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.

Columns

name datatype description unit nullable ivoa:ucd
ra double Right Ascension coordinate of the position of the diaObject at time radecMjdTai. deg true pos.eq.ra;meta.main
dec double Declination coordinate of the position of the diaObject at time radecMjdTai. deg true pos.eq.dec;meta.main
nDiaSources long Number of diaSources associated with this diaObject. true
radecMjdTai double Time at which the object was at a position ra/dec, expressed as Modified Julian Date, International Atomic Time. d true
g_psfFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time nJy/d true
g_psfFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time nJy true
g_psfFluxMAD float Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma nJy true
g_psfFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime nJy/d true
g_psfFluxErrMean float Mean of the diaSource PSF flux errors nJy true
g_psfFluxMean double Weighted mean of diaSource PSF flux nJy true
g_psfFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux nJy true
g_psfFluxNdata double The number of data points used to compute g_psfFluxChi2 true
g_scienceFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
g_scienceFluxMeanErr double Standard error on g_scienceFluxMean nJy true
g_psfFluxMin double Minimum diaSource PSF flux nJy true
g_psfFluxMax double Maximum diaSource PSF flux nJy true
g_psfFluxPercentile05 double 5th percentile diaSource PSF flux nJy true
g_psfFluxPercentile25 double 10th percentile diaSource PSF flux nJy true
g_psfFluxPercentile50 double Median diaSource PSF flux nJy true
g_psfFluxPercentile75 double 75th percentile diaSource PSF flux nJy true
g_psfFluxPercentile95 double 95th percentile diaSource PSF flux nJy true
g_psfFluxSigma double Standard deviation of the distribution of g_psfFlux nJy true
g_scienceFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
g_psfFluxSkew float Skew of diaSource PSF flux true
g_psfFluxChi2 float Chi^2 statistic for the scatter of g_psfFlux around g_psfFluxMean true
g_psfFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
r_psfFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time nJy/d true
r_psfFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time nJy true
r_psfFluxMAD float Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma nJy true
r_psfFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime nJy/d true
r_psfFluxErrMean float Mean of the diaSource PSF flux errors nJy true
r_psfFluxMean double Weighted mean of diaSource PSF flux nJy true
r_psfFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux nJy true
r_psfFluxNdata double The number of data points used to compute r_psfFluxChi2 true
r_scienceFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
r_scienceFluxMeanErr double Standard error on r_scienceFluxMean nJy true
r_psfFluxMin double Minimum diaSource PSF flux nJy true
r_psfFluxMax double Maximum diaSource PSF flux nJy true
r_psfFluxPercentile05 double 5th percentile diaSource PSF flux nJy true
r_psfFluxPercentile25 double 10th percentile diaSource PSF flux nJy true
r_psfFluxPercentile50 double Median diaSource PSF flux nJy true
r_psfFluxPercentile75 double 75th percentile diaSource PSF flux nJy true
r_psfFluxPercentile95 double 95th percentile diaSource PSF flux nJy true
r_psfFluxSigma double Standard deviation of the distribution of r_psfFlux nJy true
r_scienceFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
r_psfFluxSkew float Skew of diaSource PSF flux true
r_psfFluxChi2 float Chi^2 statistic for the scatter of r_psfFlux around r_psfFluxMean true
r_psfFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
u_psfFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time nJy/d true
u_psfFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time nJy true
u_psfFluxMAD float Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma nJy true
u_psfFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime nJy/d true
u_psfFluxErrMean float Mean of the diaSource PSF flux errors nJy true
u_psfFluxMean double Weighted mean of diaSource PSF flux nJy true
u_psfFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux nJy true
u_psfFluxNdata double The number of data points used to compute u_psfFluxChi2 true
u_scienceFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
u_scienceFluxMeanErr double Standard error on u_scienceFluxMean nJy true
u_psfFluxMin double Minimum diaSource PSF flux nJy true
u_psfFluxMax double Maximum diaSource PSF flux nJy true
u_psfFluxPercentile05 double 5th percentile diaSource PSF flux nJy true
u_psfFluxPercentile25 double 10th percentile diaSource PSF flux nJy true
u_psfFluxPercentile50 double Median diaSource PSF flux nJy true
u_psfFluxPercentile75 double 75th percentile diaSource PSF flux nJy true
u_psfFluxPercentile95 double 95th percentile diaSource PSF flux nJy true
u_psfFluxSigma double Standard deviation of the distribution of u_psfFlux nJy true
u_scienceFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
u_psfFluxSkew float Skew of diaSource PSF flux true
u_psfFluxChi2 float Chi^2 statistic for the scatter of u_psfFlux around u_psfFluxMean true
u_psfFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
i_psfFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time nJy/d true
i_psfFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time nJy true
i_psfFluxMAD float Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma nJy true
i_psfFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime nJy/d true
i_psfFluxErrMean float Mean of the diaSource PSF flux errors nJy true
i_psfFluxMean double Weighted mean of diaSource PSF flux nJy true
i_psfFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux nJy true
i_psfFluxNdata double The number of data points used to compute i_psfFluxChi2 true
i_scienceFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
i_scienceFluxMeanErr double Standard error on i_scienceFluxMean nJy true
i_psfFluxMin double Minimum diaSource PSF flux nJy true
i_psfFluxMax double Maximum diaSource PSF flux nJy true
i_psfFluxPercentile05 double 5th percentile diaSource PSF flux nJy true
i_psfFluxPercentile25 double 10th percentile diaSource PSF flux nJy true
i_psfFluxPercentile50 double Median diaSource PSF flux nJy true
i_psfFluxPercentile75 double 75th percentile diaSource PSF flux nJy true
i_psfFluxPercentile95 double 95th percentile diaSource PSF flux nJy true
i_psfFluxSigma double Standard deviation of the distribution of i_psfFlux nJy true
i_scienceFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
i_psfFluxSkew float Skew of diaSource PSF flux true
i_psfFluxChi2 float Chi^2 statistic for the scatter of i_psfFlux around i_psfFluxMean true
i_psfFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
z_psfFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time nJy/d true
z_psfFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time nJy true
z_psfFluxMAD float Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma nJy true
z_psfFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime nJy/d true
z_psfFluxErrMean float Mean of the diaSource PSF flux errors nJy true
z_psfFluxMean double Weighted mean of diaSource PSF flux nJy true
z_psfFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux nJy true
z_psfFluxNdata double The number of data points used to compute z_psfFluxChi2 true
z_scienceFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
z_scienceFluxMeanErr double Standard error on z_scienceFluxMean nJy true
z_psfFluxMin double Minimum diaSource PSF flux nJy true
z_psfFluxMax double Maximum diaSource PSF flux nJy true
z_psfFluxPercentile05 double 5th percentile diaSource PSF flux nJy true
z_psfFluxPercentile25 double 10th percentile diaSource PSF flux nJy true
z_psfFluxPercentile50 double Median diaSource PSF flux nJy true
z_psfFluxPercentile75 double 75th percentile diaSource PSF flux nJy true
z_psfFluxPercentile95 double 95th percentile diaSource PSF flux nJy true
z_psfFluxSigma double Standard deviation of the distribution of z_psfFlux nJy true
z_scienceFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
z_psfFluxSkew float Skew of diaSource PSF flux true
z_psfFluxChi2 float Chi^2 statistic for the scatter of z_psfFlux around z_psfFluxMean true
z_psfFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
y_psfFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time nJy/d true
y_psfFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time nJy true
y_psfFluxMAD float Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma nJy true
y_psfFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime nJy/d true
y_psfFluxErrMean float Mean of the diaSource PSF flux errors nJy true
y_psfFluxMean double Weighted mean of diaSource PSF flux nJy true
y_psfFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux nJy true
y_psfFluxNdata double The number of data points used to compute y_psfFluxChi2 true
y_scienceFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
y_scienceFluxMeanErr double Standard error on y_scienceFluxMean nJy true
y_psfFluxMin double Minimum diaSource PSF flux nJy true
y_psfFluxMax double Maximum diaSource PSF flux nJy true
y_psfFluxPercentile05 double 5th percentile diaSource PSF flux nJy true
y_psfFluxPercentile25 double 10th percentile diaSource PSF flux nJy true
y_psfFluxPercentile50 double Median diaSource PSF flux nJy true
y_psfFluxPercentile75 double 75th percentile diaSource PSF flux nJy true
y_psfFluxPercentile95 double 95th percentile diaSource PSF flux nJy true
y_psfFluxSigma double Standard deviation of the distribution of y_psfFlux nJy true
y_scienceFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image nJy true
y_psfFluxSkew float Skew of diaSource PSF flux true
y_psfFluxChi2 float Chi^2 statistic for the scatter of y_psfFlux around y_psfFluxMean true
y_psfFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
diaObjectId primary key indexed long Unique identifier of this DiaObject. true

Indexes

Index Definition Description
idx_DiaObject_diaObjectId diaObjectId Unique index on the diaObjectId column