-band.
r_free_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on r-band.
r_free_cModel_expFlux float nJy Flux from the exponential fit. Measured on r-band.
r_free_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on r-band.
r_moments_g1 float Moments-based G1 shear ellipticity parameter (r-band)
r_moments_g2 float Moments-based G2 shear ellipticity parameter (r-band)
r_moments_trace float arcsec Moments-based trace radius (r-band)
r_moments_flag boolean Failure flag for moments (r-band)
r_moments_psf_g1 float Moments-based G1 ellipticity of of the PSF (r-band)
r_moments_psf_g2 float Moments-based G2 ellipticity of of the PSF (r-band)
r_moments_psf_trace float arcsec Moments-based trace radius of the PSF (r-band)
r_moments_psf_flag boolean Failure flag for PSF moments (r-band)
r_moments_psf_debiased_g1 float Moments-based G1 ellipticity of the PSF, debiased (r-band)
r_moments_psf_debiased_g2 float Moments-based G2 ellipticity of the PSF, debiased (r-band)
r_moments_psf_debiased_trace float arcsec Moments-based trace radius of the PSF, debiased (r-band)
r_moments_psf_debiased_flag boolean Failure flag for the debiased PSF moments (r-band)
r_hsmShapeRegauss_e1 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on r-band.
r_hsmShapeRegauss_e2 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on r-band.
r_hsmShapeRegauss_sigma float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on r-band.
r_hsmShapeRegauss_flag boolean Flag set for any failure with the Regaussianziation shapes. Measured on r-band.
r_hsm_moments_30 float HSM higher-order moment 30. Measured on r-band.
r_hsm_momentsPsf_30 float HSM higher-order moment 30 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_21 float HSM higher-order moment 21. Measured on r-band.
r_hsm_momentsPsf_21 float HSM higher-order moment 21 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_12 float HSM higher-order moment 12. Measured on r-band.
r_hsm_momentsPsf_12 float HSM higher-order moment 12 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_03 float HSM higher-order moment 03. Measured on r-band.
r_hsm_momentsPsf_03 float HSM higher-order moment 03 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_40 float HSM higher-order moment 40. Measured on r-band.
r_hsm_momentsPsf_40 float HSM higher-order moment 40 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_31 float HSM higher-order moment 31. Measured on r-band.
r_hsm_momentsPsf_31 float HSM higher-order moment 31 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_22 float HSM higher-order moment 22. Measured on r-band.
r_hsm_momentsPsf_22 float HSM higher-order moment 22 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_13 float HSM higher-order moment 13. Measured on r-band.
r_hsm_momentsPsf_13 float HSM higher-order moment 13 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_04 float HSM higher-order moment 04. Measured on r-band.
r_hsm_momentsPsf_04 float HSM higher-order moment 04 measured on the PSF model at the position of the object. Measured on r-band.
r_hsm_moments_flag boolean Flag set for any failure in the HSM higher-order moments. Measured on r-band.
r_hsm_momentsPsf_flag boolean Flag set for any failure in the HSM higher-order moment on the PSF model. Measured on r-band.
r_inputCount int Number of images contributing at center, not including any clipping. Forced on r-band.
r_deblend_dataCoverage float Fraction of data that contained good data, ie. 1 - number of no data pixels/total number of pixels in the r-band.
r_deblend_blendedness float Blendedness in the deconvolved scarlet space.
r_deblend_fluxOverlap float The total flux from neighboring objects that overlaps with this sources footprint in the deconvolved space.
r_deblend_fluxOverlapFraction float Fraction of flux from neighbors / source flux in the deconvolved footprint.
r_deblend_zeroFlux boolean True when there was no flux attributed to this object after flux redistribution in the deblender.
r_psfModel_TwoGaussian_gauss1_sigma_x float pixel Standard deviation of the first Gaussian component (x-axis) in the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_gauss1_sigma_y float pixel Standard deviation of the first Gaussian component (y-axis) in the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_gauss1_rho float Ellipse rho (correlation coefficient) of the first Gaussian component in the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_gauss1_fluxfrac float Fraction of the total flux (normalized to unity) of the first Gaussian component in the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_gauss2_sigma_x float pixel Standard deviation of the second Gaussian component (x-axis) in the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_gauss2_sigma_y float pixel Standard deviation of the second Gaussian component (y-axis) in the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_gauss2_rho float Ellipse rho (correlation coefficient) of the second Gaussian component in the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_n_iter int Number of iterations in the non-linear fit for the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_chi2_reduced float Reduced chi-squared of the best-fit model parameters (chi divided the number of data points) for the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_unknown_flag boolean Flag set for failures with an unexpected or unknown cause for the two-Gaussian PSF model (r-band).
r_psfModel_TwoGaussian_no_inputs_flag boolean Flag set for objects not fit because there were no coadd PSF inputs for the two-Gaussian PSF model (r-band).
r_inputCount_flag boolean Flag set for any failure in computing the number of inputs. Forced on r-band.
r_inputCount_flag_noInputs boolean No coadd inputs were recorded. Forced on r-band.
r_psfFlux_area float pixel Effective area of PSF. Forced on r-band.
r_psfFlux_flag boolean General Failure Flag. Forced on r-band.
r_psfFlux_flag_apCorr boolean Flag set if unable to aperture-correct the PSF flux. Forced on r-band.
r_psfFlux_flag_edge boolean Object was too close to the edge of the image to use the full PSF model. Forced on r-band.
r_psfFlux_flag_noGoodPixels boolean Not enough non-rejected pixels in data to attempt the fit. Forced on r-band.
r_cModel_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Forced on r-band.
r_cModel_flag_apCorr boolean Flag set if unable to aperture-correct the CModel flux. Forced on r-band.
r_gaapFlux_flag boolean Flag set for any failure in the GAaP photometry. Forced on r-band.
r_gaapFlux_flag_edge boolean Source is too close to the edge. Forced on r-band.
r_blendedness_flag boolean Flag set for any failure in the blendedness algorithm. Measured on r-band.
r_pixelFlags_bad boolean Deprecated; only set when there is no r-band data.
r_pixelFlags_clipped boolean Artifacts were rejected by warp comparison in this object's footprint. Measured on r-band.
r_pixelFlags_clippedCenter boolean Artifacts were rejected by warp comparison in this object's center. Measured on r-band.
r_pixelFlags_cr boolean A cosmic ray was detected and interpolated in this object's footprint. Measured on r-band.
r_pixelFlags_crCenter boolean A cosmic ray was detected and interpolated in this object's center. Measured on r-band.
r_pixelFlags_edge boolean Deprecated; only set when there is no r-band data.
r_pixelFlags_inexact_psf boolean The PSF model is discontinuous in this object's footprint. Measured on r-band.
r_pixelFlags_inexact_psfCenter boolean The PSF model is discontinuosu near this object's center. Measured on r-band.
r_pixelFlags_interpolated boolean An interpolated pixel contributed to the coadd in this object's footprint. Measured on r-band.
r_pixelFlags_interpolatedCenter boolean An interpolated pixel contributed to the coadd near this object's center. Measured on r-band.
r_pixelFlags_nodata boolean No pixel data was available in this band for this object. Measured on r-band.
r_pixelFlags_offimage boolean Deprecated; only set when there is no r-band data.
r_pixelFlags_saturated boolean Saturated pixels were rejected from this object's footprint, but would otherwise have contributed more than 10% of at least one pixel. Measured on r-band.
r_pixelFlags_saturatedCenter boolean Saturated pixels were rjected from near this object's center, but would otherwise have contributed more than 10% of at least one pixel. Measured on r-band.
r_pixelFlags_sensor_edge boolean A detector boundary passed through this object's footprint. Measured on r-band.
r_pixelFlags_sensor_edgeCenter boolean A detector boundary passed close to this object's center. Measured on r-band.
r_pixelFlags_suspect boolean Deprecated; only set when there is no r-band data.
r_pixelFlags_suspectCenter boolean Deprecated; only set when there is no r-band data.
r_extendedness_flag boolean Flag set for any failure in the flux-ratio extendedness. Measured on r-band.
r_sizeExtendedness_flag boolean Flag set for any failure in the moments-based extendedness. Measured on r-band.
r_invalidPsfFlag boolean This object has an invalid PSF (usually no inputs). Measured on r-band.
r_calib_astrometry_used boolean Propagated from sources. Measured on r-band.
r_calib_photometry_used boolean Propagated from sources. Measured on r-band.
r_calib_psf_candidate boolean Propagated from sources. Measured on r-band.
r_calib_psf_reserved boolean Propagated from sources. Measured on r-band.
r_calib_psf_used boolean Propagated from sources. Measured on r-band.
r_apFlux_flag boolean Duplicate of r_ap12Flux_flag.
r_apFlux_flag_apertureTruncated boolean Duplicate of r_ap12Flux_flag_apertureTruncated.
r_apFlux_flag_sincCoeffsTruncated boolean Duplicate of r_ap12Flux_flag_sincCoeffsTruncated. Measured on r-band.
r_centroid_flag boolean Flag set for any failure in the centroid algorithm. Measured on r-band.
r_kronFlux_flag boolean Flag set for any failure in the Kron photometry. Measured on r-band.
r_kronFlux_flag_bad_radius boolean Bad Kron radius. Measured on r-band.
r_kronFlux_flag_bad_shape boolean Shape for measuring Kron radius is bad; used PSF shape. Measured on r-band.
r_kronFlux_flag_bad_shape_no_psf boolean Bad shape and no PSF. Measured on r-band.
r_kronFlux_flag_edge boolean Bad measurement due to image edge. Measured on r-band.
r_kronFlux_flag_no_fallback_radius boolean No minimum radius and no PSF provided. Measured on r-band.
r_kronFlux_flag_no_minimum_radius boolean Minimum radius could not enforced, no minimum value or PSF. Measured on r-band.
r_kronFlux_flag_small_radius boolean Measured Kron radius was smaller than that of the PSF. Measured on r-band.
r_kronFlux_flag_used_minimum_radius boolean Used the minimum radius for the Kron radius. Measured on r-band.
r_kronFlux_flag_used_psf_radius boolean Kron radius fell back to being derived from the PSF radius. Measured on r-band.
i_ra double deg Position in right ascension, measured on i-band. pos.eq.ra
i_dec double deg Position in declination, measured on i-band. pos.eq.dec
i_raErr float deg Error in right ascension, measured on i-band. stat.error;pos.eq.ra
i_decErr float deg Error in declination, measured on i-band. stat.error;pos.eq.dec
i_ra_dec_Cov float deg**2 Covariance between right ascension and declination, measured on i-band. stat.covariance;pos.eq.ra;pos.eq.dec
i_psfFlux float nJy Flux derived from using the PSF model as a weight function. Forced on i-band.
i_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Forced on i-band.
i_psfMag float mag AB magnitude of the i-band psfFlux. 1
i_psfMagErr float mag Uncertainty in magnitudes of the i-band psfFlux. 1
i_free_psfFlux float nJy Flux derived from using the PSF model as a weight function. Measured on i-band.
i_free_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Measured on i-band.
i_free_psfFlux_flag boolean Flag set if the unforced PSF flux failed in this band for any reason. Measured on i-band.
i_cModel_dev_reff_major float arcsec Half-light ellipse of the de Vaucouleurs fit (major axis). Measured on i-band.
i_cModel_dev_reff_minor float arcsec Half-light ellipse of the de Vaucouleurs fit (minor axis). Measured on i-band.
i_cModel_dev_theta float Position angle of the de Vaucouleurs fit ellipse. Measured on i-band.
i_cModel_exp_reff_major float arcsec Half-light ellipse of the exponential fit (major axis). Measured on i-band.
i_cModel_exp_reff_minor float arcsec Half-light ellipse of the exponential fit (minor axis). Measured on i-band.
i_cModel_exp_theta float Position angle of the exponential fit ellipse. Measured on i-band.
i_cModel_chi2 float -ln(likelihood) (chi^2) in CModel fit. Measured on i-band.
i_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on i-band.
i_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on i-band.
i_cModel_expFlux float nJy Flux from the exponential fit. Measured on i-band.
i_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on i-band.
i_gaapPsfFlux float nJy GAaP Flux with PSF aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on i-band.
i_gaapPsfFluxErr float nJy GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on i-band.
i_gaap0p7Flux float nJy GAaP Flux with 0.7 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on i-band.
i_gaap0p7FluxErr float nJy GAaP Flux uncertainty with 0.7 arcsec aperture after multiplying the seeing by 1.15. Forced on i-band.
i_gaap1p0Flux float nJy GAaP Flux with 1.0 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on i-band.
i_gaap1p0FluxErr float nJy GAaP Flux uncertainty with 1.0 arcsec aperture after multiplying the seeing by 1.15. Forced on i-band.
i_ixx float pixel**2 Gaussian-weighted adaptive moments. Measured on i-band.
i_iyy float pixel**2 Gaussian-weighted adaptive moments. Measured on i-band.
i_ixy float pixel**2 Gaussian-weighted adaptive moments. Measured on i-band.
i_i_flag boolean General failure flag, set if anything went wrong. Measured on i-band.
i_ixxPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on i-band.
i_iyyPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on i-band.
i_ixyPSF float pixel**2 Gaussian-weighted adaptive moments. Measured on i-band.
i_iPSF_flag boolean Flag set for any failure in the PSF model moments. Measured on i-band.
i_kronRad float Kron radius (sqrt(a*b)). Measured on i-band.
i_kronFlux float nJy Flux measured within an elliptical aperture 2.5 times the Kron radius. Measured on i-band.
i_kronFluxErr float nJy Flux uncertainty from Kron Flux algorithm. Measured on i-band.
i_ap03Flux float nJy Flux within 3.0-pixel aperture. Forced on i-band.
i_ap03FluxErr float nJy Flux uncertainty within 3.0-pixel aperture. Forced on i-band.
i_ap03Flux_flag boolean Flag set for any failure with the 3.0-pixel aperture flux. Forced on i-band.
i_ap06Flux float nJy Flux within 6.0-pixel aperture. Forced on i-band.
i_ap06FluxErr float nJy Flux uncertainty within 6.0-pixel aperture. Forced on i-band.
i_ap06Flux_flag boolean Flag set for any failure with the 6.0-pixel aperture flux. Forced on i-band.
i_ap09Flux float nJy Flux within 9.0-pixel aperture. Forced on i-band.
i_ap09FluxErr float nJy Flux uncertainty within 9.0-pixel aperture. Forced on i-band.
i_ap09Flux_flag boolean Flag set for any failure with the 9.0-pixel aperture flux. Forced on i-band.
i_ap12Flux float nJy Flux within 12.0-pixel aperture. Forced on i-band.
i_ap12FluxErr float nJy Flux uncertainty within 12.0-pixel aperture. Forced on i-band.
i_ap12Flux_flag boolean Flag set for any failure with the 12.0-pixel aperture flux. Forced on i-band.
i_ap17Flux float nJy Flux within 17.0-pixel aperture. Forced on i-band.
i_ap17FluxErr float nJy Flux uncertainty within 17.0-pixel aperture. Forced on i-band.
i_ap17Flux_flag boolean Flag set for any failure with the 17.0-pixel aperture flux. Forced on i-band.
i_ap25Flux float nJy Flux within 25.0-pixel aperture. Forced on i-band.
i_ap25FluxErr float nJy Flux uncertainty within 25.0-pixel aperture. Forced on i-band.
i_ap25Flux_flag boolean Flag set for any failure with the 25.0-pixel aperture flux. Forced on i-band.
i_ap35Flux float nJy Flux within 35.0-pixel aperture. Forced on i-band.
i_ap35FluxErr float nJy Flux uncertainty within 35.0-pixel aperture. Forced on i-band.
i_ap35Flux_flag boolean Flag set for any failure with the 35.0-pixel aperture flux. Forced on i-band.
i_ap50Flux float nJy Flux within 50.0-pixel aperture. Forced on i-band.
i_ap50FluxErr float nJy Flux uncertainty within 50.0-pixel aperture. Forced on i-band.
i_ap50Flux_flag boolean Flag set for any failure with the 50.0-pixel aperture flux. Forced on i-band.
i_ap70Flux float nJy Flux within 70.0-pixel aperture. Forced on i-band.
i_ap70FluxErr float nJy Flux uncertainty within 70.0-pixel aperture. Forced on i-band.
i_ap70Flux_flag boolean Flag set for any failure with the 70.0-pixel aperture flux. Forced on i-band.
i_extendedness float Flux-ratio measure of whether an object is point-like (0) or extended (1). Measured on i-band.
i_sizeExtendedness float Moments-based measure of whether an object is point-like (0) or extended (1). Measured on i-band.
i_model_extendedness float Model flux- and size-based estimate of whether the object is extended (resolved) or not, from 0 (compact) to 1 (extended). Uses i-band fluxes.
i_blendedness float Measure of how much the flux is affected by neighbors, (1 - child_flux/parent_flux). Operates on the absolute value of the pixels to try to obtain a de-noised value. See section 4.9.11 of Bosch et al. 2018, PASJ, 70, S5 for details. Measured on i-band.
i_cModelFlux float nJy Flux from the final CModel fit. Forced on i-band.
i_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Forced on i-band.
i_cModelMag float mag AB magnitude of cModelFlux. Forced on i-band. 1
i_cModelMagErr float mag Uncertainty in magnitudes on cModelFlux. Forced on i-band. 1
i_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Forced on i-band.
i_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Forced on i-band.
i_free_cModelFlux float nJy Flux from the final CModel fit. Measured on i-band.
i_free_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Measured on i-band.
i_free_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Measured on i-band.
i_free_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Measured on i-band.
i_free_cModelFlux_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Measured on i-band.
i_free_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on i-band.
i_free_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on i-band.
i_free_cModel_expFlux float nJy Flux from the exponential fit. Measured on i-band.
i_free_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on i-band.
i_moments_g1 float Moments-based G1 shear ellipticity parameter (i-band)
i_moments_g2 float Moments-based G2 shear ellipticity parameter (i-band)
i_moments_trace float arcsec Moments-based trace radius (i-band)
i_moments_flag boolean Failure flag for moments (i-band)
i_moments_psf_g1 float Moments-based G1 ellipticity of of the PSF (i-band)
i_moments_psf_g2 float Moments-based G2 ellipticity of of the PSF (i-band)
i_moments_psf_trace float arcsec Moments-based trace radius of the PSF (i-band)
i_moments_psf_flag boolean Failure flag for PSF moments (i-band)
i_moments_psf_debiased_g1 float Moments-based G1 ellipticity of the PSF, debiased (i-band)
i_moments_psf_debiased_g2 float Moments-based G2 ellipticity of the PSF, debiased (i-band)
i_moments_psf_debiased_trace float arcsec Moments-based trace radius of the PSF, debiased (i-band)
i_moments_psf_debiased_flag boolean Failure flag for the debiased PSF moments (i-band)
i_hsmShapeRegauss_e1 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on i-band.
i_hsmShapeRegauss_e2 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on i-band.
i_hsmShapeRegauss_sigma float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on i-band.
i_hsmShapeRegauss_flag boolean Flag set for any failure with the Regaussianziation shapes. Measured on i-band.
i_hsm_moments_30 float HSM higher-order moment 30. Measured on i-band.
i_hsm_momentsPsf_30 float HSM higher-order moment 30 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_21 float HSM higher-order moment 21. Measured on i-band.
i_hsm_momentsPsf_21 float HSM higher-order moment 21 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_12 float HSM higher-order moment 12. Measured on i-band.
i_hsm_momentsPsf_12 float HSM higher-order moment 12 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_03 float HSM higher-order moment 03. Measured on i-band.
i_hsm_momentsPsf_03 float HSM higher-order moment 03 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_40 float HSM higher-order moment 40. Measured on i-band.
i_hsm_momentsPsf_40 float HSM higher-order moment 40 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_31 float HSM higher-order moment 31. Measured on i-band.
i_hsm_momentsPsf_31 float HSM higher-order moment 31 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_22 float HSM higher-order moment 22. Measured on i-band.
i_hsm_momentsPsf_22 float HSM higher-order moment 22 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_13 float HSM higher-order moment 13. Measured on i-band.
i_hsm_momentsPsf_13 float HSM higher-order moment 13 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_04 float HSM higher-order moment 04. Measured on i-band.
i_hsm_momentsPsf_04 float HSM higher-order moment 04 measured on the PSF model at the position of the object. Measured on i-band.
i_hsm_moments_flag boolean Flag set for any failure in the HSM higher-order moments. Measured on i-band.
i_hsm_momentsPsf_flag boolean Flag set for any failure in the HSM higher-order moment on the PSF model. Measured on i-band.
i_inputCount int Number of images contributing at center, not including any clipping. Forced on i-band.
i_deblend_dataCoverage float Fraction of data that contained good data, ie. 1 - number of no data pixels/total number of pixels in the i-band.
i_deblend_blendedness float Blendedness in the deconvolved scarlet space.
i_deblend_fluxOverlap float The total flux from neighboring objects that overlaps with this sources footprint in the deconvolved space.
i_deblend_fluxOverlapFraction float Fraction of flux from neighbors / source flux in the deconvolved footprint.
i_deblend_zeroFlux boolean True when there was no flux attributed to this object after flux redistribution in the deblender.
i_psfModel_TwoGaussian_gauss1_sigma_x float pixel Standard deviation of the first Gaussian component (x-axis) in the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_gauss1_sigma_y float pixel Standard deviation of the first Gaussian component (y-axis) in the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_gauss1_rho float Ellipse rho (correlation coefficient) of the first Gaussian component in the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_gauss1_fluxfrac float Fraction of the total flux (normalized to unity) of the first Gaussian component in the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_gauss2_sigma_x float pixel Standard deviation of the second Gaussian component (x-axis) in the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_gauss2_sigma_y float pixel Standard deviation of the second Gaussian component (y-axis) in the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_gauss2_rho float Ellipse rho (correlation coefficient) of the second Gaussian component in the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_n_iter int Number of iterations in the non-linear fit for the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_chi2_reduced float Reduced chi-squared of the best-fit model parameters (chi divided the number of data points) for the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_unknown_flag boolean Flag set for failures with an unexpected or unknown cause for the two-Gaussian PSF model (i-band).
i_psfModel_TwoGaussian_no_inputs_flag boolean Flag set for objects not fit because there were no coadd PSF inputs for the two-Gaussian PSF model (i-band).
i_inputCount_flag boolean Flag set for any failure in computing the number of inputs. Forced on i-band.
i_inputCount_flag_noInputs boolean No coadd inputs were recorded. Forced on i-band.
i_psfFlux_area float pixel Effective area of PSF. Forced on i-band.
i_psfFlux_flag boolean General Failure Flag. Forced on i-band.
i_psfFlux_flag_apCorr boolean Flag set if unable to aperture-correct the PSF flux. Forced on i-band.
i_psfFlux_flag_edge boolean Object was too close to the edge of the image to use the full PSF model. Forced on i-band.
i_psfFlux_flag_noGoodPixels boolean Not enough non-rejected pixels in data to attempt the fit. Forced on i-band.
i_cModel_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Forced on i-band.
i_cModel_flag_apCorr boolean Flag set if unable to aperture-correct the CModel flux. Forced on i-band.
i_gaapFlux_flag boolean Flag set for any failure in the GAaP photometry. Forced on i-band.
i_gaapFlux_flag_edge boolean Source is too close to the edge. Forced on i-band.
i_blendedness_flag boolean Flag set for any failure in the blendedness algorithm. Measured on i-band.
i_pixelFlags_bad boolean Deprecated; only set when there is no i-band data.
i_pixelFlags_clipped boolean Artifacts were rejected by warp comparison in this object's footprint. Measured on i-band.
i_pixelFlags_clippedCenter boolean Artifacts were rejected by warp comparison in this object's center. Measured on i-band.
i_pixelFlags_cr boolean A cosmic ray was detected and interpolated in this object's footprint. Measured on i-band.
i_pixelFlags_crCenter boolean A cosmic ray was detected and interpolated in this object's center. Measured on i-band.
i_pixelFlags_edge boolean Deprecated; only set when there is no i-band data.
i_pixelFlags_inexact_psf boolean The PSF model is discontinuous in this object's footprint. Measured on i-band.
i_pixelFlags_inexact_psfCenter boolean The PSF model is discontinuosu near this object's center. Measured on i-band.
i_pixelFlags_interpolated boolean An interpolated pixel contributed to the coadd in this object's footprint. Measured on i-band.
i_pixelFlags_interpolatedCenter boolean An interpolated pixel contributed to the coadd near this object's center. Measured on i-band.
i_pixelFlags_nodata boolean No pixel data was available in this band for this object. Measured on i-band.
i_pixelFlags_offimage boolean Deprecated; only set when there is no i-band data.
i_pixelFlags_saturated boolean Saturated pixels were rejected from this object's footprint, but would otherwise have contributed more than 10% of at least one pixel. Measured on i-band.
i_pixelFlags_saturatedCenter boolean Saturated pixels were rjected from near this object's center, but would otherwise have contributed more than 10% of at least one pixel. Measured on i-band.
i_pixelFlags_sensor_edge boolean A detector boundary passed through this object's footprint. Measured on i-band.
i_pixelFlags_sensor_edgeCenter boolean A detector boundary passed close to this object's center. Measured on i-band.
i_pixelFlags_suspect boolean Deprecated; only set when there is no i-band data.
i_pixelFlags_suspectCenter boolean Deprecated; only set when there is no i-band data.
i_extendedness_flag boolean Flag set for any failure in the flux-ratio extendedness. Measured on i-band.
i_sizeExtendedness_flag boolean Flag set for any failure in the moments-based extendedness. Measured on i-band.
i_invalidPsfFlag boolean This object has an invalid PSF (usually no inputs). Measured on i-band.
i_calib_astrometry_used boolean Propagated from sources. Measured on i-band.
i_calib_photometry_used boolean Propagated from sources. Measured on i-band.
i_calib_psf_candidate boolean Propagated from sources. Measured on i-band.
i_calib_psf_reserved boolean Propagated from sources. Measured on i-band.
i_calib_psf_used boolean Propagated from sources. Measured on i-band.
i_apFlux_flag boolean Duplicate of i_ap12Flux_flag.
i_apFlux_flag_apertureTruncated boolean Duplicate of i_ap12Flux_flag_apertureTruncated.
i_apFlux_flag_sincCoeffsTruncated boolean Duplicate of i_ap12Flux_flag_sincCoeffsTruncated. Measured on i-band.
i_centroid_flag boolean Flag set for any failure in the centroid algorithm. Measured on i-band.
i_kronFlux_flag boolean Flag set for any failure in the Kron photometry. Measured on i-band.
i_kronFlux_flag_bad_radius boolean Bad Kron radius. Measured on i-band.
i_kronFlux_flag_bad_shape boolean Shape for measuring Kron radius is bad; used PSF shape. Measured on i-band.
i_kronFlux_flag_bad_shape_no_psf boolean Bad shape and no PSF. Measured on i-band.
i_kronFlux_flag_edge boolean Bad measurement due to image edge. Measured on i-band.
i_kronFlux_flag_no_fallback_radius boolean No minimum radius and no PSF provided. Measured on i-band.
i_kronFlux_flag_no_minimum_radius boolean Minimum radius could not enforced, no minimum value or PSF. Measured on i-band.
i_kronFlux_flag_small_radius boolean Measured Kron radius was smaller than that of the PSF. Measured on i-band.
i_kronFlux_flag_used_minimum_radius boolean Used the minimum radius for the Kron radius. Measured on i-band.
i_kronFlux_flag_used_psf_radius boolean Kron radius fell back to being derived from the PSF radius. Measured on i-band.
y_ra double deg Position in right ascension, measured on y-band. pos.eq.ra
y_dec double deg Position in declination, measured on y-band. pos.eq.dec
y_raErr float deg Error in right ascension, measured on y-band. stat.error;pos.eq.ra
y_decErr float deg Error in declination, measured on y-band. stat.error;pos.eq.dec
y_ra_dec_Cov float deg**2 Covariance between right ascension and declination, measured on y-band. stat.covariance;pos.eq.ra;pos.eq.dec
y_psfFlux float nJy Flux derived from using the PSF model as a weight function. Forced on y-band.
y_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Forced on y-band.
y_psfMag float mag AB magnitude of the y-band psfFlux. 1
y_psfMagErr float mag Uncertainty in magnitudes of the y-band psfFlux. 1
y_free_psfFlux float nJy Flux derived from using the PSF model as a weight function. Measured on y-band.
y_free_psfFluxErr float nJy Flux uncertainty derived from using the PSF model as a weight function. Measured on y-band.
y_free_psfFlux_flag boolean Flag set if the unforced PSF flux failed in this band for any reason. Measured on y-band.
y_cModel_dev_reff_major float arcsec Half-light ellipse of the de Vaucouleurs fit (major axis). Measured on y-band.
y_cModel_dev_reff_minor float arcsec Half-light ellipse of the de Vaucouleurs fit (minor axis). Measured on y-band.
y_cModel_dev_theta float Position angle of the de Vaucouleurs fit ellipse. Measured on y-band.
y_cModel_exp_reff_major float arcsec Half-light ellipse of the exponential fit (major axis). Measured on y-band.
y_cModel_exp_reff_minor float arcsec Half-light ellipse of the exponential fit (minor axis). Measured on y-band.
y_cModel_exp_theta float Position angle of the exponential fit ellipse. Measured on y-band.
y_cModel_chi2 float -ln(likelihood) (chi^2) in CModel fit. Measured on y-band.
y_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on y-band.
y_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on y-band.
y_cModel_expFlux float nJy Flux from the exponential fit. Measured on y-band.
y_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on y-band.
y_gaapPsfFlux float nJy GAaP Flux with PSF aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on y-band.
y_gaapPsfFluxErr float nJy GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on y-band.
y_gaap0p7Flux float nJy GAaP Flux with 0.7 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on y-band.
y_gaap0p7FluxErr float nJy GAaP Flux uncertainty with 0.7 arcsec aperture after multiplying the seeing by 1.15. Forced on y-band.
y_gaap1p0Flux float nJy GAaP Flux with 1.0 arcsec aperture after reconvolving the image to a Gaussian PSF larger than the original by a factor of 1.15. Forced on y-band.
y_gaap1p0FluxErr float nJy GAaP Flux uncertainty with 1.0 arcsec aperture after multiplying the seeing by 1.15. Forced on y-band.
y_ixx float pixel**2 Gaussian-weighted adaptive moments. Measured on y-band.
y_iyy float pixel**2 Gaussian-weighted adaptive moments. Measured on y-band.
y_ixy float pixel**2 Gaussian-weighted adaptive moments. Measured on y-band.
y_i_flag boolean General failure flag, set if anything went wrong. Measured on y-band.
y_ixxPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on y-band.
y_iyyPSF float pixel**2 Gaussian-weighted adaptive moments of the PSF model at the position of this object. Measured on y-band.
y_ixyPSF float pixel**2 Gaussian-weighted adaptive moments. Measured on y-band.
y_iPSF_flag boolean Flag set for any failure in the PSF model moments. Measured on y-band.
y_kronRad float Kron radius (sqrt(a*b)). Measured on y-band.
y_kronFlux float nJy Flux measured within an elliptical aperture 2.5 times the Kron radius. Measured on y-band.
y_kronFluxErr float nJy Flux uncertainty from Kron Flux algorithm. Measured on y-band.
y_ap03Flux float nJy Flux within 3.0-pixel aperture. Forced on y-band.
y_ap03FluxErr float nJy Flux uncertainty within 3.0-pixel aperture. Forced on y-band.
y_ap03Flux_flag boolean Flag set for any failure with the 3.0-pixel aperture flux. Forced on y-band.
y_ap06Flux float nJy Flux within 6.0-pixel aperture. Forced on y-band.
y_ap06FluxErr float nJy Flux uncertainty within 6.0-pixel aperture. Forced on y-band.
y_ap06Flux_flag boolean Flag set for any failure with the 6.0-pixel aperture flux. Forced on y-band.
y_ap09Flux float nJy Flux within 9.0-pixel aperture. Forced on y-band.
y_ap09FluxErr float nJy Flux uncertainty within 9.0-pixel aperture. Forced on y-band.
y_ap09Flux_flag boolean Flag set for any failure with the 9.0-pixel aperture flux. Forced on y-band.
y_ap12Flux float nJy Flux within 12.0-pixel aperture. Forced on y-band.
y_ap12FluxErr float nJy Flux uncertainty within 12.0-pixel aperture. Forced on y-band.
y_ap12Flux_flag boolean Flag set for any failure with the 12.0-pixel aperture flux. Forced on y-band.
y_ap17Flux float nJy Flux within 17.0-pixel aperture. Forced on y-band.
y_ap17FluxErr float nJy Flux uncertainty within 17.0-pixel aperture. Forced on y-band.
y_ap17Flux_flag boolean Flag set for any failure with the 17.0-pixel aperture flux. Forced on y-band.
y_ap25Flux float nJy Flux within 25.0-pixel aperture. Forced on y-band.
y_ap25FluxErr float nJy Flux uncertainty within 25.0-pixel aperture. Forced on y-band.
y_ap25Flux_flag boolean Flag set for any failure with the 25.0-pixel aperture flux. Forced on y-band.
y_ap35Flux float nJy Flux within 35.0-pixel aperture. Forced on y-band.
y_ap35FluxErr float nJy Flux uncertainty within 35.0-pixel aperture. Forced on y-band.
y_ap35Flux_flag boolean Flag set for any failure with the 35.0-pixel aperture flux. Forced on y-band.
y_ap50Flux float nJy Flux within 50.0-pixel aperture. Forced on y-band.
y_ap50FluxErr float nJy Flux uncertainty within 50.0-pixel aperture. Forced on y-band.
y_ap50Flux_flag boolean Flag set for any failure with the 50.0-pixel aperture flux. Forced on y-band.
y_ap70Flux float nJy Flux within 70.0-pixel aperture. Forced on y-band.
y_ap70FluxErr float nJy Flux uncertainty within 70.0-pixel aperture. Forced on y-band.
y_ap70Flux_flag boolean Flag set for any failure with the 70.0-pixel aperture flux. Forced on y-band.
y_extendedness float Flux-ratio measure of whether an object is point-like (0) or extended (1). Measured on y-band.
y_sizeExtendedness float Moments-based measure of whether an object is point-like (0) or extended (1). Measured on y-band.
y_model_extendedness float Model flux- and size-based estimate of whether the object is extended (resolved) or not, from 0 (compact) to 1 (extended). Uses y-band fluxes.
y_blendedness float Measure of how much the flux is affected by neighbors, (1 - child_flux/parent_flux). Operates on the absolute value of the pixels to try to obtain a de-noised value. See section 4.9.11 of Bosch et al. 2018, PASJ, 70, S5 for details. Measured on y-band.
y_cModelFlux float nJy Flux from the final CModel fit. Forced on y-band.
y_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Forced on y-band.
y_cModelMag float mag AB magnitude of cModelFlux. Forced on y-band. 1
y_cModelMagErr float mag Uncertainty in magnitudes on cModelFlux. Forced on y-band. 1
y_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Forced on y-band.
y_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Forced on y-band.
y_free_cModelFlux float nJy Flux from the final CModel fit. Measured on y-band.
y_free_cModelFluxErr float nJy Flux uncertainty from the final CModel fit. Measured on y-band.
y_free_cModelFlux_inner float nJy Flux within the fit region, with no extrapolation. Measured on y-band.
y_free_cModel_fracDev float Fraction of the CModel flux from the De Vaucouleurs (n=4) component. Measured on y-band.
y_free_cModelFlux_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Measured on y-band.
y_free_cModel_devFlux float nJy Flux from the de Vaucouleurs fit. Measured on y-band.
y_free_cModel_devFluxErr float nJy Flux uncertainty from the de Vaucouleurs fit. Measured on y-band.
y_free_cModel_expFlux float nJy Flux from the exponential fit. Measured on y-band.
y_free_cModel_expFluxErr float nJy Flux uncertainty from the exponential fit. Measured on y-band.
y_moments_g1 float Moments-based G1 shear ellipticity parameter (y-band)
y_moments_g2 float Moments-based G2 shear ellipticity parameter (y-band)
y_moments_trace float arcsec Moments-based trace radius (y-band)
y_moments_flag boolean Failure flag for moments (y-band)
y_moments_psf_g1 float Moments-based G1 ellipticity of of the PSF (y-band)
y_moments_psf_g2 float Moments-based G2 ellipticity of of the PSF (y-band)
y_moments_psf_trace float arcsec Moments-based trace radius of the PSF (y-band)
y_moments_psf_flag boolean Failure flag for PSF moments (y-band)
y_moments_psf_debiased_g1 float Moments-based G1 ellipticity of the PSF, debiased (y-band)
y_moments_psf_debiased_g2 float Moments-based G2 ellipticity of the PSF, debiased (y-band)
y_moments_psf_debiased_trace float arcsec Moments-based trace radius of the PSF, debiased (y-band)
y_moments_psf_debiased_flag boolean Failure flag for the debiased PSF moments (y-band)
y_hsmShapeRegauss_e1 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on y-band.
y_hsmShapeRegauss_e2 float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on y-band.
y_hsmShapeRegauss_sigma float PSF-corrected shear using the Hirata & Seljak (2003) Regaussianization algorithm. Measured on y-band.
y_hsmShapeRegauss_flag boolean Flag set for any failure with the Regaussianziation shapes. Measured on y-band.
y_hsm_moments_30 float HSM higher-order moment 30. Measured on y-band.
y_hsm_momentsPsf_30 float HSM higher-order moment 30 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_21 float HSM higher-order moment 21. Measured on y-band.
y_hsm_momentsPsf_21 float HSM higher-order moment 21 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_12 float HSM higher-order moment 12. Measured on y-band.
y_hsm_momentsPsf_12 float HSM higher-order moment 12 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_03 float HSM higher-order moment 03. Measured on y-band.
y_hsm_momentsPsf_03 float HSM higher-order moment 03 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_40 float HSM higher-order moment 40. Measured on y-band.
y_hsm_momentsPsf_40 float HSM higher-order moment 40 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_31 float HSM higher-order moment 31. Measured on y-band.
y_hsm_momentsPsf_31 float HSM higher-order moment 31 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_22 float HSM higher-order moment 22. Measured on y-band.
y_hsm_momentsPsf_22 float HSM higher-order moment 22 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_13 float HSM higher-order moment 13. Measured on y-band.
y_hsm_momentsPsf_13 float HSM higher-order moment 13 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_04 float HSM higher-order moment 04. Measured on y-band.
y_hsm_momentsPsf_04 float HSM higher-order moment 04 measured on the PSF model at the position of the object. Measured on y-band.
y_hsm_moments_flag boolean Flag set for any failure in the HSM higher-order moments. Measured on y-band.
y_hsm_momentsPsf_flag boolean Flag set for any failure in the HSM higher-order moment on the PSF model. Measured on y-band.
y_inputCount int Number of images contributing at center, not including any clipping. Forced on y-band.
y_deblend_dataCoverage float Fraction of data that contained good data, ie. 1 - number of no data pixels/total number of pixels in the y-band.
y_deblend_blendedness float Blendedness in the deconvolved scarlet space.
y_deblend_fluxOverlap float The total flux from neighboring objects that overlaps with this sources footprint in the deconvolved space.
y_deblend_fluxOverlapFraction float Fraction of flux from neighbors / source flux in the deconvolved footprint.
y_deblend_zeroFlux boolean True when there was no flux attributed to this object after flux redistribution in the deblender.
y_psfModel_TwoGaussian_gauss1_sigma_x float pixel Standard deviation of the first Gaussian component (x-axis) in the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_gauss1_sigma_y float pixel Standard deviation of the first Gaussian component (y-axis) in the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_gauss1_rho float Ellipse rho (correlation coefficient) of the first Gaussian component in the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_gauss1_fluxfrac float Fraction of the total flux (normalized to unity) of the first Gaussian component in the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_gauss2_sigma_x float pixel Standard deviation of the second Gaussian component (x-axis) in the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_gauss2_sigma_y float pixel Standard deviation of the second Gaussian component (y-axis) in the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_gauss2_rho float Ellipse rho (correlation coefficient) of the second Gaussian component in the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_n_iter int Number of iterations in the non-linear fit for the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_chi2_reduced float Reduced chi-squared of the best-fit model parameters (chi divided the number of data points) for the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_unknown_flag boolean Flag set for failures with an unexpected or unknown cause for the two-Gaussian PSF model (y-band).
y_psfModel_TwoGaussian_no_inputs_flag boolean Flag set for objects not fit because there were no coadd PSF inputs for the two-Gaussian PSF model (y-band).
y_inputCount_flag boolean Flag set for any failure in computing the number of inputs. Forced on y-band.
y_inputCount_flag_noInputs boolean No coadd inputs were recorded. Forced on y-band.
y_psfFlux_area float pixel Effective area of PSF. Forced on y-band.
y_psfFlux_flag boolean General Failure Flag. Forced on y-band.
y_psfFlux_flag_apCorr boolean Flag set if unable to aperture-correct the PSF flux. Forced on y-band.
y_psfFlux_flag_edge boolean Object was too close to the edge of the image to use the full PSF model. Forced on y-band.
y_psfFlux_flag_noGoodPixels boolean Not enough non-rejected pixels in data to attempt the fit. Forced on y-band.
y_cModel_flag boolean Flag set if the final CModel fit (or any previous fit) failed. Forced on y-band.
y_cModel_flag_apCorr boolean Flag set if unable to aperture-correct the CModel flux. Forced on y-band.
y_gaapFlux_flag boolean Flag set for any failure in the GAaP photometry. Forced on y-band.
y_gaapFlux_flag_edge boolean Source is too close to the edge. Forced on y-band.
y_blendedness_flag boolean Flag set for any failure in the blendedness algorithm. Measured on y-band.
y_pixelFlags_bad boolean Deprecated; only set when there is no y-band data.
y_pixelFlags_clipped boolean Artifacts were rejected by warp comparison in this object's footprint. Measured on y-band.
y_pixelFlags_clippedCenter boolean Artifacts were rejected by warp comparison in this object's center. Measured on y-band.
y_pixelFlags_cr boolean A cosmic ray was detected and interpolated in this object's footprint. Measured on y-band.
y_pixelFlags_crCenter boolean A cosmic ray was detected and interpolated in this object's center. Measured on y-band.
y_pixelFlags_edge boolean Deprecated; only set when there is no y-band data.
y_pixelFlags_inexact_psf boolean The PSF model is discontinuous in this object's footprint. Measured on y-band.
y_pixelFlags_inexact_psfCenter boolean The PSF model is discontinuosu near this object's center. Measured on y-band.
y_pixelFlags_interpolated boolean An interpolated pixel contributed to the coadd in this object's footprint. Measured on y-band.
y_pixelFlags_interpolatedCenter boolean An interpolated pixel contributed to the coadd near this object's center. Measured on y-band.
y_pixelFlags_nodata boolean No pixel data was available in this band for this object. Measured on y-band.
y_pixelFlags_offimage boolean Deprecated; only set when there is no y-band data.
y_pixelFlags_saturated boolean Saturated pixels were rejected from this object's footprint, but would otherwise have contributed more than 10% of at least one pixel. Measured on y-band.
y_pixelFlags_saturatedCenter boolean Saturated pixels were rjected from near this object's center, but would otherwise have contributed more than 10% of at least one pixel. Measured on y-band.
y_pixelFlags_sensor_edge boolean A detector boundary passed through this object's footprint. Measured on y-band.
y_pixelFlags_sensor_edgeCenter boolean A detector boundary passed close to this object's center. Measured on y-band.
y_pixelFlags_suspect boolean Deprecated; only set when there is no y-band data.
y_pixelFlags_suspectCenter boolean Deprecated; only set when there is no y-band data.
y_extendedness_flag boolean Flag set for any failure in the flux-ratio extendedness. Measured on y-band.
y_sizeExtendedness_flag boolean Flag set for any failure in the moments-based extendedness. Measured on y-band.
y_invalidPsfFlag boolean This object has an invalid PSF (usually no inputs). Measured on y-band.
y_calib_astrometry_used boolean Propagated from sources. Measured on y-band.
y_calib_photometry_used boolean Propagated from sources. Measured on y-band.
y_calib_psf_candidate boolean Propagated from sources. Measured on y-band.
y_calib_psf_reserved boolean Propagated from sources. Measured on y-band.
y_calib_psf_used boolean Propagated from sources. Measured on y-band.
y_apFlux_flag boolean Duplicate of y_ap12Flux_flag.
y_apFlux_flag_apertureTruncated boolean Duplicate of y_ap12Flux_flag_apertureTruncated.
y_apFlux_flag_sincCoeffsTruncated boolean Duplicate of y_ap12Flux_flag_sincCoeffsTruncated. Measured on y-band.
y_centroid_flag boolean Flag set for any failure in the centroid algorithm. Measured on y-band.
y_kronFlux_flag boolean Flag set for any failure in the Kron photometry. Measured on y-band.
y_kronFlux_flag_bad_radius boolean Bad Kron radius. Measured on y-band.
y_kronFlux_flag_bad_shape boolean Shape for measuring Kron radius is bad; used PSF shape. Measured on y-band.
y_kronFlux_flag_bad_shape_no_psf boolean Bad shape and no PSF. Measured on y-band.
y_kronFlux_flag_edge boolean Bad measurement due to image edge. Measured on y-band.
y_kronFlux_flag_no_fallback_radius boolean No minimum radius and no PSF provided. Measured on y-band.
y_kronFlux_flag_no_minimum_radius boolean Minimum radius could not enforced, no minimum value or PSF. Measured on y-band.
y_kronFlux_flag_small_radius boolean Measured Kron radius was smaller than that of the PSF. Measured on y-band.
y_kronFlux_flag_used_minimum_radius boolean Used the minimum radius for the Kron radius. Measured on y-band.
y_kronFlux_flag_used_psf_radius boolean Kron radius fell back to being derived from the PSF radius. Measured on y-band.
g_epoch double d Mean epoch of the object in the g-band coadd in MJD TAI
i_epoch double d Mean epoch of the object in the i-band coadd in MJD TAI
r_epoch double d Mean epoch of the object in the r-band coadd in MJD TAI
u_epoch double d Mean epoch of the object in the u-band coadd in MJD TAI
y_epoch double d Mean epoch of the object in the y-band coadd in MJD TAI
z_epoch double d Mean epoch of the object in the z-band coadd in MJD TAI
parentObjectId long Unique ID of parent source. Reference band. 1
coord_ra double deg Fiducial ICRS Right Ascension of centroid used for database indexing pos.eq.ra;meta.main 1
coord_dec double deg Fiducial ICRS Declination of centroid used for database indexing pos.eq.dec;meta.main 1
coord_raErr float deg Error in fiducial ICRS Right Ascension of centroid stat.error;pos.eq.ra;meta.main
coord_decErr float deg Error in fiducial ICRS Declination of centroid stat.error;pos.eq.dec;meta.main
coord_ra_dec_Cov float deg**2 Covariance between fiducial ICRS Right Ascension and Declination of centroid stat.covariance;pos.eq.ra;pos.eq.dec;meta.main
coord_flag boolean General Failure Flag. Reference band.
refBand char Reference band - parameters measured on coadds of this band were used for multi-band forced photometry 1
refExtendedness float Flux-ratio measure of whether an object is point-like (0) or extended (1). Reference band. 1
refSizeExtendedness float Moments-based measure of whether an object is point-like (0) or extended (1). Reference band. 1
footprintArea int pixel Number of pixels in the sources detection footprint. Reference band.
ebv float mag E(B-V) at coord_ra/coord_dec per Schlegel, Finkbeiner & Davis (1998)
shape_xx float pixel**2 Gaussian-weighted adaptive moments. Reference band. 1
shape_yy float pixel**2 Gaussian-weighted adaptive moments. Reference band. 1
shape_xy float pixel**2 Gaussian-weighted adaptive moments. Reference band. 1
detect_isIsolated boolean This source is not a part of a blend. 1
detect_fromBlend boolean This source is deblended from a parent with more than one child. 1
detect_isDeblendedModelSource boolean True if source has no children and is in the inner region of a coadd patch and is in the inner region of a coadd tract and is not detected in a pseudo-filter (see config.pseudoFilterList) and is a deblended child
deblend_parentNChild int Number of children in deblended from the parent footprint. 1
deblend_parentNPeaks int Number of peaks the parent footprint has (even if the deblender failed or skipped this blend)
deblend_peak_center_x int pixel x-coordinate of the peak after source detection
deblend_peak_center_y int pixel y-coordinate of the peak after source detection
deblend_chi2 float Chi^2 of the source after deblending.
deblend_blendId long Unique ID of the deconvolved parent source that this source was deblended from.
deblend_blendNChild int Number of children in the deconvolved parent source that this source was deblended from.
shape_flag boolean General failure flag, set if anything went wrong. Reference band.
exponential_ra double deg Centroid (right ascension) from the multiband exponential model fit. pos.eq.ra
exponential_raErr float deg Error on the centroid (right ascension) from the multiband exponential model fit. stat.error;pos.eq.ra
exponential_dec double deg Centroid (declination) from the multiband exponential model fit. pos.eq.dec
exponential_decErr float deg Error on the centroid (declination) from the multiband exponential model fit. stat.error;pos.eq.dec
exponential_ra_dec_Cov float deg**2 Covariance between right ascension and declination from the multiband exponential model fit. stat.covariance;pos.eq.ra;pos.eq.dec
exponential_reff_x float pixel Effective radius (x-axis) from the multiband exponential model fit, prior to convolution with the PSF model (which is shrunk by 0.1 pixels in quadrature by default).
exponential_reff_xErr float pixel Error on the effective radius (x-axis) from the multiband exponential model fit.
exponential_reff_y float pixel Effective radius (y-axis) from the multiband exponential model fit, prior to convolution with the PSF model (which is shrunk by 0.1 pixels in quadrature by default).
exponential_reff_yErr float pixel Error on the effective radius (y-axis) from the multiband exponential model fit.
exponential_rho float Ellipse rho (correlation coefficient) from the multiband exponential model fit.
exponential_rhoErr float Error on ellipse rho (correlation coefficient) from the multiband exponential model fit.
exponential_reff_major float arcsec Effective radius (major axis) from the multiband Sersic model fit, prior to convolution with the PSF model (which is shrunk by 0.1 pixels in quadrature by default).
exponential_reff_minor float arcsec Effective radius (minor axis) from the multiband Sersic model fit, prior to convolution with the PSF model (which is shrunk by 0.1 pixels in quadrature by default).
exponential_theta float Position angle of the multiband Sersic fit ellipse.
g_exponentialFlux float nJy g-band flux from the multiband exponential model fit.
g_exponentialFluxErr float nJy Error on the g-band flux from the multiband exponential model fit.
i_exponentialFlux float nJy i-band flux from the multiband exponential model fit.
i_exponentialFluxErr float nJy Error on the i-band flux from the multiband exponential model fit.
r_exponentialFlux float nJy r-band flux from the multiband exponential model fit.
r_exponentialFluxErr float nJy Error on the r-band flux from the multiband exponential model fit.
u_exponentialFlux float nJy u-band flux from the multiband exponential model fit.
u_exponentialFluxErr float nJy Error on the u-band flux from the multiband exponential model fit.
y_exponentialFlux float nJy y-band flux from the multiband exponential model fit.
y_exponentialFluxErr float nJy Error on the y-band flux from the multiband exponential model fit.
z_exponentialFlux float nJy z-band flux from the multiband exponential model fit.
z_exponentialFluxErr float nJy Error on the z-band flux from the multiband exponential model fit.
exponential_n_eval_jac int Number of Jacobian evaluations for the multiband exponential model fit.
exponential_n_iter int Number of iterations in the non-linear fit for the multiband exponential model.
exponential_chi2_reduced float Reduced chi-squared of the best-fit model parameters (chi divided the number of data points) for the multiband exponential model.
exponential_delta_lnL_fit_linear float The ln-likelihood of the best model non-linear fit parameters minus the ln-likelihood of a subsequent linear least squares fit.
exponential_delta_lnL_fit_ps float The ln-likelihood of the best-fit exponential model minus the ln-likelihood of a point source with the same centroid and PSF model.
exponential_no_data_flag boolean Flag set when there is insufficient data to fit for the multiband exponential model.
exponential_unknown_flag boolean Flag set for failures with an unexpected or unknown cause for the multiband exponential model.
sersic_ra double deg Centroid (right ascension) from the multiband Sersic model fit. pos.eq.ra
sersic_raErr float deg Error on the centroid (right ascension) from the multiband Sersic model fit. stat.error;pos.eq.ra
sersic_dec double deg Centroid (declination) from the multiband Sersic model fit. pos.eq.dec
sersic_decErr float deg Error on the centroid (declination) from the multiband Sersic model fit. stat.error;pos.eq.dec
sersic_ra_dec_Cov float deg**2 Covariance between right ascension and declination from the multiband Sersic model fit. stat.covariance;pos.eq.ra;pos.eq.dec
sersic_reff_x float pixel Effective radius (x-axis) from the multiband Sersic model fit, prior to convolution with the PSF model (which is shrunk by 0.1 pixels in quadrature by default).
sersic_reff_xErr float pixel Error on the effective radius (x-axis) from the multiband Sersic model fit.
sersic_reff_y float pixel Effective radius (y-axis) from the multiband Sersic model fit, prior to convolution with the PSF model (which is shrunk by 0.1 pixels in quadrature by default).
sersic_reff_yErr float pixel Error on the effective radius (y-axis) from the multiband Sersic model fit.
sersic_rho float Ellipse rho (correlation coefficient) from the multiband Sersic model fit.
sersic_rhoErr float Error on ellipse rho (correlation coefficient) from the multiband Sersic model fit.
sersic_reff_major float arcsec Effective radius (major axis) from the multiband Sersic model fit, prior to convolution with the PSF model (which is shrunk by 0.1 pixels in quadrature by default).
sersic_reff_minor float arcsec Effective radius (minor axis) from the multiband Sersic model fit, prior to convolution with the PSF model (which is shrunk by 0.1 pixels in quadrature by default).
sersic_theta float Position angle of the multiband Sersic fit ellipse.
g_sersicFlux float nJy g-band flux from the multiband Sersic model fit.
g_sersicFluxErr float nJy Error on the g-band flux from the multiband Sersic model fit.
i_sersicFlux float nJy i-band flux from the multiband Sersic model fit.
i_sersicFluxErr float nJy Error on the i-band flux from the multiband Sersic model fit.
r_sersicFlux float nJy r-band flux from the multiband Sersic model fit.
r_sersicFluxErr float nJy Error on the r-band flux from the multiband Sersic model fit.
u_sersicFlux float nJy u-band flux from the multiband Sersic model fit.
u_sersicFluxErr float nJy Error on the u-band flux from the multiband Sersic model fit.
y_sersicFlux float nJy y-band flux from the multiband Sersic model fit.
y_sersicFluxErr float nJy Error on the y-band flux from the multiband Sersic model fit.
z_sersicFlux float nJy z-band flux from the multiband Sersic model fit.
z_sersicFluxErr float nJy Error on the z-band flux from the multiband Sersic model fit.
sersic_index float Sersic profile index parameter from the multiband Sersic model fit.
sersic_indexErr float Error on the Sersic profile index parameter from the multiband Sersic model fit.
sersic_n_eval_jac int Number of Jacobian evaluations for the multiband Sersic model fit.
sersic_n_iter int Number of iterations in the non-linear fit for the multiband Sersic model.
sersic_chi2_reduced float Reduced chi-squared of the best-fit model parameters (chi divided the number of data points) for the multiband Sersic model.
sersic_unknown_flag boolean Flag set for failures with an unexpected or unknown cause for the multiband Sersic model.
sersic_no_data_flag boolean Flag set when there is insufficient data to fit for the multiband Sersic model.
objectId long Unique id. Unique ObjectID meta.id;src 1

Source

Properties of detections on the single-epoch visit images, performed independently of the Object detections on coadded images.

Column Name Data Type Unit Description UCD Order Principal
coord_ra double deg Fiducial ICRS Right Ascension of centroid used for database indexing pos.eq.ra;meta.main
coord_dec double deg Fiducial ICRS Declination of centroid used for database indexing pos.eq.dec;meta.main
parentSourceId long Unique ID of parent source
x double pixel Centroid from Sdss Centroid algorithm
y double pixel Centroid from Sdss Centroid algorithm
xErr float pixel 1-sigma uncertainty on x position
yErr float pixel 1-sigma uncertainty on y position
ra double deg Position in right ascension. pos.eq.ra
dec double deg Position in declination. pos.eq.dec
raErr float deg Error in right ascension. stat.error;pos.eq.ra
decErr float deg Error in declination. stat.error;pos.eq.dec
ra_dec_Cov float deg**2 Covariance between right ascension and declination. stat.covariance;pos.eq.ra;pos.eq.dec
calibFlux double nJy Flux within 12.0-pixel aperture
calibFluxErr double nJy Flux uncertainty within 12.0-pixel aperture
ap03Flux double nJy Flux within 3.0-pixel aperture
ap03FluxErr double nJy Flux uncertainty within 3.0-pixel aperture
ap03Flux_flag boolean General Failure Flag
ap06Flux double nJy Flux within 6.0-pixel aperture
ap06FluxErr double nJy Flux uncertainty within 6.0-pixel aperture
ap06Flux_flag boolean General Failure Flag
ap09Flux double nJy Flux within 9.0-pixel aperture
ap09FluxErr double nJy Flux uncertainty within 9.0-pixel aperture
ap09Flux_flag boolean General Failure Flag
ap12Flux double nJy Flux within 12.0-pixel aperture
ap12FluxErr double nJy Flux uncertainty within 12.0-pixel aperture
ap12Flux_flag boolean General Failure Flag
ap17Flux double nJy Flux within 17.0-pixel aperture
ap17FluxErr double nJy Flux uncertainty within 17.0-pixel aperture
ap17Flux_flag boolean General Failure Flag
ap25Flux double nJy Flux within 25.0-pixel aperture
ap25FluxErr double nJy Flux uncertainty within 25.0-pixel aperture
ap25Flux_flag boolean General Failure Flag
ap35Flux double nJy Flux within 35.0-pixel aperture
ap35FluxErr double nJy Flux uncertainty within 35.0-pixel aperture
ap35Flux_flag boolean General Failure Flag
ap50Flux double nJy Flux within 50.0-pixel aperture
ap50FluxErr double nJy Flux uncertainty within 50.0-pixel aperture
ap50Flux_flag boolean General Failure Flag
ap70Flux double nJy Flux within 70.0-pixel aperture
ap70FluxErr double nJy Flux uncertainty within 70.0-pixel aperture
ap70Flux_flag boolean General Failure Flag
sky double nJy Background in annulus around source
skyErr double nJy Background in annulus around source
psfFlux double nJy Flux derived from linear least-squares fit of psf model forced on the calexp
psfFluxErr double nJy Uncertainty on the flux derived from linear least-squares fit of psf model forced on the calexp
ixx double pixel**2 HSM moments
iyy double pixel**2 HSM moments
ixy double pixel**2 HSM moments
ixxPSF double pixel**2 HSM moments
iyyPSF double pixel**2 HSM moments
ixyPSF double pixel**2 HSM moments
ixxDebiasedPSF double pixel**2 HSM moments
iyyDebiasedPSF double pixel**2 HSM moments
ixyDebiasedPSF double pixel**2 HSM moments
gaussianFlux double nJy Flux from Gaussian Flux algorithm
gaussianFluxErr double nJy Flux uncertainty from Gaussian Flux algorithm
extendedness double Flux-ratio measure of whether an object is point-like (0) or extended (1).
sizeExtendedness double Moments-based measure of a source to be a galaxy.
blendedness_abs double Measure of how much the flux is affected by neighbors, (1 - child_flux/parent_flux). Operates on the absolute value of the pixels to try to obtain a de-noised value. See section 4.9.11 of Bosch et al. 2018, PASJ, 70, S5 for details.
blendedness_flag boolean General Failure Flag
blendedness_flag_noCentroid boolean Object has no centroid
blendedness_flag_noShape boolean Object has no shape
apFlux_12_0_flag boolean General Failure Flag
apFlux_12_0_flag_apertureTruncated boolean Aperture did not fit within measurement image
apFlux_12_0_flag_sincCoeffsTruncated boolean Full sinc coefficient image did not fit within measurement image
apFlux_12_0_instFlux double count Flux within 12.0-pixel aperture
apFlux_12_0_instFluxErr double count 1-sigma flux uncertainty
apFlux_17_0_flag boolean General Failure Flag
apFlux_17_0_instFlux double count Flux within 17.0-pixel aperture
apFlux_17_0_instFluxErr double count 1-sigma flux uncertainty
apFlux_35_0_flag boolean General Failure Flag
apFlux_35_0_instFlux double count Flux within 35.0-pixel aperture
apFlux_35_0_instFluxErr double count 1-sigma flux uncertainty
apFlux_50_0_flag boolean General Failure Flag
apFlux_50_0_instFlux double count Flux within 50.0-pixel aperture
apFlux_50_0_instFluxErr double count 1-sigma flux uncertainty
normCompTophatFlux_flag boolean General failure flag for normCompTophatFlux.
normCompTophatFlux_instFlux double count Normalized compensated tophat flux for calibration
normCompTophatFlux_instFluxErr double count 1-sigma flux uncertainty on normCompTophatFlux_instFlux
extendedness_flag boolean Set to 1 for any fatal failure.
sizeExtendedness_flag boolean Set to 1 for any fatal failure.
footprintArea_value int pixel Number of pixels in the sources detection footprint.
invalidPsfFlag boolean Source has an invalid psf.
jacobian_flag boolean Set to 1 for any fatal failure
jacobian_value double Jacobian correction
localBackground_instFlux double count Background in annulus around source
localBackground_instFluxErr double count 1-sigma flux uncertainty
localBackground_flag boolean General Failure Flag
localBackground_flag_noGoodPixels boolean No good pixels in the annulus
localBackground_flag_noPsf boolean No PSF provided
pixelFlags_bad boolean Bad pixel in the Source footprint
pixelFlags_cr boolean Cosmic ray in the Source footprint
pixelFlags_crCenter boolean Cosmic ray in the Source center
pixelFlags_edge boolean Source is on the edge of an exposure region (masked EDGE)
pixelFlags_interpolated boolean Interpolated pixel in the Source footprint
pixelFlags_interpolatedCenter boolean Interpolated pixel in the Source center
pixelFlags_nodata boolean Source is outside usable exposure region (masked NO_DATA)
pixelFlags_offimage boolean Source center is off image
pixelFlags_saturated boolean Saturated pixel in the Source footprint
pixelFlags_saturatedCenter boolean Saturated pixel in the Source center
pixelFlags_suspect boolean Sources footprint includes suspect pixels
pixelFlags_suspectCenter boolean Sources center is close to suspect pixels
psfFlux_apCorr double Aperture correction applied to base_PsfFlux
psfFlux_apCorrErr double Standard deviation of aperture correction applied to base_PsfFlux
psfFlux_area float pixel Effective area of PSF
psfFlux_flag boolean Failure to derive linear least-squares fit of psf model forced on the calexp
psfFlux_flag_apCorr boolean Set if unable to aperture correct base_PsfFlux
psfFlux_flag_edge boolean Object was too close to the edge of the image to use the full PSF model
psfFlux_flag_noGoodPixels boolean Not enough non-rejected pixels in data to attempt the fit
gaussianFlux_flag boolean General Failure Flag
centroid_flag boolean General Failure Flag
centroid_flag_almostNoSecondDerivative boolean Almost vanishing second derivative
centroid_flag_badError boolean Error on x and/or y position is NaN
centroid_flag_edge boolean Object too close to edge
centroid_flag_noSecondDerivative boolean Vanishing second derivative
centroid_flag_notAtMaximum boolean Object is not at a maximum
centroid_flag_resetToPeak boolean Set if CentroidChecker reset the centroid
variance_flag boolean Set for any fatal failure
variance_flag_emptyFootprint boolean Set to True when the footprint has no usable pixels
variance_value double Variance at object position
calib_astrometry_used boolean Set if source was used in astrometric calibration
calib_photometry_reserved boolean Set if source was reserved from photometric calibration
calib_photometry_used boolean Set if source was used in photometric calibration
calib_psf_candidate boolean Flag set if the source was a candidate for PSF determination, as determined by the star selector.
calib_psf_reserved boolean Set if source was reserved from PSF determination
calib_psf_used boolean Flag set if the source was actually used for PSF determination, as determined by the
deblend_deblendedAsPsf boolean Deblender thought this source looked like a PSF
deblend_hasStrayFlux boolean This source was assigned some stray flux
deblend_masked boolean Parent footprint was predominantly masked
deblend_nChild int Number of children this object has (defaults to 0)
deblend_parentTooBig boolean Parent footprint covered too many pixels
deblend_patchedTemplate boolean This source was near an image edge and the deblender used patched edge-handling.
deblend_rampedTemplate boolean This source was near an image edge and the deblender used ramp edge-handling.
deblend_skipped boolean Deblender skipped this source
deblend_tooManyPeaks boolean Source had too many peaks; only the brightest were included
hsmPsfMoments_flag boolean General failure flag, set if anything went wrong
hsmPsfMoments_flag_no_pixels boolean No pixels to measure
hsmPsfMoments_flag_not_contained boolean Center not contained in footprint bounding box
hsmPsfMoments_flag_parent_source boolean Parent source, ignored
iDebiasedPSF_flag boolean General failure flag, set if anything went wrong
iDebiasedPSF_flag_no_pixels boolean No pixels to measure
iDebiasedPSF_flag_not_contained boolean Center not contained in footprint bounding box
iDebiasedPSF_flag_parent_source boolean Parent source, ignored
iDebiasedPSF_flag_galsim boolean GalSim failure
iDebiasedPSF_flag_edge boolean Variance undefined outside image edge
hsmShapeRegauss_flag boolean General failure flag, set if anything went wrong
hsmShapeRegauss_flag_galsim boolean GalSim failure
hsmShapeRegauss_flag_no_pixels boolean No pixels to measure
hsmShapeRegauss_flag_not_contained boolean Center not contained in footprint bounding box
hsmShapeRegauss_flag_parent_source boolean Parent source, ignored
sky_source boolean Sky objects.
visit long Id of the visit where this source was measured. meta.id;obs.image
detector short Id of the detector where this source was measured. meta.id;obs.image
band char Name of the band used to take the exposure where this source was measured. Abstract filter that is not associated with a particular instrument
physical_filter char ID of physical filter, the filter associated with a particular instrument.
sourceId long Unique id. Unique Source ID. Primary Key. meta.id;src

ForcedSource

Forced-photometry measurements on individual single-epoch visit images and difference images, based on and linked to the entries in the Object table. Point-source PSF photometry is performed, based on coordinates from a reference band chosen for each Object and reported in the Object.refBand column.

Column Name Data Type Unit Description UCD Order Principal
objectId long Unique Object ID. Primary Key of the Object Table 1
parentObjectId long Unique ObjectId of the parent of the ObjectId in context of the deblender.
coord_ra double deg Fiducial ICRS Right Ascension of centroid used for database indexing pos.eq.ra;meta.main
coord_dec double deg Fiducial ICRS Declination of centroid used for database indexing pos.eq.dec;meta.main
visit long Id of the visit where this source was measured. meta.id;obs.image 1
detector short Id of the detector where this source was measured. meta.id;obs.image 1
band char Abstract filter that is not associated with a particular instrument 1
psfFlux float nJy Flux derived from linear least-squares fit of psf model forced on the calexp 1
psfFluxErr float nJy Uncertainty on the flux derived from linear least-squares fit of psf model forced on the calexp 1
psfFlux_flag boolean Failure to derive linear least-squares fit of psf model forced on the calexp
psfDiffFlux float nJy Flux derived from linear least-squares fit of psf model forced on the image difference 1
psfDiffFluxErr float nJy Uncertainty on the flux derived from linear least-squares fit of psf model forced on the image difference 1
psfDiffFlux_flag boolean Failure to derive linear least-squares fit of psf model forced on the image difference
diff_PixelFlags_nodataCenter boolean Source center is outside usable region on image difference (masked NO_DATA)
pixelFlags_bad boolean Bad pixel in the Source footprint
pixelFlags_cr boolean Cosmic ray in the Source footprint
pixelFlags_crCenter boolean Cosmic ray in the Source center
pixelFlags_edge boolean Source is on the edge of an exposure region (masked EDGE)
pixelFlags_interpolated boolean Interpolated pixel in the Source footprint
pixelFlags_interpolatedCenter boolean Interpolated pixel in the Source center
pixelFlags_nodata boolean Source is outside usable exposure region (masked NO_DATA)
pixelFlags_saturated boolean Saturated pixel in the Source footprint
pixelFlags_saturatedCenter boolean Saturated pixel in the Source center
pixelFlags_suspect boolean Sources footprint includes suspect pixels
pixelFlags_suspectCenter boolean Sources center is close to suspect pixels
invalidPsfFlag boolean Source has an invalid PSF.
tract long Skymap tract ID
patch long Skymap patch ID

DiaObject

Properties of time-varying astronomical objects based on association of data from one or more spatially-related DiaSource detections on individual single-epoch difference images.

Column Name Data Type Unit Description UCD Order Principal
diaObjectId long Unique identifier of this DiaObject. meta.id;src
ra double deg Right Ascension coordinate of the position of the DiaObject. pos.eq.ra;meta.main
dec double deg Declination coordinate of the position of the DiaObject. pos.eq.dec;meta.main
u_psfFluxMean double nJy Weighted mean point-source model magnitude for u filter. phot.count
u_psfFluxMeanErr double nJy Standard error of u_psfFluxMean. stat.error
u_psfFluxSigma double nJy Standard deviation of the distribution of u_psfFlux. stat.stdev
u_psfFluxNdata int The number of u-band data points.
g_psfFluxMean double nJy Weighted mean point-source model magnitude for g filter. phot.count
g_psfFluxMeanErr double nJy Standard error of g_psfFluxMean. stat.error
g_psfFluxSigma double nJy Standard deviation of the distribution of g_psfFlux. stat.stdev
g_psfFluxNdata int The number of g-band data points.
r_psfFluxMean double nJy Weighted mean point-source model magnitude for r filter. phot.count
r_psfFluxMeanErr double nJy Standard error of r_psfFluxMean. stat.error
r_psfFluxSigma double nJy Standard deviation of the distribution of r_psfFlux. stat.stdev
r_psfFluxNdata int The number of r-band data points.
i_psfFluxMean double nJy Weighted mean point-source model magnitude for i filter. phot.count
i_psfFluxMeanErr double nJy Standard error of i_psfFluxMean. stat.error
i_psfFluxSigma double nJy Standard deviation of the distribution of i_psfFlux. stat.stdev
i_psfFluxNdata int The number of i-band data points.
z_psfFluxMean double nJy Weighted mean point-source model magnitude for z filter. phot.count
z_psfFluxMeanErr double nJy Standard error of z_psfFluxMean. stat.error
z_psfFluxSigma double nJy Standard deviation of the distribution of z_psfFlux. stat.stdev
z_psfFluxNdata int The number of z-band data points.
y_psfFluxMean double nJy Weighted mean point-source model magnitude for y filter. phot.count
y_psfFluxMeanErr double nJy Standard error of y_psfFluxMean. stat.error
y_psfFluxSigma double nJy Standard deviation of the distribution of y_psfFlux. stat.stdev
y_psfFluxNdata int The number of y-band data points.
u_scienceFluxMean double nJy Weighted mean forced photometry flux for u filter. phot.count
u_scienceFluxMeanErr double nJy Standard error of u_scienceFluxMean. stat.error
g_scienceFluxMean double nJy Weighted mean forced photometry flux for g filter. phot.count
g_scienceFluxMeanErr double nJy Standard error of g_scienceFluxMean. stat.error
r_scienceFluxMean double nJy Weighted mean forced photometry flux for r filter. phot.count
r_scienceFluxMeanErr double nJy Standard error of r_scienceFluxMean. stat.error
i_scienceFluxMean double nJy Weighted mean forced photometry flux for i filter. phot.count
i_scienceFluxMeanErr double nJy Standard error of i_scienceFluxMean. stat.error
z_scienceFluxMean double nJy Weighted mean forced photometry flux for z filter. phot.count
z_scienceFluxMeanErr double nJy Standard error of z_scienceFluxMean. stat.error
y_scienceFluxMean double nJy Weighted mean forced photometry flux for y filter. phot.count
y_scienceFluxMeanErr double nJy Standard error of y_scienceFluxMean. stat.error
u_psfFluxMin double nJy Minimum observed u band fluxes.
u_psfFluxMax double nJy Maximum observed u band fluxes.
u_psfFluxMaxSlope double nJy/d Maximum slope between u band flux obsevations max(delta_flux/delta_time).
u_psfFluxErrMean float nJy Mean of the u band flux errors.
g_psfFluxMin double nJy Minimum observed g band fluxes.
g_psfFluxMax double nJy Maximum observed g band fluxes.
g_psfFluxMaxSlope double nJy/d Maximum slope between g band flux obsevations max(delta_flux/delta_time).
g_psfFluxErrMean float nJy Mean of the g band flux errors.
r_psfFluxMin double nJy Minimum observed r band fluxes.
r_psfFluxMax double nJy Maximum observed r band fluxes.
r_psfFluxMaxSlope double nJy/d Maximum slope between r band flux obsevations max(delta_flux/delta_time).
r_psfFluxErrMean float nJy Mean of the r band flux errors.
i_psfFluxMin double nJy Minimum observed i band fluxes.
i_psfFluxMax double nJy Maximum observed i band fluxes.
i_psfFluxMaxSlope double nJy/d Maximum slope between i band flux obsevations max(delta_flux/delta_time).
i_psfFluxErrMean float nJy Mean of the i band flux errors.
z_psfFluxMin double nJy Minimum observed z band fluxes.
z_psfFluxMax double nJy Maximum observed z band fluxes.
z_psfFluxMaxSlope double nJy/d Maximum slope between z band flux obsevations max(delta_flux/delta_time).
z_psfFluxErrMean float nJy Mean of the z band flux errors.
y_psfFluxMin double nJy Minimum observed y band fluxes.
y_psfFluxMax double nJy Maximum observed y band fluxes.
y_psfFluxMaxSlope double nJy/d Maximum slope between y band flux obsevations max(delta_flux/delta_time).
y_psfFluxErrMean float nJy Mean of the y band flux errors.
nDiaSources long Total number of DiaSources associated with this DiaObject.

DiaSource

Properties of transient-object detections on the single-epoch difference images.

Column Name Data Type Unit Description UCD Order Principal
diaSourceId long Unique identifier of this DiaSource. meta.id;obs.image
visit long Id of the visit where this diaSource was measured. meta.id;obs.image
detector short Id of the detector where this diaSource was measured. meta.id;obs.image
diaObjectId long Id of the diaObject this source was associated with, if any. If not, it is set to 0 meta.id;src
ssObjectId long Id of the ssObject this source was associated with, if any. If not, it is set to 0 meta.id;src
parentDiaSourceId long Id of the parent diaSource this diaSource has been deblended from, if any. meta.id;src
midpointMjdTai double d Effective mid-visit time for this diaSource, expressed as Modified Julian Date, International Atomic Time. time.epoch
coord_dec double deg Fiducial ICRS Declination of centroid used for database indexing. pos.eq.dec;meta.main
coord_ra double deg Fiducial ICRS Right Ascension of centroid used for database indexing. pos.eq.ra;meta.main
ra double deg Right ascension coordinate of the center of this diaSource. pos.eq.ra
dec double deg Declination coordinate of the center of this diaSource. pos.eq.dec
raErr float deg Error in right ascension. stat.error;pos.eq.ra
decErr float deg Error in declination. stat.error;pos.eq.dec
ra_dec_Cov float deg**2 Covariance between right ascension and declination. stat.covariance;pos.eq.ra;pos.eq.dec
x double pixel Unweighted first moment centroid, overall centroid. pos.cartesian.x
xErr float pixel 1-sigma uncertainty on x position. stat.error;pos.cartesian.x
y double pixel Unweighted first moment centroid, overall centroid. pos.cartesian.y
yErr float pixel 1-sigma uncertainty on y position. stat.error;pos.cartesian.y
centroid_flag boolean General centroid algorithm failure flag; set if anything went wrong when fitting the centroid. Another centroid flag field should also be set to provide more information.
apFlux float nJy Flux in a 12 pixel radius aperture on the difference image. phot.count
apFluxErr float nJy Estimated uncertainty of apFlux. stat.error;phot.count
apFlux_flag boolean General aperture flux algorithm failure flag; set if anything went wrong when measuring aperture fluxes. Another apFlux flag field should also be set to provide more information.
apFlux_flag_apertureTruncated boolean Aperture did not fit within measurement image.
isNegative boolean Source was detected as significantly negative.
snr double The signal-to-noise ratio at which this source was detected in the difference image. Ratio of apFlux/apFluxErr. stat.snr
psfFlux float nJy Flux for Point Source model. Note this actually measures the flux difference between the template and the visit image. phot.count
psfFluxErr float nJy Uncertainty of psfFlux.
psfChi2 float Chi^2 statistic of the point source model fit. stat.fit.chi2
psfNdata int pixel The number of data points (pixels) used to fit the point source model.
psfFlux_flag boolean Failure to derive linear least-squares fit of psf model. Another psfFlux flag field should also be set to provide more information.
psfFlux_flag_edge boolean Object was too close to the edge of the image to use the full PSF model.
psfFlux_flag_noGoodPixels boolean Not enough non-rejected pixels in data to attempt the fit.
trailFlux float nJy Flux for a trailed source model. Note this actually measures the flux difference between the template and the visit image.
trailFluxErr float nJy Uncertainty of trailFlux.
trailRa double deg Right ascension coordinate of centroid for trailed source model. pos.eq.ra
trailDec double deg Declination coordinate of centroid for trailed source model. pos.eq.dec
trailLength double arcsec Maximum likelihood fit of trail length.
trailAngle double deg Maximum likelihood fit of the angle between the meridian through the centroid and the trail direction (bearing).
trail_flag_edge boolean This flag is set if a trailed source extends onto or past edge pixels.
dipoleMeanFlux double nJy Maximum likelihood value for the mean absolute flux of the two lobes for a dipole model.
dipoleMeanFluxErr double nJy Uncertainty of dipoleMeanFlux. stat.error
dipoleFluxDiff double nJy Maximum likelihood value for the difference of absolute fluxes of the two lobes for a dipole model.
dipoleFluxDiffErr double nJy Uncertainty of dipoleFluxDiff. stat.error
dipoleLength double arcsec Maximum likelihood value for the lobe separation in dipole model. pos.angDistance
dipoleAngle double deg Maximum likelihood fit of the angle between the meridian through the centroid and the dipole direction (bearing, from negative to positive lobe). pos.posAng
dipoleChi2 double Chi^2 statistic of the model fit. stat.fit.chi2
dipoleNdata long The number of data points (pixels) used to fit the model.
scienceFlux float nJy Forced photometry flux for a point source model measured on the visit image centered at DiaSource position. phot.count
scienceFluxErr float nJy Estimated uncertainty of scienceFlux. stat.error;phot.count
forced_PsfFlux_flag boolean Forced PSF photometry on science image failed. Another forced_PsfFlux flag field should also be set to provide more information.
forced_PsfFlux_flag_edge boolean Forced PSF flux on science image was too close to the edge of the image to use the full PSF model.
forced_PsfFlux_flag_noGoodPixels boolean Forced PSF flux not enough non-rejected pixels in data to attempt the fit.
templateFlux float nJy Forced photometry flux for a point source model measured on the template image centered at the DiaSource position. phot.count
templateFluxErr float nJy Uncertainty of templateFlux. stat.error;phot.count
ixx double nJy.arcsec**2 Adaptive second moment of the source intensity.
iyy double nJy.arcsec**2 Adaptive second moment of the source intensity.
ixy double nJy.arcsec**2 Adaptive second moment of the source intensity.
ixxPSF double nJy.arcsec**2 Adaptive second moment for the PSF.
iyyPSF double nJy.arcsec**2 Adaptive second moment for the PSF.
ixyPSF double nJy.arcsec**2 Adaptive second moment for the PSF.
shape_flag boolean General source shape algorithm failure flag; set if anything went wrong when measuring the shape. Another shape flag field should also be set to provide more information.
shape_flag_no_pixels boolean No pixels to measure shape.
shape_flag_not_contained boolean Center not contained in footprint bounding box.
shape_flag_parent_source boolean This source is a parent source; we should only be measuring on deblended children in difference imaging.
extendedness double A measure of extendedness, computed by comparing an object's moment-based trace radius to the PSF moments. extendedness = 1 implies a high degree of confidence that the source is extended. extendedness = 0 implies a high degree of confidence that the source is point-like.
reliability float Probability (0-1) that the diaSource is astrophysical, derived from a machine learning model.
band char Filter band this source was observed with.
isDipole boolean Source well fit by a dipole.
dipoleFitAttempted boolean Attempted to fit a dipole model to this source.
timeProcessedMjdTai double Time when the image was processed and this DiaSource record was generated, expressed as Modified Julian Date, International Atomic Time. time.epoch
bboxSize long pixel Size of the square bounding box that fully contains the detection footprint.
pixelFlags boolean General pixel flags failure; set if anything went wrong when setting pixels flags from this footprint's mask. This implies that some pixelFlags for this source may be incorrectly set to False.
pixelFlags_bad boolean Bad pixel in the DiaSource footprint.
pixelFlags_cr boolean Cosmic ray in the DiaSource footprint.
pixelFlags_crCenter boolean Cosmic ray in the 3x3 region around the centroid.
pixelFlags_edge boolean Some of the source footprint is outside usable exposure region (masked EDGE or centroid off image).
pixelFlags_nodata boolean NO_DATA pixel in the source footprint.
pixelFlags_nodataCenter boolean NO_DATA pixel in the 3x3 region around the centroid.
pixelFlags_interpolated boolean Interpolated pixel in the DiaSource footprint.
pixelFlags_interpolatedCenter boolean Interpolated pixel in the 3x3 region around the centroid.
pixelFlags_offimage boolean DiaSource center is off image.
pixelFlags_saturated boolean Saturated pixel in the DiaSource footprint.
pixelFlags_saturatedCenter boolean Saturated pixel in the 3x3 region around the centroid.
pixelFlags_suspect boolean DiaSource's footprint includes suspect pixels.
pixelFlags_suspectCenter boolean Suspect pixel in the 3x3 region around the centroid.
pixelFlags_streak boolean Streak in the DiaSource footprint.
pixelFlags_streakCenter boolean Streak in the 3x3 region around the centroid.
pixelFlags_injected boolean Injection in the DiaSource footprint.
pixelFlags_injectedCenter boolean Injection in the 3x3 region around the centroid.
pixelFlags_injected_template boolean Template injection in the DiaSource footprint.
pixelFlags_injected_templateCenter boolean Template injection in the 3x3 region around the centroid.
glint_trail boolean This flag is set if the source is part of a glint trail.

ForcedSourceOnDiaObject

Point-source forced-photometry measurements on individual single-epoch visit images and difference images, based on and linked to the entries in the DiaObject table.

Column Name Data Type Unit Description UCD Order Principal
diaObjectId long Id of the DiaObject that this DiaForcedSource was associated with. 1
parentObjectId long Unique ObjectId of the parent of the ObjectId in context of the deblender.
coord_ra double deg Fiducial ICRS Right Ascension of centroid used for database indexing pos.eq.ra;meta.main
coord_dec double deg Fiducial ICRS Declination of centroid used for database indexing pos.eq.dec;meta.main
visit long Id of the visit where this forced source was measured. meta.id;obs.image 1
detector short Id of the detector where this forced source was measured. meta.id;obs.image 1
band char Abstract filter that is not associated with a particular instrument 1
psfFlux float nJy Flux derived from linear least-squares fit of psf model forced on the calexp 1
psfFluxErr float nJy Uncertainty on the flux derived from linear least-squares fit of psf model forced on the calexp 1
psfFlux_flag boolean Failure to derive linear least-squares fit of psf model forced on the calexp
psfDiffFlux float nJy Flux derived from linear least-squares fit of psf model forced on the image difference 1
psfDiffFluxErr float nJy Uncertainty on the flux derived from linear least-squares fit of psf model forced on the image difference 1
psfDiffFlux_flag boolean Failure to derive linear least-squares fit of psf model forced on the image difference
diff_PixelFlags_nodataCenter boolean Source center is outside usable region on image difference (masked NO_DATA)
pixelFlags_bad boolean Bad pixel in the Source footprint
pixelFlags_cr boolean Cosmic ray in the Source footprint
pixelFlags_crCenter boolean Cosmic ray in the Source center
pixelFlags_edge boolean Source is on the edge of an exposure region (masked EDGE)
pixelFlags_interpolated boolean Interpolated pixel in the Source footprint
pixelFlags_interpolatedCenter boolean Interpolated pixel in the Source center
pixelFlags_nodata boolean Source is outside usable exposure region (masked NO_DATA)
pixelFlags_saturated boolean Saturated pixel in the Source footprint
pixelFlags_saturatedCenter boolean Saturated pixel in the Source center
pixelFlags_suspect boolean Sources footprint includes suspect pixels
pixelFlags_suspectCenter boolean Sources center is close to suspect pixels
invalidPsfFlag boolean Forced source has an invalid PSF.
tract long Skymap tract ID
patch long Skymap patch ID

CoaddPatches

Static information about the subset of tracts and patches from the standard LSST skymap that apply to coadds in these catalogs

Column Name Data Type Unit Description UCD Order Principal
lsst_tract long ID number of the top level, 'tract', within the standard LSST skymap meta.id;obs.field 1 1
lsst_patch long ID number of the second level, 'patch', within the standard LSST skymap meta.id.part;obs.field 2 1
s_ra double deg Central Spatial Position in ICRS; Right ascension pos.eq.ra 3 1
s_dec double deg Central Spatial Position in ICRS; Declination pos.eq.dec 4 1
s_region string Sky region covered by the coadd (expressed in ICRS frame) pos.outline;obs.field 5 1

Visit

Metadata about the pointings of the telescope, largely associated with the boresight of the LSSTComCam focal plane as a whole.

Column Name Data Type Unit Description UCD Order Principal
visit long Unique identifier. meta.id;obs.image 1
physical_filter char ID of physical filter, the filter associated with a particular instrument.
band char Name of the band used to take the visit where this source was measured. Abstract filter that is not associated with a particular instrument. 1
ra double deg Right Ascension of focal plane center. 1
dec double deg Declination of focal plane center 1
skyRotation double deg Sky rotation angle. 1
azimuth double deg Azimuth of focal plane center at the middle of the visit.
altitude double deg Altitude of focal plane center at the middle of the visit.
zenithDistance double deg Zenith distance at the middle of the visit.
airmass double Airmass of the observed line of sight. 1
expTime double s Spatially-averaged duration of visit, accurate to 10ms. 1
expMidpt timestamp Midpoint time for exposure at the fiducial center of the focal plane array. TAI, accurate to 10ms. 6
expMidptMJD double d Midpoint time for exposure at the fiducial center of the focal plane array in MJD. TAI, accurate to 10ms. time.epoch;obs.exposure 5 1
obsStart timestamp Start time of the visit at the fiducial center of the focal plane array, TAI, accurate to 10ms.
obsStartMJD double d Start of the exposure in MJD, TAI, accurate to 10ms. time.start;obs.exposure 7

CcdVisit

Per-detector metadata and metrics associated with each visit

Column Name Data Type Unit Description UCD Order Principal
physical_filter char ID of physical filter, the filter associated with a particular instrument.
band char Name of the band used to take the visit where this source was measured. Abstract filter that is not associated with a particular instrument. 1
ra double deg Right Ascension of Ccd center. 1
dec double deg Declination of Ccd center. 1
pixelScale float arcsec/pixel Measured detector pixel scale.
zenithDistance float deg Zenith distance at observation mid-point. 1
expTime double s Spatially-averaged duration of visit, accurate to 10ms. 1
zeroPoint float mag Zero-point for the Ccd, estimated at Ccd center.
psfSigma float pixel PSF model second-moments determinant radius (center of chip) 1
skyBg float adu Average sky background.
skyNoise float adu RMS noise of the sky background.
astromOffsetMean double arcsec Mean offset of astrometric calibration matches (arcsec)
astromOffsetStd double arcsec Standard deviation of offsets of astrometric calibration matches (arcsec)
nPsfStar int Number of stars used for PSF model
psfStarDeltaE1Median double Median E1 residual (starE1 - psfE1) for psf stars
psfStarDeltaE2Median double Median E2 residual (starE2 - psfE2) for psf stars
psfStarDeltaE1Scatter double Scatter (via MAD) of E1 residual (starE1 - psfE1) for psf stars
psfStarDeltaE2Scatter double Scatter (via MAD) of E2 residual (starE2 - psfE2) for psf stars
psfStarDeltaSizeMedian double pixel Median size residual (starSize - psfSize) for psf stars (pixel)
psfStarDeltaSizeScatter double pixel Scatter (via MAD) of size residual (starSize - psfSize) for stars (pixel)
psfStarScaledDeltaSizeScatter double Scatter (via MAD) of size residual scaled by median size squared
psfTraceRadiusDelta double pixel Delta (max - min) of model psf trace radius values evaluated on a grid of unmasked pixels (pixel)
psfApFluxDelta double Delta (max - min) of model psf aperture flux (with aperture radius of max(2, 3*psfSigma)) values evaluated on a grid of unmasked pixels
psfApCorrSigmaScaledDelta double Delta (max - min) of psf flux aperture correction factors scaled (divided) by the psfSigma evaluated on a grid of unmasked pixels
maxDistToNearestPsf double pixel Maximum distance of an unmasked pixel to its nearest model psf star (pixel)
starEMedian double Median ellipticity (sqrt(starE1**2.0 + starE2**2.0)) of the stars used in the PSF model.
starUnNormalizedEMedian double pixel**2 Median un-normalized ellipticity (sqrt((starXX - starYY)**2.0 + (2.0*starXY)**2.0)) of the stars used in the PSF model.
ccdVisitId long Primary key (unique identifier).
visitId long Reference to the corresponding entry in the Visit table. meta.id.parent;obs 2 1
detector long Detector ID. A detector associated with a particular instrument (not an observation of that detector). 1
seeing double arcsec Mean measured FWHM of the PSF. 1
skyRotation double deg Sky rotation angle.
expMidpt timestamp Midpoint time for exposure at the fiducial center of the focal plane array. TAI, accurate to 10ms. 6
expMidptMJD double d Midpoint time for exposure at the fiducial center of the focal plane array in MJD. TAI, accurate to 10ms. time.epoch;obs.exposure 5 1
obsStart timestamp Start of the visit, TAI, accurate to 10ms.
obsStartMJD double d Start of the exposure in MJD, TAI, accurate to 10ms. time.start;obs.exposure 7
darkTime double s Average dark current accumulation time, accurate to 10ms.
xSize long pixel Number of columns in the image.
ySize long pixel Number of rows in the image.
llcra double deg Right Ascension of lower left corner.
llcdec double deg Declination of lower left corner.
ulcra double deg Right Ascension of upper left corner.
ulcdec double deg Declination of upper left corner.
urcra double deg Right Ascension of upper right corner.
urcdec double deg Declination of upper right corner.
lrcra double deg Right Ascension of lower right corner.
lrcdec double deg Declination of lower right corner.
effTime double s Effective time metric
effTimePsfSigmaScale double Effective time metric -- PSF size component
effTimeSkyBgScale double Effective time metric -- Sky background component
effTimeZeroPointScale double Effective time metric -- Throughput component
magLim double mag 5-sigma limiting magnitude 1
wcsCornerMaxOffset double arcsec Maximum distance between the preliminary and final WCS at the corners of the detector. The WCS is set to null if this exceeds 0.5".
wcsDetectorPointingResidual double arcsec Maximum difference (on the pointing-fit grid) between the final WCS position and the position predicted by camera geometry, after re-pointing using the final WCS for this detector only. The detector is rejected from the pointing fit if this exceeds 10".
wcsVisitPointingResidual double arcsec Maximum difference (on the pointing-fit grid) between the final WCS position and the position predicted by camera geometry, after re-pointing using the final WCS of all non-rejected detectors in the visit. The WCS is set to null if this exceeds 60".
wcsPreliminaryDetectorPointingResidual double arcsec Maximum difference (on the pointing-fit grid) between the preliminary WCS position and the position predicted by camera geometry, after re-pointing using the prelimnary WCS for this detector only. The detector is rejected from the pointing fit if this exceeds 10".
wcsPreliminaryVisitPointingResidual double arcsec Maximum difference (on the pointing-fit grid) between the preliminary WCS position and the position predicted by camera geometry, after re-pointing using the preliminary WCS of all non-rejected detectors in the visit. The WCS is set to null if this exceeds 60".

SSObject

LSST-computed per-object quantities.

Column Name Data Type Unit Description UCD Order Principal
ssObjectId long Unique identifier. meta.id;src
designation char The unpacked primary provisional designation for this object. meta.id;src
nObs int Total number of LSST observations of this object. meta.number;obs
arc float d Timespan ("arc") of all LSST observations, t_{last} - t_{first} time.duration;obs
firstObservationMjdTai double d The time of the first LSST observation of this object (could be precovered), TAI. time.epoch;obs
MOIDEarth float AU Minimum orbit intersection distance to Earth. pos.distance;src.orbital
MOIDEarthDeltaV float km/s DeltaV at the MOID point. phys.veloc.orbital
MOIDEarthEclipticLongitude float deg Ecliptic longitude of the MOID point (Earth's orbit). pos.ecliptic.lon
MOIDEarthTrueAnomaly float deg True anomaly of the MOID point on Earth's orbit. pos.phaseAng
MOIDEarthTrueAnomalyObject float deg True anomaly of the MOID point on the object's orbit. pos.phaseAng;src.orbital
tisserand_J float Tisserand parameter with respect to Jupiter (T_J). src.orbital.TissJ
extendednessMax float Maximum `extendedness` value from the DiaSource.
extendednessMedian float Median `extendedness` value from the DiaSource.
extendednessMin float Minimum `extendedness` value from the DiaSource.
u_nObs int Total number of data points (u band). meta.number;obs
u_H float mag Best fit absolute magnitude (u band). phot.mag
u_HErr float mag Error in the estimate of H (u band). stat.error;phot.mag
u_G12 float Best fit G12 slope parameter (u band). stat.fit.param
u_G12Err float Error in the estimate of G12 (u band). stat.error;stat.fit.param
u_H_u_G12_Cov float mag**2 H–G12 covariance (u band). stat.covariance;phot.mag;stat.fit.param
u_nObsUsed int The number of data points used to fit the phase curve (u band). meta.number;obs
u_Chi2 float Chi^2 statistic of the phase curve fit (u band). stat.fit.chi2
u_phaseAngleMin float deg Minimum phase angle observed (u band). pos.phaseAng;stat.min
u_phaseAngleMax float deg Maximum phase angle observed (u band). pos.phaseAng;stat.max
u_slope_fit_failed boolean G12 fit failed in u band. G12 contains a fiducial value used to fit H.
g_nObs int Total number of data points (g band). meta.number;obs
g_H float mag Best fit absolute magnitude (g band). phot.mag
g_HErr float mag Error in the estimate of H (g band). stat.error;phot.mag
g_G12 float Best fit G12 slope parameter (g band). stat.fit.param
g_G12Err float Error in the estimate of G12 (g band). stat.error;stat.fit.param
g_H_g_G12_Cov float mag**2 H–G12 covariance (g band). stat.covariance;phot.mag;stat.fit.param
g_nObsUsed int The number of data points used to fit the phase curve (g band). meta.number;obs
g_Chi2 float Chi^2 statistic of the phase curve fit (g band). stat.fit.chi2
g_phaseAngleMin float deg Minimum phase angle observed (g band). pos.phaseAng;stat.min
g_phaseAngleMax float deg Maximum phase angle observed (g band). pos.phaseAng;stat.max
g_slope_fit_failed boolean G12 fit failed in g band. G12 contains a fiducial value used to fit H.
r_nObs int Total number of data points (r band). meta.number;obs
r_H float mag Best fit absolute magnitude (r band). phot.mag
r_HErr float mag Error in the estimate of H (r band). stat.error;phot.mag
r_G12 float Best fit G12 slope parameter (r band). stat.fit.param
r_G12Err float Error in the estimate of G12 (r band). stat.error;stat.fit.param
r_H_r_G12_Cov float mag**2 H–G12 covariance (r band). stat.covariance;phot.mag;stat.fit.param
r_nObsUsed int The number of data points used to fit the phase curve (r band). meta.number;obs
r_Chi2 float Chi^2 statistic of the phase curve fit (r band). stat.fit.chi2
r_phaseAngleMin float deg Minimum phase angle observed (r band). pos.phaseAng;stat.min
r_phaseAngleMax float deg Maximum phase angle observed (r band). pos.phaseAng;stat.max
r_slope_fit_failed boolean G12 fit failed in r band. G12 contains a fiducial value used to fit H.
i_nObs int Total number of data points (i band). meta.number;obs
i_H float mag Best fit absolute magnitude (i band). phot.mag
i_HErr float mag Error in the estimate of H (i band). stat.error;phot.mag
i_G12 float Best fit G12 slope parameter (i band). stat.fit.param
i_G12Err float Error in the estimate of G12 (i band). stat.error;stat.fit.param
i_H_i_G12_Cov float mag**2 H–G12 covariance (i band). stat.covariance;phot.mag;stat.fit.param
i_nObsUsed int The number of data points used to fit the phase curve (i band). meta.number;obs
i_Chi2 float Chi^2 statistic of the phase curve fit (i band). stat.fit.chi2
i_phaseAngleMin float deg Minimum phase angle observed (i band). pos.phaseAng;stat.min
i_phaseAngleMax float deg Maximum phase angle observed (i band). pos.phaseAng;stat.max
i_slope_fit_failed boolean G12 fit failed in i band. G12 contains a fiducial value used to fit H.
z_nObs int Total number of data points (z band). meta.number;obs
z_H float mag Best fit absolute magnitude (z band). phot.mag
z_HErr float mag Error in the estimate of H (z band). stat.error;phot.mag
z_G12 float Best fit G12 slope parameter (z band). stat.fit.param
z_G12Err float Error in the estimate of G12 (z band). stat.error;stat.fit.param
z_H_z_G12_Cov float mag**2 H–G12 covariance (z band). stat.covariance;phot.mag;stat.fit.param
z_nObsUsed int The number of data points used to fit the phase curve (z band). meta.number;obs
z_Chi2 float Chi^2 statistic of the phase curve fit (z band). stat.fit.chi2
z_phaseAngleMin float deg Minimum phase angle observed (z band). pos.phaseAng;stat.min
z_phaseAngleMax float deg Maximum phase angle observed (z band). pos.phaseAng;stat.max
z_slope_fit_failed boolean G12 fit failed in z band. G12 contains a fiducial value used to fit H.
y_nObs int Total number of data points (y band). meta.number;obs
y_H float mag Best fit absolute magnitude (y band). phot.mag
y_HErr float mag Error in the estimate of H (y band). stat.error;phot.mag
y_G12 float Best fit G12 slope parameter (y band). stat.fit.param
y_G12Err float Error in the estimate of G12 (y band). stat.error;stat.fit.param
y_H_y_G12_Cov float mag**2 H–G12 covariance (y band). stat.covariance;phot.mag;stat.fit.param
y_nObsUsed int The number of data points used to fit the phase curve (y band). meta.number;obs
y_Chi2 float Chi^2 statistic of the phase curve fit (y band). stat.fit.chi2
y_phaseAngleMin float deg Minimum phase angle observed (y band). pos.phaseAng;stat.min
y_phaseAngleMax float deg Maximum phase angle observed (y band). pos.phaseAng;stat.max
y_slope_fit_failed boolean G12 fit failed in y band. G12 contains a fiducial value used to fit H.

SSSource

LSST-computed per-source quantities. 1::1 relationship with DiaSource.

Column Name Data Type Unit Description UCD Order Principal
diaSourceId long Unique identifier of the observation (matching DiaSource.diaSourceId). meta.id;src
ssObjectId long Unique LSST identifier of the Solar System object. meta.id;src
designation char The unpacked primary provisional designation for this object. meta.id;src
eclLambda double deg Ecliptic longitude, converted from the observed coordinates. pos.ecliptic.lon
eclBeta double deg Ecliptic latitude, converted from the observed coordinates. pos.ecliptic.lat
galLon double deg Galactic longitude, converted from the observed coordinates. pos.galactic.lon
galLat double deg Galactic latitude, converted from the observed coordinates. pos.galactic.lat
elongation float deg Solar elongation of the object at the time of observation. pos.phaseAng
phaseAngle float deg Phase angle between the Sun, object, and observer. pos.phaseAng
topoRange float AU Topocentric distance (delta) at light-emission time. pos.distance
topoRangeRate float km/s Topocentric radial (line-of-sight) velocity (deldot); positive values indicate motion away from the observer. phys.veloc
helioRange float AU Heliocentric distance (r) at light-emission time. pos.distance;pos.heliocentric
helioRangeRate float km/s Heliocentric radial velocity (rdot); positive values indicate motion away from the Sun. phys.veloc;pos.heliocentric
ephRa double deg Predicted ICRS right ascension from the orbit in mpc_orbits. pos.eq.ra;meta.modelled;pos.ephem
ephDec double deg Predicted ICRS declination from the orbit in mpc_orbits. pos.eq.dec;meta.modelled;pos.ephem
ephVmag float mag Predicted magnitude in V band, computed from mpc_orbits data including the mpc_orbits-provided (H, G) estimates phot.mag;em.opt.V
ephRate float deg/d Total predicted on-sky angular rate of motion. pos.pm;pos.ephem
ephRateRa float deg/d Predicted on-sky angular rate in the R.A. direction (includes the cos(dec) factor). pos.pm;pos.eq.ra;pos.ephem
ephRateDec float deg/d Predicted on-sky angular rate in the declination direction. pos.pm;pos.eq.dec;pos.ephem
ephOffset float arcsec Total observed versus predicted angular separation on the sky. pos.angDistance;stat.fit.omc
ephOffsetRa double arcsec Offset between observed and predicted position in the R.A. direction (includes cos(dec) term). pos.eq.ra;stat.fit.omc
ephOffsetDec double arcsec Offset between observed and predicted position in declination. pos.eq.dec;stat.fit.omc
ephOffsetAlongTrack float arcsec Offset between observed and predicted position in the along-track direction on the sky. pos.angDistance;stat.fit.omc
ephOffsetCrossTrack float arcsec Offset between observed and predicted position in the cross-track direction on the sky. pos.angDistance;stat.fit.omc
helio_x float AU Cartesian heliocentric X coordinate at light-emission time (ICRS). pos.cartesian.x;pos.heliocentric
helio_y float AU Cartesian heliocentric Y coordinate at light-emission time (ICRS). pos.cartesian.y;pos.heliocentric
helio_z float AU Cartesian heliocentric Z coordinate at light-emission time (ICRS). pos.cartesian.z;pos.heliocentric
helio_vx float km/s Cartesian heliocentric X velocity at light-emission time (ICRS). phys.veloc;pos.cartesian.x
helio_vy float km/s Cartesian heliocentric Y velocity at light-emission time (ICRS). phys.veloc;pos.cartesian.y
helio_vz float km/s Cartesian heliocentric Z velocity at light-emission time (ICRS). phys.veloc;pos.cartesian.z
helio_vtot float km/s The magnitude of the heliocentric velocity vector, sqrt(vx*vx + vy*vy + vz*vz). phys.veloc;pos.heliocentric
topo_x float AU Cartesian topocentric X coordinate at light-emission time (ICRS). pos.cartesian.x
topo_y float AU Cartesian topocentric Y coordinate at light-emission time (ICRS). pos.cartesian.y
topo_z float AU Cartesian topocentric Z coordinate at light-emission time (ICRS). pos.cartesian.z
topo_vx float km/s Cartesian topocentric X velocity at light-emission time (ICRS). phys.veloc;pos.cartesian.x
topo_vy float km/s Cartesian topocentric Y velocity at light-emission time (ICRS). phys.veloc;pos.cartesian.y
topo_vz float km/s Cartesian topocentric Z velocity at light-emission time (ICRS). phys.veloc;pos.cartesian.z
topo_vtot float km/s The magnitude of the topocentric velocity vector, sqrt(vx*vx + vy*vy + vz*vz). phys.veloc
diaDistanceRank short The rank of the diaSourceId-identified source in terms of its closeness to the predicted SSO position. If diaSourceId is the nearest DiaSource to this SSO prediction, diaSourceDistanceRank=1 would be set. If it is the second nearest, it would be 2, etc.

mpc_orbits

Table of orbital elements and related information of known (sun-orbiting and unbound) Solar System objects. Replicated from the Minor Planet Center (Postgres) database. This schema will generally closely follow the schema of the upstream table, to allow end-users to rerun queries developed elsewhere on the RSP.

Column Name Data Type Unit Description UCD Order Principal
id int Internal ID (generally not seen/used by the user) meta.id;src
designation char The primary provisional designation in unpacked form (e.g. 2008 AB). meta.id;src
packed_primary_provisional_designation char The primary provisional designation in packed form (e.g. K08A00B) meta.id;src
unpacked_primary_provisional_designation char The primary provisional designation in unpacked form (e.g. 2008 AB) meta.id;src
mpc_orb_jsonb text Details of the orbit solution in JSON form
created_at timestamp When this row was created time.creation;meta.dataset
updated_at timestamp When this row was updated time.processing;meta.dataset
orbit_type_int int Orbit Type (Integer)
u_param int U parameter
nopp int number of oppositions
arc_length_total double d Arc length over total observations [days]
arc_length_sel double d Arc length over total observations *selected* [days]
nobs_total int Total number of all observations (optical + radar) available
nobs_total_sel int Total number of all observations (optical + radar) selected for use in orbit fitting
a double AU Semi Major Axis [au] pos.distance;src.orbital
q double AU Pericenter Distance [au] pos.distance;src.orbital
e double Eccentricity src.orbital.eccentricity
i double deg Inclination [degrees] src.orbital.inclination
node double deg Longitude of Ascending Node [degrees] src.orbital.node
argperi double deg Argument of Pericenter [degrees] src.orbital.periastron
peri_time double d Time from Pericenter Passage [days]
yarkovsky double 1e-10.au.d-2 Yarkovsky Component [10^(-10)*au/day^2]
srp double m2.t-1 Solar-Radiation Pressure Component [m^2/ton]
a1 double m2.t-1 A1 non-grav components [m^2/ton]
a2 double m2.t-1 A2 non-grav components [m^2/ton]
a3 double m2.t-1 A3 non-grav components [m^2/ton]
dt double DT non-grav component
mean_anomaly double deg Mean Anomaly [degrees] src.orbital.meanAnomaly
period double d Orbital Period [days] time.period.revolution;src.orbital
mean_motion double deg.d-1 Orbital Mean Motion [degrees per day] src.orbital.meanMotion
a_unc double AU Uncertainty on Semi Major Axis [au] stat.error;pos.distance;src.orbital
q_unc double AU Uncertainty on Pericenter Distance [au] stat.error;pos.distance;src.orbital
e_unc double Uncertainty on Eccentricity stat.error;src.orbital.eccentricity
i_unc double deg Uncertainty on Inclination [degrees] stat.error;src.orbital.inclination
node_unc double deg Uncertainty on Longitude of Ascending Node [degrees] stat.error;src.orbital.node
argperi_unc double deg Uncertainty on Argument of Pericenter [degrees] stat.error;src.orbital.periastron
peri_time_unc double d Uncertainty on Time from Pericenter Passage [days]
yarkovsky_unc double 1e-10.au.d-2 Uncertainty on Yarkovsky Component [10^(-10)*au/day^2]
srp_unc double m2.t-1 Uncertainty on Solar-Radiation Pressure Component [m^2/ton]
a1_unc double m2.t-1 Uncertainty on A1 non-grav components [m^2/ton]
a2_unc double m2.t-1 Uncertainty on A2 non-grav components [m^2/ton]
a3_unc double m2.t-1 Uncertainty on A3 non-grav components [m^2/ton]
dt_unc double Uncertainty on DT non-grav component
mean_anomaly_unc double deg Uncertainty on Mean Anomaly [degrees] stat.error;src.orbital.meanAnomaly
period_unc double d Uncertainty on Orbital Period [days] stat.error;time.period.revolution;src.orbital
mean_motion_unc double deg.d-1 Uncertainty on Orbital Mean Motion [degrees per day] stat.error;src.orbital.meanMotion
epoch_mjd double d Epoch of the Orbfit-Solution in MJD time.epoch;src.orbital
h double mag H-Magnitude phys.magAbs
g double G-Slope Parameter
not_normalized_rms double arcsec unnormalized rms of the fit [arcsec] stat.rms;stat.fit
normalized_rms double rms of the fit [unitless] stat.rms;stat.fit
earth_moid double AU Minimum Orbit Intersection Distance [au] with respect to the Earths Orbit pos.distance;src.orbital
fitting_datetime timestamp Date of the last orbit fit

current_identifications

All single-designations, and all identifications between designations. Always uses primary provisional designation (even for numbered objects). Includes all comets and satellites. Replicated from the Minor Planet Center (Postgres) database. This schema will generally closely follow the schema of the upstream table, to allow end-users to rerun queries developed elsewhere on the RSP.

Column Name Data Type Unit Description UCD Order Principal
id int Internal ID (generally not seen/used by the user) meta.id;src
packed_primary_provisional_designation char The primary provisional designation in packed form (e.g. K08A00B) meta.id;src
packed_secondary_provisional_designation char The secondary provisional designation in packed form (e.g. K08A00B). May be the same-as (A=A) or different-to (A=B) the primary provisional designation meta.id;src
unpacked_primary_provisional_designation char The primary provisional designation in unpacked form (e.g. 2008 AB) meta.id;src
unpacked_secondary_provisional_designation char The secondary provisional designation in unpacked form (e.g. 2008 AB). May be the same-as (A=A) or different-to (A=B) the primary provisional designation meta.id;src
published boolean Has this been published yet? i.e. has it been released to the public? meta.code.status;meta.dataset
identifier_ids text This is a set of unique identifier_ids in an array that points to the identification_metadata table. meta.id;src
object_type int Integer to indicate the object type. To be linked (foreign key) to object_type lookup table
numbered boolean Has the object been numbered and hence does it appear in the numbered_objects table?
created_at timestamp When this row was created time.creation;meta.dataset
updated_at timestamp When this row was updated time.processing;meta.dataset

numbered_identifications

The numbered identification table contains all the numbered objects (minor planets, comets and natural satellites) with their primary provisional designations. The table is continously updated everytime a new object is numbered. Replicated from the Minor Planet Center (Postgres) database. This schema will generally closely follow the schema of the upstream table, to allow end-users to rerun queries developed elsewhere on the RSP.

Column Name Data Type Unit Description UCD Order Principal
id int Internal ID (generally not seen/used by the user) meta.id;src
packed_primary_provisional_designation char The primary provisional designation in packed form (e.g. K08A00B) meta.id;src
unpacked_primary_provisional_designation char The primary provisional designation in unpacked form (e.g. 2008 AB) meta.id;src
permid char Permanent designation (number) meta.id;src
iau_designation text IAU-approved designation (not filled at the moment) meta.id;src
iau_name char IAU-approved name (not filled at the moment) meta.id;src
numbered_publication_references text MPEC where this object was numbered meta.bib.bibcode
named_publication_references text MPEC where this object was named meta.bib.bibcode
naming_credit text Credit for suggesting the name
created_at timestamp When this row was created time.creation;meta.dataset
updated_at timestamp When this row was updated time.processing;meta.dataset

Parent

Descriptions of the parent objects in the deblending hierarchy.

Column Name Data Type Unit Description UCD Order Principal
objectId long Unique id. Unique ObjectID meta.id;src 1
parentObjectId long Unique ID of parent source. Reference band. 1
merge_peak_sky boolean True when the parent object is a sky object
deblend_nChild int Number of children this object has (defaults to 0)
deblend_nPeaks int Number of peaks this parent footprint has (even if the deblender failed or skipped this blend)
deblend_failed boolean Deblender failed to deblend this source
deblend_skipped boolean Deblender skipped this source
deblend_skipped_isolatedParent boolean Deblender skipped this footprint because there was only a single peak
deblend_skipped_parentTooBig boolean Deblender skipped this source because the parent footprint was too large.
deblend_skipped_tooManyPeaks boolean Deblender skipped this source because there were too many peaks in the Footprint.
deblend_skipped_masked boolean Deblender skipped this source because there were too many masked pixels.
deblend_skipped_isPseudo boolean Deblender skipped this source because it was marked as a pseudo source like a sky object.
deblend_incompleteData boolean One or more bands were not deblended due to an inability to model the PSF.
deblend_iterations int Number of iterations during deblending
deblend_chi2 float Chi^2 of the source after deblending.

ShearObject

Descriptions of shear objects detected and measured on coadds with metadetection.

Column Name Data Type Unit Description UCD Order Principal
shearObjectId long Unique identifier for a ShearObject, specific to a single metacalibration counterfactual image. meta.id;src 1
tract long Skymap tract ID 1
patch long Skymap patch ID 1
cell_x int Column of the cell within the patch on which this measurement was made.
cell_y int Row of the cell within the patch on which this measurement was made.
metaStep char Type of artificial shear applied to image. One of 'ns', '1p', '1m', '2p', '2m'.
image_flags int Flags for the image on which this measurement was made.
x float Centroid (tract, x-axis) of the detected ShearObject.
y float Centroid (tract, y-axis) of the detected ShearObject.
ra double deg Detected Right Ascension of the ShearObject. pos.eq.ra
dec double deg Detected Declination of the ShearObject. pos.eq.dec
psfOriginal_flags int Flags for the original PSF measurement.
psfOriginal_e1 float Distortion-style e1 of the original PSF from adaptive moments.
psfOriginal_e2 float Distortion-style e2 of the original PSF from adaptive moments.
psfOriginal_T float arcsec**2 Trace (<x^2> + <y^2>) measurement of the original PSF from adaptive moments.
bmask_flags int bmask flags for the ShearObject.
ormask_flags int ored mask flags for the ShearObject.
mfrac float Gaussian-weighted masked fraction for the ShearObject.
gauss_psfReconvolved_flags int Flags for reconvolved PSF (measured with gauss algorithm).
gauss_psfReconvolved_g1 float Reduced-shear g1 of the reconvolved PSF (measured with gauss algorithm).
gauss_psfReconvolved_g2 float Reduced-shear g2 of the reconvolved PSF (measured with gauss algorithm).
gauss_psfReconvolved_T float arcsec**2 Trace (<x^2> + <y^2>) of the reconvolved PSF (measured with gauss algorithm).
gauss_g1 float Reduced-shear g1 measurement of the ShearObject (measured with gauss algorithm).
gauss_g2 float Reduced-shear g2 measurement of the ShearObject (measured with gauss algorithm).
gauss_g1_g1_Cov float Auto-covariance of g1 measurement of the ShearObject (measured with gauss algorithm).
gauss_g1_g2_Cov float Cross-covariance of g1 and g2 measurement of the ShearObject (measured with gauss algorithm).
gauss_g2_g2_Cov float Auto-covariance of g2 measurement of the ShearObject (measured with gauss algorithm).
gauss_snr float Signal-to-noise ratio measure of the ShearObject (measured with gauss algorithm).
gauss_T float arcsec**2 Trace (<x^2> + <y^2>) measurement of the ShearObject (measured with gauss algorithm).
gauss_TErr float arcsec**2 Uncertainty in the trace measurement of the ShearObject (measured with gauss algorithm).
gauss_shape_flags int Flags for the second moments measurement of the ShearObject (measured with gauss algorithm).
gauss_object_flags int Flags for the ShearObject measurement (measured with gauss algorithm).
gauss_flags int Overall flags for gauss measurement algorithm.
pgauss_snr float Signal-to-noise ratio measure of the ShearObject (measured with pgauss algorithm).
pgauss_T float arcsec**2 Trace (<x^2> + <y^2>) measurement of the ShearObject (measured with pgauss algorithm).
pgauss_TErr float arcsec**2 Uncertainty in the trace measurement of the ShearObject (measured with pgauss algorithm).
pgauss_shape_flags int Flags for the second moments measurement of the ShearObject (measured with pgauss algorithm).
pgauss_object_flags int Flags for the ShearObject measurement (measured with pgauss algorithm).
pgauss_flags int Overall flags for pgauss measurement algorithm.
g_gaussFlux_flags int Flags set for flux in g band measured with gauss algorithm.
g_gaussFlux float nJy Flux in g band (measured with gauss algorithm).
g_gaussFluxErr float nJy Flux uncertainty in g band (measured with gauss algorithm).
r_gaussFlux_flags int Flags set for flux in r band measured with gauss algorithm.
r_gaussFlux float nJy Flux in r band (measured with gauss algorithm).
r_gaussFluxErr float nJy Flux uncertainty in r band (measured with gauss algorithm).
i_gaussFlux_flags int Flags set for flux in i band measured with gauss algorithm.
i_gaussFlux float nJy Flux in i band (measured with gauss algorithm).
i_gaussFluxErr float nJy Flux uncertainty in i band (measured with gauss algorithm).
z_gaussFlux_flags int Flags set for flux in z band measured with gauss algorithm.
z_gaussFlux float nJy Flux in z band (measured with gauss algorithm).
z_gaussFluxErr float nJy Flux uncertainty in z band (measured with gauss algorithm).
g_pgaussFlux_flags int Flags set for flux in g band measured with pgauss algorithm.
g_pgaussFlux float nJy Flux in g band (measured with pgauss algorithm).
g_pgaussFluxErr float nJy Flux uncertainty in g band (measured with pgauss algorithm).
r_pgaussFlux_flags int Flags set for flux in r band measured with pgauss algorithm.
r_pgaussFlux float nJy Flux in r band (measured with pgauss algorithm).
r_pgaussFluxErr float nJy Flux uncertainty in r band (measured with pgauss algorithm).
i_pgaussFlux_flags int Flags set for flux in i band measured with pgauss algorithm.
i_pgaussFlux float nJy Flux in i band (measured with pgauss algorithm).
i_pgaussFluxErr float nJy Flux uncertainty in i band (measured with pgauss algorithm).
z_pgaussFlux_flags int Flags set for flux in z band measured with pgauss algorithm.
z_pgaussFlux float nJy Flux in z band (measured with pgauss algorithm).
z_pgaussFluxErr float nJy Flux uncertainty in z band (measured with pgauss algorithm).

SDM Schemas is maintained by Rubin Observatory.