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
decl double Mean Declination of DIASources in the diaObject deg true pos.eq.dec;meta.main
diaObjectId primary key long Unique id. true meta.id;meta.main
gPSFluxChi2 double Chi^2 statistic for the scatter of gPSFlux around gPSFluxMean true
gPSFluxErrMean double Mean of the diaSource PSF flux uncertainties true
gPSFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time true
gPSFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time true
gPSFluxMAD double Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma true
gPSFluxMax double Maximum diaSource PSF flux true
gPSFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime true
gPSFluxMean double Weighted mean of diaSource PSF flux true
gPSFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux true
gPSFluxMin double Minimum diaSource PSF flux true
gPSFluxNdata double The number of data points used to compute gPSFluxChi2 true
gPSFluxPercentile05 double 5th percentile diaSource PSF flux true
gPSFluxPercentile25 double 10th percentile diaSource PSF flux true
gPSFluxPercentile50 double Median diaSource PSF flux true
gPSFluxPercentile75 double 75th percentile diaSource PSF flux true
gPSFluxPercentile95 double 95th percentile diaSource PSF flux true
gPSFluxSigma double Standard deviation of the distribution of gPSFlux true
gPSFluxSkew double Skew of diaSource PSF flux true
gPSFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
gTOTFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image true
gTOTFluxMeanErr double Standard error on gTOTFluxMean true
gTOTFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image true
iPSFluxChi2 double Chi^2 statistic for the scatter of iPSFlux around iPSFluxMean true
iPSFluxErrMean double Mean of the diaSource PSF flux uncertainties true
iPSFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time true
iPSFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time true
iPSFluxMAD double Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma true
iPSFluxMax double Maximum diaSource PSF flux true
iPSFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime true
iPSFluxMean double Weighted mean of diaSource PSF flux true
iPSFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux true
iPSFluxMin double Minimum diaSource PSF flux true
iPSFluxNdata double The number of data points used to compute iPSFluxChi2 true
iPSFluxPercentile05 double 5th percentile diaSource PSF flux true
iPSFluxPercentile25 double 10th percentile diaSource PSF flux true
iPSFluxPercentile50 double Median diaSource PSF flux true
iPSFluxPercentile75 double 75th percentile diaSource PSF flux true
iPSFluxPercentile95 double 95th percentile diaSource PSF flux true
iPSFluxSigma double Standard deviation of the distribution of iPSFlux true
iPSFluxSkew double Skew of diaSource PSF flux true
iPSFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
iTOTFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image true
iTOTFluxMeanErr double Standard error on iTOTFluxMean true
iTOTFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image true
nDiaSources long Number of diaSources associated with this diaObject true
pixelId double HtmIndex20 of ra, decl coordinate true
rPSFluxChi2 double Chi^2 statistic for the scatter of rPSFlux around rPSFluxMean true
rPSFluxErrMean double Mean of the diaSource PSF flux uncertainties true
rPSFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time true
rPSFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time true
rPSFluxMAD double Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma true
rPSFluxMax double Maximum diaSource PSF flux true
rPSFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime true
rPSFluxMean double Weighted mean of diaSource PSF flux true
rPSFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux true
rPSFluxMin double Minimum diaSource PSF flux true
rPSFluxNdata double The number of data points used to compute rPSFluxChi2 true
rPSFluxPercentile05 double 5th percentile diaSource PSF flux true
rPSFluxPercentile25 double 10th percentile diaSource PSF flux true
rPSFluxPercentile50 double Median diaSource PSF flux true
rPSFluxPercentile75 double 75th percentile diaSource PSF flux true
rPSFluxPercentile95 double 95th percentile diaSource PSF flux true
rPSFluxSigma double Standard deviation of the distribution of rPSFlux true
rPSFluxSkew double Skew of diaSource PSF flux true
rPSFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
rTOTFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image true
rTOTFluxMeanErr double Standard error on rTOTFluxMean true
rTOTFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image true
ra double Mean Right Ascension of DIASources in the diaObject deg true pos.eq.ra;meta.main
radecTai double Not used in DP0.2 true
uPSFluxChi2 double Chi^2 statistic for the scatter of uPSFlux around uPSFluxMean true
uPSFluxErrMean double Mean of the diaSource PSF flux uncertainties true
uPSFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time true
uPSFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time true
uPSFluxMAD double Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma true
uPSFluxMax double Maximum diaSource PSF flux true
uPSFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime true
uPSFluxMean double Weighted mean of diaSource PSF flux true
uPSFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux true
uPSFluxMin double Minimum diaSource PSF flux true
uPSFluxNdata double The number of data points used to compute uPSFluxChi2 true
uPSFluxPercentile05 double 5th percentile diaSource PSF flux true
uPSFluxPercentile25 double 10th percentile diaSource PSF flux true
uPSFluxPercentile50 double Median diaSource PSF flux true
uPSFluxPercentile75 double 75th percentile diaSource PSF flux true
uPSFluxPercentile95 double 95th percentile diaSource PSF flux true
uPSFluxSigma double Standard deviation of the distribution of uPSFlux true
uPSFluxSkew double Skew of diaSource PSF flux true
uPSFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
uTOTFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image true
uTOTFluxMeanErr double Standard error on uTOTFluxMean true
uTOTFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image true
yPSFluxChi2 double Chi^2 statistic for the scatter of yPSFlux around yPSFluxMean true
yPSFluxErrMean double Mean of the diaSource PSF flux uncertainties true
yPSFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time true
yPSFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time true
yPSFluxMAD double Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma true
yPSFluxMax double Maximum diaSource PSF flux true
yPSFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime true
yPSFluxMean double Weighted mean of diaSource PSF flux true
yPSFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux true
yPSFluxMin double Minimum diaSource PSF flux true
yPSFluxNdata double The number of data points used to compute yPSFluxChi2 true
yPSFluxPercentile05 double 5th percentile diaSource PSF flux true
yPSFluxPercentile25 double 10th percentile diaSource PSF flux true
yPSFluxPercentile50 double Median diaSource PSF flux true
yPSFluxPercentile75 double 75th percentile diaSource PSF flux true
yPSFluxPercentile95 double 95th percentile diaSource PSF flux true
yPSFluxSigma double Standard deviation of the distribution of yPSFlux true
yPSFluxSkew double Skew of diaSource PSF flux true
yPSFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
yTOTFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image true
yTOTFluxMeanErr double Standard error on yTOTFluxMean true
yTOTFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image true
zPSFluxChi2 double Chi^2 statistic for the scatter of zPSFlux around zPSFluxMean true
zPSFluxErrMean double Mean of the diaSource PSF flux uncertainties true
zPSFluxLinearIntercept double y-intercept of a linear model fit to diaSource PSF flux vs time true
zPSFluxLinearSlope double Slope of a linear model fit to diaSource PSF flux vs time true
zPSFluxMAD double Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma true
zPSFluxMax double Maximum diaSource PSF flux true
zPSFluxMaxSlope double Maximum ratio of time ordered deltaFlux / deltaTime true
zPSFluxMean double Weighted mean of diaSource PSF flux true
zPSFluxMeanErr double Standard error on the weighted mean of diaSource PSF flux true
zPSFluxMin double Minimum diaSource PSF flux true
zPSFluxNdata double The number of data points used to compute zPSFluxChi2 true
zPSFluxPercentile05 double 5th percentile diaSource PSF flux true
zPSFluxPercentile25 double 10th percentile diaSource PSF flux true
zPSFluxPercentile50 double Median diaSource PSF flux true
zPSFluxPercentile75 double 75th percentile diaSource PSF flux true
zPSFluxPercentile95 double 95th percentile diaSource PSF flux true
zPSFluxSigma double Standard deviation of the distribution of zPSFlux true
zPSFluxSkew double Skew of diaSource PSF flux true
zPSFluxStetsonJ double StetsonJ statistic of diaSource PSF flux true
zTOTFluxMean double Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image true
zTOTFluxMeanErr double Standard error on zTOTFluxMean true
zTOTFluxSigma double Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image true