.. _Data-Products-DP0-1-schema_forced_photometry: 
  
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Schema for dp01_dc2_catalogs.forced_photometry 
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Principal Columns
=================

**coord_dec** (unit=rad, type=double): position in ra/dec 
 
**coord_ra** (unit=rad, type=double): position in ra/dec 
 
**objectId** (type=long): Unique id. 
 
**[f]_base_ClassificationExtendedness_flag** (type=boolean): Set to 1 for any fatal failure. 
 
**[f]_base_ClassificationExtendedness_value** (type=double): Set to 1 for extended sources, 0 for point sources. 
 
**[f]_good** (type=boolean): True if the source has no flagged pixels. 
  
**[f]_modelfit_CModel_instFlux** (unit=count, type=double): flux from the final cmodel fit 

**[f]_modelfit_CModel_instFluxErr** (unit=count, type=double): flux uncertainty from the final cmodel fit 


All Other Columns
=================
 
**[f]_base_InputCount_flag** (type=boolean): Set for any fatal failure 
 
**[f]_base_InputCount_flag_badCentroid** (type=boolean): General Failure Flag 
 
**[f]_base_InputCount_flag_noInputs** (type=boolean): No coadd inputs available 
 
**[f]_base_InputCount_value** (type=int): Number of images contributing at center, not including anyclipping 
 
**[f]_base_LocalBackground_flag** (type=boolean): General Failure Flag 
 
**[f]_base_LocalBackground_flag_badCentroid** (type=boolean): General Failure Flag 
 
**[f]_base_LocalBackground_flag_noGoodPixels** (type=boolean): no good pixels in the annulus 
 
**[f]_base_LocalBackground_flag_noPsf** (type=boolean): no PSF provided 
 
**[f]_base_LocalBackground_instFlux** (unit=count, type=double): background in annulus around source 
 
**[f]_base_LocalBackground_instFluxErr** (unit=count, type=double): 1-sigma instFlux uncertainty 
 
**[f]_base_PixelFlags_flag** (type=boolean): General failure flag, set if anything went wrong 
 
**[f]_base_PixelFlags_flag_bad** (type=boolean): Bad pixel in the Source footprint 
 
**[f]_base_PixelFlags_flag_bright_object** (type=boolean): Source footprint includes BRIGHT_OBJECT pixels 
 
**[f]_base_PixelFlags_flag_bright_objectCenter** (type=boolean): Source center is close to BRIGHT_OBJECT pixels 
 
**[f]_base_PixelFlags_flag_clipped** (type=boolean): Source footprint includes CLIPPED pixels 
 
**[f]_base_PixelFlags_flag_clippedCenter** (type=boolean): Source center is close to CLIPPED pixels 
 
**[f]_base_PixelFlags_flag_cr** (type=boolean): Cosmic ray in the Source footprint 
 
**[f]_base_PixelFlags_flag_crCenter** (type=boolean): Cosmic ray in the Source center 
 
**[f]_base_PixelFlags_flag_edge** (type=boolean): Source is outside usable exposure region (masked EDGE or NO_DATA) 
 
**[f]_base_PixelFlags_flag_inexact_psf** (type=boolean): Source footprint includes INEXACT_PSF pixels 
 
**[f]_base_PixelFlags_flag_inexact_psfCenter** (type=boolean): Source center is close to INEXACT_PSF pixels 
 
**[f]_base_PixelFlags_flag_interpolated** (type=boolean): Interpolated pixel in the Source footprint 
 
**[f]_base_PixelFlags_flag_interpolatedCenter** (type=boolean): Interpolated pixel in the Source center 
 
**[f]_base_PixelFlags_flag_offimage** (type=boolean): Source center is off image 
 
**[f]_base_PixelFlags_flag_rejected** (type=boolean): Source footprint includes REJECTED pixels 
 
**[f]_base_PixelFlags_flag_rejectedCenter** (type=boolean): Source center is close to REJECTED pixels 
 
**[f]_base_PixelFlags_flag_saturated** (type=boolean): Saturated pixel in the Source footprint 
 
**[f]_base_PixelFlags_flag_saturatedCenter** (type=boolean): Saturated pixel in the Source center 
 
**[f]_base_PixelFlags_flag_sensor_edge** (type=boolean): Source footprint includes SENSOR_EDGE pixels 
 
**[f]_base_PixelFlags_flag_sensor_edgeCenter** (type=boolean): Source center is close to SENSOR_EDGE pixels 
 
**[f]_base_PixelFlags_flag_suspect** (type=boolean): Source''s footprint includes suspect pixels 
 
**[f]_base_PixelFlags_flag_suspectCenter** (type=boolean): Source''s center is close to suspect pixels 
 
**[f]_base_PsfFlux_apCorr** (type=double): aperture correction applied to base_PsfFlux 
 
**[f]_base_PsfFlux_apCorrErr** (type=double): standard deviation of aperture correction applied to base_PsfFlux 
 
**[f]_base_PsfFlux_area** (unit=pixel, type=double): effective area of PSF 
 
**[f]_base_PsfFlux_flag** (type=boolean): General Failure Flag 
 
**[f]_base_PsfFlux_flag_apCorr** (type=boolean): set if unable to aperture correct base_PsfFlux 
 
**[f]_base_PsfFlux_flag_badCentroid** (type=boolean): General Failure Flag 
 
**[f]_base_PsfFlux_flag_edge** (type=boolean): object was too close to the edge of the image to use the full PSF model 
 
**[f]_base_PsfFlux_flag_noGoodPixels** (type=boolean): not enough non-rejected pixels in data to attempt the fit 
 
**[f]_base_PsfFlux_instFlux** (unit=count, type=double): instFlux derived from linear least-squares fit of PSF model 
 
**[f]_base_PsfFlux_instFluxErr** (unit=count, type=double): 1-sigma instFlux uncertainty 
 
**[f]_base_SdssCentroid_flag** (type=boolean): General Failure Flag 
 
**[f]_base_SdssCentroid_flag_almostNoSecondDerivative** (type=boolean): Almost vanishing second derivative 
 
**[f]_base_SdssCentroid_flag_badInitialCentroid** (type=boolean): whether the reference centroid is marked as bad 
 
**[f]_base_SdssCentroid_flag_edge** (type=boolean): Object too close to edge 
 
**[f]_base_SdssCentroid_flag_noSecondDerivative** (type=boolean): Vanishing second derivative 
 
**[f]_base_SdssCentroid_flag_notAtMaximum** (type=boolean): Object is not at a maximum 
 
**[f]_base_SdssCentroid_flag_resetToPeak** (type=boolean): set if CentroidChecker reset the centroid 
 
**[f]_base_SdssCentroid_x** (unit=pixel, type=double): centroid from Sdss Centroid algorithm 
 
**[f]_base_SdssCentroid_xErr** (unit=pixel, type=double): 1-sigma uncertainty on x position 
 
**[f]_base_SdssCentroid_y** (unit=pixel, type=double): centroid from Sdss Centroid algorithm 
 
**[f]_base_SdssCentroid_yErr** (unit=pixel, type=double): 1-sigma uncertainty on y position 
 
**[f]_base_SdssShape_flag** (type=boolean): General Failure Flag 
 
**[f]_base_SdssShape_flag_badCentroid** (type=boolean): General Failure Flag 
 
**[f]_base_SdssShape_flag_maxIter** (type=boolean): Too many iterations in adaptive moments 
 
**[f]_base_SdssShape_flag_psf** (type=boolean): Failure in measuring PSF model shape 
 
**[f]_base_SdssShape_flag_shift** (type=boolean): centroid shifted by more than the maximum allowed amount 
 
**[f]_base_SdssShape_flag_unweighted** (type=boolean): Weighted moments converged to an invalid value; using unweighted moments 
 
**[f]_base_SdssShape_flag_unweightedBad** (type=boolean): Both weighted and unweighted moments were invalid 
 
**[f]_base_SdssShape_instFlux** (unit=count, type=double): elliptical Gaussian adaptive moments 
 
**[f]_base_SdssShape_instFlux_xx_Cov** (unit=count*pixel^2, type=double): uncertainty covariance between base_SdssShape_instFlux and base_SdssShape_xx 
 
**[f]_base_SdssShape_instFlux_xy_Cov** (unit=count*pixel^2, type=double): uncertainty covariance between base_SdssShape_instFlux and base_SdssShape_xy 
 
**[f]_base_SdssShape_instFlux_yy_Cov** (unit=count*pixel^2, type=double): uncertainty covariance between base_SdssShape_instFlux and base_SdssShape_yy 
 
**[f]_base_SdssShape_instFluxErr** (unit=count, type=double): 1-sigma instFlux uncertainty 
 
**[f]_base_SdssShape_psf_xx** (unit=pixel^2, type=double): adaptive moments of the PSF model at the object position 
 
**[f]_base_SdssShape_psf_xy** (unit=pixel^2, type=double): adaptive moments of the PSF model at the object position 
 
**[f]_base_SdssShape_psf_yy** (unit=pixel^2, type=double): adaptive moments of the PSF model at the object position 
 
**[f]_base_SdssShape_x** (unit=pixel, type=double): elliptical Gaussian adaptive moments 
 
**[f]_base_SdssShape_xx** (unit=pixel^2, type=double): elliptical Gaussian adaptive moments 
 
**[f]_base_SdssShape_xxErr** (unit=pixel^2, type=double): Standard deviation of xx moment 
 
**[f]_base_SdssShape_xy** (unit=pixel^2, type=double): elliptical Gaussian adaptive moments 
 
**[f]_base_SdssShape_xyErr** (unit=pixel^2, type=double): Standard deviation of xy moment 
 
**[f]_base_SdssShape_y** (unit=pixel, type=double): elliptical Gaussian adaptive moments 
 
**[f]_base_SdssShape_yy** (unit=pixel^2, type=double): elliptical Gaussian adaptive moments 
 
**[f]_base_SdssShape_yyErr** (unit=pixel^2, type=double): Standard deviation of yy moment 
 
**[f]_base_Variance_flag** (type=boolean): Set for any fatal failure 
 
**[f]_base_Variance_flag_badCentroid** (type=boolean): General Failure Flag 
 
**[f]_base_Variance_flag_emptyFootprint** (type=boolean): Set to True when the footprint has no usable pixels 
 
**[f]_base_Variance_value** (type=double): Variance at object position 
 
**[f]_modelfit_CModel_apCorr** (type=double): aperture correction applied to modelfit_CModel 
 
**[f]_modelfit_CModel_apCorrErr** (type=double): standard deviation of aperture correction applied to modelfit_CModel 
 
**[f]_modelfit_CModel_dev_apCorr** (type=double): aperture correction applied to modelfit_CModel_dev 
 
**[f]_modelfit_CModel_dev_apCorrErr** (type=double): standard deviation of aperture correction applied to modelfit_CModel_dev 
 
**[f]_modelfit_CModel_dev_flag** (type=boolean): flag set when the flux for the de Vaucouleur flux failed 
 
**[f]_modelfit_CModel_dev_flag_apCorr** (type=boolean): set if unable to aperture correct modelfit_CModel_dev 
 
**[f]_modelfit_CModel_dev_flag_badReference** (type=boolean): The original fit in the reference catalog failed. 
 
**[f]_modelfit_CModel_dev_flag_numericError** (type=boolean): numerical underflow or overflow in model evaluation; usually this means the prior was insufficient to regularize the fit, or all pixel values were zero. 
 
**[f]_modelfit_CModel_dev_flux_inner** (unit=count, type=double): flux from the de Vaucouleur fit region, with no extrapolation 
 
**[f]_modelfit_CModel_dev_instFlux** (unit=count, type=double): flux from the de Vaucouleur fit 
 
**[f]_modelfit_CModel_dev_instFluxErr** (unit=count, type=double): flux uncertainty from the de Vaucouleur fit 
 
**[f]_modelfit_CModel_exp_apCorr** (type=double): aperture correction applied to modelfit_CModel_exp 
 
**[f]_modelfit_CModel_exp_apCorrErr** (type=double): standard deviation of aperture correction applied to modelfit_CModel_exp 
 
**[f]_modelfit_CModel_exp_flag** (type=boolean): flag set when the flux for the exponential flux failed 
 
**[f]_modelfit_CModel_exp_flag_apCorr** (type=boolean): set if unable to aperture correct modelfit_CModel_exp 
 
**[f]_modelfit_CModel_exp_flag_badReference** (type=boolean): The original fit in the reference catalog failed. 
 
**[f]_modelfit_CModel_exp_flag_numericError** (type=boolean): numerical underflow or overflow in model evaluation; usually this means the prior was insufficient to regularize the fit, or all pixel values were zero. 
 
**[f]_modelfit_CModel_exp_flux_inner** (unit=count, type=double): flux from the exponential fit region, with no extrapolation 
 
**[f]_modelfit_CModel_exp_instFlux** (unit=count, type=double): flux from the exponential fit 
 
**[f]_modelfit_CModel_exp_instFluxErr** (unit=count, type=double): flux uncertainty from the exponential fit 
 
**[f]_modelfit_CModel_flag** (type=boolean): flag set if the final cmodel fit (or any previous fit) failed 
 
**[f]_modelfit_CModel_flag_apCorr** (type=boolean): set if unable to aperture correct modelfit_CModel 
 
**[f]_modelfit_CModel_flag_badCentroid** (type=boolean): input centroid was not within the fit region (probably because it''s not within the Footprint) 
 
**[f]_modelfit_CModel_flag_badReference** (type=boolean): The original fit in the reference catalog failed. 
 
**[f]_modelfit_CModel_flag_noShapeletPsf** (type=boolean): the multishapelet fit to the PSF model did not succeed 
 
**[f]_modelfit_CModel_flag_region_maxArea** (type=boolean): number of pixels in fit region exceeded the region.maxArea value 
 
**[f]_modelfit_CModel_flag_region_maxBadPixelFraction** (type=boolean): the fraction of bad/clipped pixels in the fit region exceeded region.maxBadPixelFraction 
 
**[f]_modelfit_CModel_fracDev** (type=double): fraction of flux in de Vaucouleur component 
 
**[f]_modelfit_CModel_initial_apCorr** (type=double): aperture correction applied to modelfit_CModel_initial 
 
**[f]_modelfit_CModel_initial_apCorrErr** (type=double): standard deviation of aperture correction applied to modelfit_CModel_initial 
 
**[f]_modelfit_CModel_initial_flag** (type=boolean): flag set when the flux for the initial flux failed 
 
**[f]_modelfit_CModel_initial_flag_apCorr** (type=boolean): set if unable to aperture correct modelfit_CModel_initial 
 
**[f]_modelfit_CModel_initial_flag_badReference** (type=boolean): The original fit in the reference catalog failed. 
 
**[f]_modelfit_CModel_initial_flag_numericError** (type=boolean): numerical underflow or overflow in model evaluation; usually this means the prior was insufficient to regularize the fit, or all pixel values were zero. 
 
**[f]_modelfit_CModel_initial_flux_inner** (unit=count, type=double): flux from the initial fit region, with no extrapolation 
 
**[f]_modelfit_CModel_initial_instFlux** (unit=count, type=double): flux from the initial fit 
 
**[f]_modelfit_CModel_initial_instFluxErr** (unit=count, type=double): flux uncertainty from the initial fit 
 
**[f]_modelfit_CModel_instFlux_inner** (unit=count, type=double): flux within the fit region, with no extrapolation 
 
**[f]_modelfit_CModel_objective** (type=double): -ln(likelihood) (chi^2) in cmodel fit