# Data Preview 0.2 Schema

Data Preview 0.2 contains the image and catalog products of the Rubin Science Pipelines v23 processing of the DESC Data Challenge 2 simulation, which covered 300 square degrees of the wide-fast-deep LSST survey region over 5 years.

## Object

Properties of the astronomical objects detected and measured on the deep coadded images.

Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|

objectId | long | Unique id. Unique ObjectID [meta.id;src] | |

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] |

deblend_nChild | int | Number of children this object has (defaults to 0) | |

deblend_skipped | boolean | Deblender skipped this source | |

detect_fromBlend | boolean | This source is deblended from a parent with more than one child. | |

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 | |

detect_isDeblendedSource | 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 either an unblended isolated source or a deblended child from a parent with | |

detect_isIsolated | boolean | This source is not a part of a blend. | |

detect_isPatchInner | boolean | True if source is in the inner region of a coadd patch | |

detect_isPrimary | 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) | |

detect_isTractInner | boolean | True if source is in the inner region of a coadd tract | |

footprintArea | int | pixel | Number of pixels in the sources detection footprint. Reference band. |

merge_peak_sky | boolean | Peak detected in filter sky | |

parentObjectId | long | Unique ID of parent source. Reference band. | |

patch | long | Skymap patch ID | |

refBand | char | Reference band - parameters measured on coadds of this band were used for multi-band forced photometry | |

refExtendedness | double | Set to 1 for extended sources, 0 for point sources. Reference band. | |

refFwhm | double | Estimated FWHM on the reference band at source center assuming a Gaussian profile | |

shape_flag | boolean | General failure flag, set if anything went wrong. Reference band. | |

shape_xx | double | pixel^2 | HSM moments. Reference band. |

shape_xy | double | pixel^2 | HSM moments. Reference band. |

shape_yy | double | pixel^2 | HSM moments. Reference band. |

sky_object | boolean | No source was detected here. This object exists to characterize properties of the sky background | |

skymap | char | Name of skymap used for coadd projection | |

tract | long | Skymap tract ID | |

x | double | pixel | Centroid from Sdss Centroid algorithm. Reference band. |

xErr | float | pixel | 1-sigma uncertainty on x position. Reference band. |

xy_flag | boolean | General Failure Flag. Reference band. | |

y | double | pixel | Centroid from Sdss Centroid algorithm. Reference band. |

yErr | float | pixel | 1-sigma uncertainty on y position. Reference band. |

g_ap03Flux | double | nJy | Flux within 3.0-pixel aperture. Forced on g-band. |

g_ap03FluxErr | double | nJy | Flux uncertainty within 3.0-pixel aperture. Forced on g-band. |

g_ap03Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_ap06Flux | double | nJy | Flux within 6.0-pixel aperture. Forced on g-band. |

g_ap06FluxErr | double | nJy | Flux uncertainty within 6.0-pixel aperture. Forced on g-band. |

g_ap06Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_ap09Flux | double | nJy | Flux within 9.0-pixel aperture. Forced on g-band. |

g_ap09FluxErr | double | nJy | Flux uncertainty within 9.0-pixel aperture. Forced on g-band. |

g_ap09Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_ap12Flux | double | nJy | Flux within 12.0-pixel aperture. Forced on g-band. |

g_ap12FluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Forced on g-band. |

g_ap12Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_ap17Flux | double | nJy | Flux within 17.0-pixel aperture. Forced on g-band. |

g_ap17FluxErr | double | nJy | Flux uncertainty within 17.0-pixel aperture. Forced on g-band. |

g_ap17Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_ap25Flux | double | nJy | Flux within 25.0-pixel aperture. Forced on g-band. |

g_ap25FluxErr | double | nJy | Flux uncertainty within 25.0-pixel aperture. Forced on g-band. |

g_ap25Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_ap35Flux | double | nJy | Flux within 35.0-pixel aperture. Forced on g-band. |

g_ap35FluxErr | double | nJy | Flux uncertainty within 35.0-pixel aperture. Forced on g-band. |

g_ap35Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_ap50Flux | double | nJy | Flux within 50.0-pixel aperture. Forced on g-band. |

g_ap50FluxErr | double | nJy | Flux uncertainty within 50.0-pixel aperture. Forced on g-band. |

g_ap50Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_ap70Flux | double | nJy | Flux within 70.0-pixel aperture. Forced on g-band. |

g_ap70FluxErr | double | nJy | Flux uncertainty within 70.0-pixel aperture. Forced on g-band. |

g_ap70Flux_flag | boolean | General Failure Flag. Forced on g-band. | |

g_apFlux_flag | boolean | General Failure Flag. Measured on g-band. | |

g_apFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on g-band. | |

g_apFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on g-band. | |

g_bdChi2 | double | -ln(likelihood) (chi^2) in cmodel fit. Measured on g-band. | |

g_bdE1 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on g-band. |

g_bdE2 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on g-band. |

g_bdFluxB | double | nJy | Flux from the de Vaucouleur fit. Measured on g-band. |

g_bdFluxBErr | double | nJy | Flux uncertainty from the de Vaucouleur fit. Measured on g-band. |

g_bdFluxD | double | nJy | Flux from the exponential fit. Measured on g-band. |

g_bdFluxDErr | double | nJy | Flux uncertainty from the exponential fit. Measured on g-band. |

g_bdReB | double | pixel^2 | Half-light ellipse of the de Vaucouleur fit. Measured on g-band. |

g_bdReD | double | pixel^2 | Half-light ellipse of the exponential fit. Measured on g-band. |

g_blendedness | 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. Measured on g-band. | |

g_blendedness_flag | boolean | General Failure Flag. Measured on g-band. | |

g_cModelFlux | double | nJy | Flux from the final cmodel fit. Forced on g-band. |

g_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. Forced on g-band. |

g_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. 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 | Set if unable to aperture correct modelfit_CModel. Forced on g-band. | |

g_calibFlux | double | nJy | Flux within 12.0-pixel aperture. Measured on g-band. |

g_calibFluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Measured on g-band. |

g_calibFlux_flag | boolean | General Failure Flag. Measured on g-band. | |

g_calibFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on g-band. | |

g_calibFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on g-band. | |

g_calib_astrometry_used | boolean | Propagated from sources. Measured on g-band. | |

g_calib_photometry_reserved | 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_centroid_flag | boolean | General Failure Flag. Measured on g-band. | |

g_centroid_x | double | pixel | Centroid from Sdss Centroid algorithm. Measured on g-band. |

g_centroid_xErr | float | pixel | 1-sigma uncertainty on x position. Measured on g-band. |

g_centroid_y | double | pixel | Centroid from Sdss Centroid algorithm. Measured on g-band. |

g_centroid_yErr | float | pixel | 1-sigma uncertainty on y position. Measured on g-band. |

g_decl | double | deg | Position in ra/dec. Measured on g-band. [pos.eq.dec] |

g_extendedness | double | Set to 1 for extended sources, 0 for point sources. Measured on g-band. | |

g_extendedness_flag | boolean | Set to 1 for any fatal failure. Measured on g-band. | |

g_free_cModelFlux | double | nJy | Flux from the final cmodel fit. Measured on g-band. |

g_free_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. 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_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. Measured on g-band. |

g_free_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Measured on g-band. |

g_free_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. Measured on g-band. |

g_free_psfFlux_flag | boolean | General Failure Flag. Measured on g-band. | |

g_fwhm | double | pixel^2 | HSM moments. Measured on g-band. |

g_gaap0p5Flux | double | nJy | GAaP Flux with 0.5 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap0p5FluxErr | double | nJy | GAaP Flux uncertainty with 0.5 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap0p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on g-band. | |

g_gaap0p7Flux | double | nJy | GAaP Flux with 0.7 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap0p7FluxErr | double | nJy | GAaP Flux uncertainty with 0.7 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap0p7Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on g-band. | |

g_gaap1p0Flux | double | nJy | GAaP Flux with 1.0 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap1p0FluxErr | double | nJy | GAaP Flux uncertainty with 1.0 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap1p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on g-band. | |

g_gaap1p5Flux | double | nJy | GAaP Flux with 1.5 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap1p5FluxErr | double | nJy | GAaP Flux uncertainty with 1.5 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap1p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on g-band. | |

g_gaap2p5Flux | double | nJy | GAaP Flux with 2.5 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap2p5FluxErr | double | nJy | GAaP Flux uncertainty with 2.5 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap2p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on g-band. | |

g_gaap3p0Flux | double | nJy | GAaP Flux with 3.0 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap3p0FluxErr | double | nJy | GAaP Flux uncertainty with 3.0 aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaap3p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on g-band. | |

g_gaapFlux_flag | boolean | Set for any fatal failure. Forced on g-band. | |

g_gaapFlux_flag_edge | boolean | Source is too close to the edge. Forced on g-band. | |

g_gaapFlux_flag_gaussianization | boolean | PSF Gaussianization failed when trying to scale by this factor. Forced on g-band. | |

g_gaapOptimalFlux | double | nJy | GAaP Flux with optimal aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaapOptimalFluxErr | double | nJy | GAaP Flux uncertainty with optimal aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaapOptimalFlux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on g-band. | |

g_gaapPsfFlux | double | nJy | GAaP Flux with PSF aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_gaapPsfFluxErr | double | nJy | GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on g-band. |

g_hsmShapeRegauss_e1 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on g-band. | |

g_hsmShapeRegauss_e2 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on g-band. | |

g_hsmShapeRegauss_flag | boolean | General failure flag, set if anything went wrong. Measured on g-band. | |

g_hsmShapeRegauss_sigma | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on g-band. | |

g_iDebiasedPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on g-band. | |

g_iPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on g-band. | |

g_iRound_flag | double | pixel^2 | HSM moments. Measured on g-band. |

g_i_flag | boolean | General failure flag, set if anything went wrong. Measured on g-band. | |

g_inputCount | int | Number of images contributing at center, not including anyclipping. Forced on g-band. | |

g_inputCount_flag | boolean | Set for any fatal failure. Forced on g-band. | |

g_inputCount_flag_noInputs | boolean | No coadd inputs available. Forced on g-band. | |

g_ixx | double | pixel^2 | HSM moments. Measured on g-band. |

g_ixxDebiasedPSF | double | pixel^2 | HSM moments. Measured on g-band. |

g_ixxPSF | double | pixel^2 | HSM moments. Measured on g-band. |

g_ixxRound | double | pixel^2 | HSM moments. Measured on g-band. |

g_ixy | double | pixel^2 | HSM moments. Measured on g-band. |

g_ixyDebiasedPSF | double | pixel^2 | HSM moments. Measured on g-band. |

g_ixyPSF | double | pixel^2 | HSM moments. Measured on g-band. |

g_ixyRound | double | pixel^2 | HSM moments. Measured on g-band. |

g_iyy | double | pixel^2 | HSM moments. Measured on g-band. |

g_iyyDebiasedPSF | double | pixel^2 | HSM moments. Measured on g-band. |

g_iyyPSF | double | pixel^2 | HSM moments. Measured on g-band. |

g_iyyRound | double | pixel^2 | HSM moments. Measured on g-band. |

g_kronFlux | double | nJy | Flux from Kron Flux algorithm. Measured on g-band. |

g_kronFluxErr | double | nJy | Flux uncertainty from Kron Flux algorithm. Measured on g-band. |

g_kronFlux_flag | boolean | General failure flag, set if anything went wrong. 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 aperture. Measured on g-band. | |

g_kronFlux_flag_used_psf_radius | boolean | Used the PSF Kron radius for the Kron aperture. Measured on g-band. | |

g_kronRad | float | Kron radius (sqrt(a*b)). Measured on g-band. | |

g_pixelFlags_bad | boolean | Bad pixel in the Source footprint. Measured on g-band. | |

g_pixelFlags_clipped | boolean | Source footprint includes CLIPPED pixels. Measured on g-band. | |

g_pixelFlags_clippedCenter | boolean | Source center is close to CLIPPED pixels. Measured on g-band. | |

g_pixelFlags_cr | boolean | Cosmic ray in the Source footprint. Measured on g-band. | |

g_pixelFlags_crCenter | boolean | Cosmic ray in the Source center. Measured on g-band. | |

g_pixelFlags_edge | boolean | Source is outside usable exposure region (masked EDGE or NO_DATA). Measured on g-band. | |

g_pixelFlags_inexact_psf | boolean | Source footprint includes INEXACT_PSF pixels. Measured on g-band. | |

g_pixelFlags_inexact_psfCenter | boolean | Source center is close to INEXACT_PSF pixels. Measured on g-band. | |

g_pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint. Measured on g-band. | |

g_pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center. Measured on g-band. | |

g_pixelFlags_offimage | boolean | Source center is off image. Measured on g-band. | |

g_pixelFlags_saturated | boolean | Saturated pixel in the Source footprint. Measured on g-band. | |

g_pixelFlags_saturatedCenter | boolean | Saturated pixel in the Source center. Measured on g-band. | |

g_pixelFlags_sensor_edge | boolean | Source footprint includes SENSOR_EDGE pixels. Measured on g-band. | |

g_pixelFlags_sensor_edgeCenter | boolean | Source center is close to SENSOR_EDGE pixels. Measured on g-band. | |

g_pixelFlags_suspect | boolean | Sources footprint includes suspect pixels. Measured on g-band. | |

g_pixelFlags_suspectCenter | boolean | Sources center is close to suspect pixels. Measured on g-band. | |

g_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Forced on g-band. |

g_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. 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 | Set if unable to aperture correct base_PsfFlux. 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_ra | double | deg | Position in ra/dec. Measured on g-band. [pos.eq.ra] |

i_ap03Flux | double | nJy | Flux within 3.0-pixel aperture. Forced on i-band. |

i_ap03FluxErr | double | nJy | Flux uncertainty within 3.0-pixel aperture. Forced on i-band. |

i_ap03Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_ap06Flux | double | nJy | Flux within 6.0-pixel aperture. Forced on i-band. |

i_ap06FluxErr | double | nJy | Flux uncertainty within 6.0-pixel aperture. Forced on i-band. |

i_ap06Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_ap09Flux | double | nJy | Flux within 9.0-pixel aperture. Forced on i-band. |

i_ap09FluxErr | double | nJy | Flux uncertainty within 9.0-pixel aperture. Forced on i-band. |

i_ap09Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_ap12Flux | double | nJy | Flux within 12.0-pixel aperture. Forced on i-band. |

i_ap12FluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Forced on i-band. |

i_ap12Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_ap17Flux | double | nJy | Flux within 17.0-pixel aperture. Forced on i-band. |

i_ap17FluxErr | double | nJy | Flux uncertainty within 17.0-pixel aperture. Forced on i-band. |

i_ap17Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_ap25Flux | double | nJy | Flux within 25.0-pixel aperture. Forced on i-band. |

i_ap25FluxErr | double | nJy | Flux uncertainty within 25.0-pixel aperture. Forced on i-band. |

i_ap25Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_ap35Flux | double | nJy | Flux within 35.0-pixel aperture. Forced on i-band. |

i_ap35FluxErr | double | nJy | Flux uncertainty within 35.0-pixel aperture. Forced on i-band. |

i_ap35Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_ap50Flux | double | nJy | Flux within 50.0-pixel aperture. Forced on i-band. |

i_ap50FluxErr | double | nJy | Flux uncertainty within 50.0-pixel aperture. Forced on i-band. |

i_ap50Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_ap70Flux | double | nJy | Flux within 70.0-pixel aperture. Forced on i-band. |

i_ap70FluxErr | double | nJy | Flux uncertainty within 70.0-pixel aperture. Forced on i-band. |

i_ap70Flux_flag | boolean | General Failure Flag. Forced on i-band. | |

i_apFlux_flag | boolean | General Failure Flag. Measured on i-band. | |

i_apFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on i-band. | |

i_apFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on i-band. | |

i_bdChi2 | double | -ln(likelihood) (chi^2) in cmodel fit. Measured on i-band. | |

i_bdE1 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on i-band. |

i_bdE2 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on i-band. |

i_bdFluxB | double | nJy | Flux from the de Vaucouleur fit. Measured on i-band. |

i_bdFluxBErr | double | nJy | Flux uncertainty from the de Vaucouleur fit. Measured on i-band. |

i_bdFluxD | double | nJy | Flux from the exponential fit. Measured on i-band. |

i_bdFluxDErr | double | nJy | Flux uncertainty from the exponential fit. Measured on i-band. |

i_bdReB | double | pixel^2 | Half-light ellipse of the de Vaucouleur fit. Measured on i-band. |

i_bdReD | double | pixel^2 | Half-light ellipse of the exponential fit. Measured on i-band. |

i_blendedness | 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. Measured on i-band. | |

i_blendedness_flag | boolean | General Failure Flag. Measured on i-band. | |

i_cModelFlux | double | nJy | Flux from the final cmodel fit. Forced on i-band. |

i_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. Forced on i-band. |

i_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. 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 | Set if unable to aperture correct modelfit_CModel. Forced on i-band. | |

i_calibFlux | double | nJy | Flux within 12.0-pixel aperture. Measured on i-band. |

i_calibFluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Measured on i-band. |

i_calibFlux_flag | boolean | General Failure Flag. Measured on i-band. | |

i_calibFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on i-band. | |

i_calibFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on i-band. | |

i_calib_astrometry_used | boolean | Propagated from sources. Measured on i-band. | |

i_calib_photometry_reserved | 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_centroid_flag | boolean | General Failure Flag. Measured on i-band. | |

i_centroid_x | double | pixel | Centroid from Sdss Centroid algorithm. Measured on i-band. |

i_centroid_xErr | float | pixel | 1-sigma uncertainty on x position. Measured on i-band. |

i_centroid_y | double | pixel | Centroid from Sdss Centroid algorithm. Measured on i-band. |

i_centroid_yErr | float | pixel | 1-sigma uncertainty on y position. Measured on i-band. |

i_decl | double | deg | Position in ra/dec. Measured on i-band. [pos.eq.dec] |

i_extendedness | double | Set to 1 for extended sources, 0 for point sources. Measured on i-band. | |

i_extendedness_flag | boolean | Set to 1 for any fatal failure. Measured on i-band. | |

i_free_cModelFlux | double | nJy | Flux from the final cmodel fit. Measured on i-band. |

i_free_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. 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_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. Measured on i-band. |

i_free_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Measured on i-band. |

i_free_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. Measured on i-band. |

i_free_psfFlux_flag | boolean | General Failure Flag. Measured on i-band. | |

i_fwhm | double | pixel^2 | HSM moments. Measured on i-band. |

i_gaap0p5Flux | double | nJy | GAaP Flux with 0.5 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap0p5FluxErr | double | nJy | GAaP Flux uncertainty with 0.5 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap0p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on i-band. | |

i_gaap0p7Flux | double | nJy | GAaP Flux with 0.7 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap0p7FluxErr | double | nJy | GAaP Flux uncertainty with 0.7 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap0p7Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on i-band. | |

i_gaap1p0Flux | double | nJy | GAaP Flux with 1.0 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap1p0FluxErr | double | nJy | GAaP Flux uncertainty with 1.0 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap1p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on i-band. | |

i_gaap1p5Flux | double | nJy | GAaP Flux with 1.5 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap1p5FluxErr | double | nJy | GAaP Flux uncertainty with 1.5 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap1p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on i-band. | |

i_gaap2p5Flux | double | nJy | GAaP Flux with 2.5 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap2p5FluxErr | double | nJy | GAaP Flux uncertainty with 2.5 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap2p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on i-band. | |

i_gaap3p0Flux | double | nJy | GAaP Flux with 3.0 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap3p0FluxErr | double | nJy | GAaP Flux uncertainty with 3.0 aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaap3p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on i-band. | |

i_gaapFlux_flag | boolean | Set for any fatal failure. Forced on i-band. | |

i_gaapFlux_flag_edge | boolean | Source is too close to the edge. Forced on i-band. | |

i_gaapFlux_flag_gaussianization | boolean | PSF Gaussianization failed when trying to scale by this factor. Forced on i-band. | |

i_gaapOptimalFlux | double | nJy | GAaP Flux with optimal aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaapOptimalFluxErr | double | nJy | GAaP Flux uncertainty with optimal aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaapOptimalFlux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on i-band. | |

i_gaapPsfFlux | double | nJy | GAaP Flux with PSF aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_gaapPsfFluxErr | double | nJy | GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on i-band. |

i_hsmShapeRegauss_e1 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on i-band. | |

i_hsmShapeRegauss_e2 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on i-band. | |

i_hsmShapeRegauss_flag | boolean | General failure flag, set if anything went wrong. Measured on i-band. | |

i_hsmShapeRegauss_sigma | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on i-band. | |

i_iDebiasedPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on i-band. | |

i_iPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on i-band. | |

i_iRound_flag | double | pixel^2 | HSM moments. Measured on i-band. |

i_i_flag | boolean | General failure flag, set if anything went wrong. Measured on i-band. | |

i_inputCount | int | Number of images contributing at center, not including anyclipping. Forced on i-band. | |

i_inputCount_flag | boolean | Set for any fatal failure. Forced on i-band. | |

i_inputCount_flag_noInputs | boolean | No coadd inputs available. Forced on i-band. | |

i_ixx | double | pixel^2 | HSM moments. Measured on i-band. |

i_ixxDebiasedPSF | double | pixel^2 | HSM moments. Measured on i-band. |

i_ixxPSF | double | pixel^2 | HSM moments. Measured on i-band. |

i_ixxRound | double | pixel^2 | HSM moments. Measured on i-band. |

i_ixy | double | pixel^2 | HSM moments. Measured on i-band. |

i_ixyDebiasedPSF | double | pixel^2 | HSM moments. Measured on i-band. |

i_ixyPSF | double | pixel^2 | HSM moments. Measured on i-band. |

i_ixyRound | double | pixel^2 | HSM moments. Measured on i-band. |

i_iyy | double | pixel^2 | HSM moments. Measured on i-band. |

i_iyyDebiasedPSF | double | pixel^2 | HSM moments. Measured on i-band. |

i_iyyPSF | double | pixel^2 | HSM moments. Measured on i-band. |

i_iyyRound | double | pixel^2 | HSM moments. Measured on i-band. |

i_kronFlux | double | nJy | Flux from Kron Flux algorithm. Measured on i-band. |

i_kronFluxErr | double | nJy | Flux uncertainty from Kron Flux algorithm. Measured on i-band. |

i_kronFlux_flag | boolean | General failure flag, set if anything went wrong. 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 aperture. Measured on i-band. | |

i_kronFlux_flag_used_psf_radius | boolean | Used the PSF Kron radius for the Kron aperture. Measured on i-band. | |

i_kronRad | float | Kron radius (sqrt(a*b)). Measured on i-band. | |

i_pixelFlags_bad | boolean | Bad pixel in the Source footprint. Measured on i-band. | |

i_pixelFlags_clipped | boolean | Source footprint includes CLIPPED pixels. Measured on i-band. | |

i_pixelFlags_clippedCenter | boolean | Source center is close to CLIPPED pixels. Measured on i-band. | |

i_pixelFlags_cr | boolean | Cosmic ray in the Source footprint. Measured on i-band. | |

i_pixelFlags_crCenter | boolean | Cosmic ray in the Source center. Measured on i-band. | |

i_pixelFlags_edge | boolean | Source is outside usable exposure region (masked EDGE or NO_DATA). Measured on i-band. | |

i_pixelFlags_inexact_psf | boolean | Source footprint includes INEXACT_PSF pixels. Measured on i-band. | |

i_pixelFlags_inexact_psfCenter | boolean | Source center is close to INEXACT_PSF pixels. Measured on i-band. | |

i_pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint. Measured on i-band. | |

i_pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center. Measured on i-band. | |

i_pixelFlags_offimage | boolean | Source center is off image. Measured on i-band. | |

i_pixelFlags_saturated | boolean | Saturated pixel in the Source footprint. Measured on i-band. | |

i_pixelFlags_saturatedCenter | boolean | Saturated pixel in the Source center. Measured on i-band. | |

i_pixelFlags_sensor_edge | boolean | Source footprint includes SENSOR_EDGE pixels. Measured on i-band. | |

i_pixelFlags_sensor_edgeCenter | boolean | Source center is close to SENSOR_EDGE pixels. Measured on i-band. | |

i_pixelFlags_suspect | boolean | Sources footprint includes suspect pixels. Measured on i-band. | |

i_pixelFlags_suspectCenter | boolean | Sources center is close to suspect pixels. Measured on i-band. | |

i_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Forced on i-band. |

i_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. 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 | Set if unable to aperture correct base_PsfFlux. 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_ra | double | deg | Position in ra/dec. Measured on i-band. [pos.eq.ra] |

r_ap03Flux | double | nJy | Flux within 3.0-pixel aperture. Forced on r-band. |

r_ap03FluxErr | double | nJy | Flux uncertainty within 3.0-pixel aperture. Forced on r-band. |

r_ap03Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_ap06Flux | double | nJy | Flux within 6.0-pixel aperture. Forced on r-band. |

r_ap06FluxErr | double | nJy | Flux uncertainty within 6.0-pixel aperture. Forced on r-band. |

r_ap06Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_ap09Flux | double | nJy | Flux within 9.0-pixel aperture. Forced on r-band. |

r_ap09FluxErr | double | nJy | Flux uncertainty within 9.0-pixel aperture. Forced on r-band. |

r_ap09Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_ap12Flux | double | nJy | Flux within 12.0-pixel aperture. Forced on r-band. |

r_ap12FluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Forced on r-band. |

r_ap12Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_ap17Flux | double | nJy | Flux within 17.0-pixel aperture. Forced on r-band. |

r_ap17FluxErr | double | nJy | Flux uncertainty within 17.0-pixel aperture. Forced on r-band. |

r_ap17Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_ap25Flux | double | nJy | Flux within 25.0-pixel aperture. Forced on r-band. |

r_ap25FluxErr | double | nJy | Flux uncertainty within 25.0-pixel aperture. Forced on r-band. |

r_ap25Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_ap35Flux | double | nJy | Flux within 35.0-pixel aperture. Forced on r-band. |

r_ap35FluxErr | double | nJy | Flux uncertainty within 35.0-pixel aperture. Forced on r-band. |

r_ap35Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_ap50Flux | double | nJy | Flux within 50.0-pixel aperture. Forced on r-band. |

r_ap50FluxErr | double | nJy | Flux uncertainty within 50.0-pixel aperture. Forced on r-band. |

r_ap50Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_ap70Flux | double | nJy | Flux within 70.0-pixel aperture. Forced on r-band. |

r_ap70FluxErr | double | nJy | Flux uncertainty within 70.0-pixel aperture. Forced on r-band. |

r_ap70Flux_flag | boolean | General Failure Flag. Forced on r-band. | |

r_apFlux_flag | boolean | General Failure Flag. Measured on r-band. | |

r_apFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on r-band. | |

r_apFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on r-band. | |

r_bdChi2 | double | -ln(likelihood) (chi^2) in cmodel fit. Measured on r-band. | |

r_bdE1 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on r-band. |

r_bdE2 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on r-band. |

r_bdFluxB | double | nJy | Flux from the de Vaucouleur fit. Measured on r-band. |

r_bdFluxBErr | double | nJy | Flux uncertainty from the de Vaucouleur fit. Measured on r-band. |

r_bdFluxD | double | nJy | Flux from the exponential fit. Measured on r-band. |

r_bdFluxDErr | double | nJy | Flux uncertainty from the exponential fit. Measured on r-band. |

r_bdReB | double | pixel^2 | Half-light ellipse of the de Vaucouleur fit. Measured on r-band. |

r_bdReD | double | pixel^2 | Half-light ellipse of the exponential fit. Measured on r-band. |

r_blendedness | 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. Measured on r-band. | |

r_blendedness_flag | boolean | General Failure Flag. Measured on r-band. | |

r_cModelFlux | double | nJy | Flux from the final cmodel fit. Forced on r-band. |

r_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. Forced on r-band. |

r_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. 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 | Set if unable to aperture correct modelfit_CModel. Forced on r-band. | |

r_calibFlux | double | nJy | Flux within 12.0-pixel aperture. Measured on r-band. |

r_calibFluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Measured on r-band. |

r_calibFlux_flag | boolean | General Failure Flag. Measured on r-band. | |

r_calibFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on r-band. | |

r_calibFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on r-band. | |

r_calib_astrometry_used | boolean | Propagated from sources. Measured on r-band. | |

r_calib_photometry_reserved | 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_centroid_flag | boolean | General Failure Flag. Measured on r-band. | |

r_centroid_x | double | pixel | Centroid from Sdss Centroid algorithm. Measured on r-band. |

r_centroid_xErr | float | pixel | 1-sigma uncertainty on x position. Measured on r-band. |

r_centroid_y | double | pixel | Centroid from Sdss Centroid algorithm. Measured on r-band. |

r_centroid_yErr | float | pixel | 1-sigma uncertainty on y position. Measured on r-band. |

r_decl | double | deg | Position in ra/dec. Measured on r-band. [pos.eq.dec] |

r_extendedness | double | Set to 1 for extended sources, 0 for point sources. Measured on r-band. | |

r_extendedness_flag | boolean | Set to 1 for any fatal failure. Measured on r-band. | |

r_free_cModelFlux | double | nJy | Flux from the final cmodel fit. Measured on r-band. |

r_free_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. 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_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. Measured on r-band. |

r_free_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Measured on r-band. |

r_free_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. Measured on r-band. |

r_free_psfFlux_flag | boolean | General Failure Flag. Measured on r-band. | |

r_fwhm | double | pixel^2 | HSM moments. Measured on r-band. |

r_gaap0p5Flux | double | nJy | GAaP Flux with 0.5 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap0p5FluxErr | double | nJy | GAaP Flux uncertainty with 0.5 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap0p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on r-band. | |

r_gaap0p7Flux | double | nJy | GAaP Flux with 0.7 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap0p7FluxErr | double | nJy | GAaP Flux uncertainty with 0.7 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap0p7Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on r-band. | |

r_gaap1p0Flux | double | nJy | GAaP Flux with 1.0 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap1p0FluxErr | double | nJy | GAaP Flux uncertainty with 1.0 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap1p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on r-band. | |

r_gaap1p5Flux | double | nJy | GAaP Flux with 1.5 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap1p5FluxErr | double | nJy | GAaP Flux uncertainty with 1.5 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap1p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on r-band. | |

r_gaap2p5Flux | double | nJy | GAaP Flux with 2.5 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap2p5FluxErr | double | nJy | GAaP Flux uncertainty with 2.5 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap2p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on r-band. | |

r_gaap3p0Flux | double | nJy | GAaP Flux with 3.0 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap3p0FluxErr | double | nJy | GAaP Flux uncertainty with 3.0 aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaap3p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on r-band. | |

r_gaapFlux_flag | boolean | Set for any fatal failure. Forced on r-band. | |

r_gaapFlux_flag_edge | boolean | Source is too close to the edge. Forced on r-band. | |

r_gaapFlux_flag_gaussianization | boolean | PSF Gaussianization failed when trying to scale by this factor. Forced on r-band. | |

r_gaapOptimalFlux | double | nJy | GAaP Flux with optimal aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaapOptimalFluxErr | double | nJy | GAaP Flux uncertainty with optimal aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaapOptimalFlux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on r-band. | |

r_gaapPsfFlux | double | nJy | GAaP Flux with PSF aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_gaapPsfFluxErr | double | nJy | GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on r-band. |

r_hsmShapeRegauss_e1 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on r-band. | |

r_hsmShapeRegauss_e2 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on r-band. | |

r_hsmShapeRegauss_flag | boolean | General failure flag, set if anything went wrong. Measured on r-band. | |

r_hsmShapeRegauss_sigma | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on r-band. | |

r_iDebiasedPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on r-band. | |

r_iPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on r-band. | |

r_iRound_flag | double | pixel^2 | HSM moments. Measured on r-band. |

r_i_flag | boolean | General failure flag, set if anything went wrong. Measured on r-band. | |

r_inputCount | int | Number of images contributing at center, not including anyclipping. Forced on r-band. | |

r_inputCount_flag | boolean | Set for any fatal failure. Forced on r-band. | |

r_inputCount_flag_noInputs | boolean | No coadd inputs available. Forced on r-band. | |

r_ixx | double | pixel^2 | HSM moments. Measured on r-band. |

r_ixxDebiasedPSF | double | pixel^2 | HSM moments. Measured on r-band. |

r_ixxPSF | double | pixel^2 | HSM moments. Measured on r-band. |

r_ixxRound | double | pixel^2 | HSM moments. Measured on r-band. |

r_ixy | double | pixel^2 | HSM moments. Measured on r-band. |

r_ixyDebiasedPSF | double | pixel^2 | HSM moments. Measured on r-band. |

r_ixyPSF | double | pixel^2 | HSM moments. Measured on r-band. |

r_ixyRound | double | pixel^2 | HSM moments. Measured on r-band. |

r_iyy | double | pixel^2 | HSM moments. Measured on r-band. |

r_iyyDebiasedPSF | double | pixel^2 | HSM moments. Measured on r-band. |

r_iyyPSF | double | pixel^2 | HSM moments. Measured on r-band. |

r_iyyRound | double | pixel^2 | HSM moments. Measured on r-band. |

r_kronFlux | double | nJy | Flux from Kron Flux algorithm. Measured on r-band. |

r_kronFluxErr | double | nJy | Flux uncertainty from Kron Flux algorithm. Measured on r-band. |

r_kronFlux_flag | boolean | General failure flag, set if anything went wrong. 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 aperture. Measured on r-band. | |

r_kronFlux_flag_used_psf_radius | boolean | Used the PSF Kron radius for the Kron aperture. Measured on r-band. | |

r_kronRad | float | Kron radius (sqrt(a*b)). Measured on r-band. | |

r_pixelFlags_bad | boolean | Bad pixel in the Source footprint. Measured on r-band. | |

r_pixelFlags_clipped | boolean | Source footprint includes CLIPPED pixels. Measured on r-band. | |

r_pixelFlags_clippedCenter | boolean | Source center is close to CLIPPED pixels. Measured on r-band. | |

r_pixelFlags_cr | boolean | Cosmic ray in the Source footprint. Measured on r-band. | |

r_pixelFlags_crCenter | boolean | Cosmic ray in the Source center. Measured on r-band. | |

r_pixelFlags_edge | boolean | Source is outside usable exposure region (masked EDGE or NO_DATA). Measured on r-band. | |

r_pixelFlags_inexact_psf | boolean | Source footprint includes INEXACT_PSF pixels. Measured on r-band. | |

r_pixelFlags_inexact_psfCenter | boolean | Source center is close to INEXACT_PSF pixels. Measured on r-band. | |

r_pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint. Measured on r-band. | |

r_pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center. Measured on r-band. | |

r_pixelFlags_offimage | boolean | Source center is off image. Measured on r-band. | |

r_pixelFlags_saturated | boolean | Saturated pixel in the Source footprint. Measured on r-band. | |

r_pixelFlags_saturatedCenter | boolean | Saturated pixel in the Source center. Measured on r-band. | |

r_pixelFlags_sensor_edge | boolean | Source footprint includes SENSOR_EDGE pixels. Measured on r-band. | |

r_pixelFlags_sensor_edgeCenter | boolean | Source center is close to SENSOR_EDGE pixels. Measured on r-band. | |

r_pixelFlags_suspect | boolean | Sources footprint includes suspect pixels. Measured on r-band. | |

r_pixelFlags_suspectCenter | boolean | Sources center is close to suspect pixels. Measured on r-band. | |

r_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Forced on r-band. |

r_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. 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 | Set if unable to aperture correct base_PsfFlux. 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_ra | double | deg | Position in ra/dec. Measured on r-band. [pos.eq.ra] |

u_ap03Flux | double | nJy | Flux within 3.0-pixel aperture. Forced on u-band. |

u_ap03FluxErr | double | nJy | Flux uncertainty within 3.0-pixel aperture. Forced on u-band. |

u_ap03Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_ap06Flux | double | nJy | Flux within 6.0-pixel aperture. Forced on u-band. |

u_ap06FluxErr | double | nJy | Flux uncertainty within 6.0-pixel aperture. Forced on u-band. |

u_ap06Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_ap09Flux | double | nJy | Flux within 9.0-pixel aperture. Forced on u-band. |

u_ap09FluxErr | double | nJy | Flux uncertainty within 9.0-pixel aperture. Forced on u-band. |

u_ap09Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_ap12Flux | double | nJy | Flux within 12.0-pixel aperture. Forced on u-band. |

u_ap12FluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Forced on u-band. |

u_ap12Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_ap17Flux | double | nJy | Flux within 17.0-pixel aperture. Forced on u-band. |

u_ap17FluxErr | double | nJy | Flux uncertainty within 17.0-pixel aperture. Forced on u-band. |

u_ap17Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_ap25Flux | double | nJy | Flux within 25.0-pixel aperture. Forced on u-band. |

u_ap25FluxErr | double | nJy | Flux uncertainty within 25.0-pixel aperture. Forced on u-band. |

u_ap25Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_ap35Flux | double | nJy | Flux within 35.0-pixel aperture. Forced on u-band. |

u_ap35FluxErr | double | nJy | Flux uncertainty within 35.0-pixel aperture. Forced on u-band. |

u_ap35Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_ap50Flux | double | nJy | Flux within 50.0-pixel aperture. Forced on u-band. |

u_ap50FluxErr | double | nJy | Flux uncertainty within 50.0-pixel aperture. Forced on u-band. |

u_ap50Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_ap70Flux | double | nJy | Flux within 70.0-pixel aperture. Forced on u-band. |

u_ap70FluxErr | double | nJy | Flux uncertainty within 70.0-pixel aperture. Forced on u-band. |

u_ap70Flux_flag | boolean | General Failure Flag. Forced on u-band. | |

u_apFlux_flag | boolean | General Failure Flag. Measured on u-band. | |

u_apFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on u-band. | |

u_apFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on u-band. | |

u_bdChi2 | double | -ln(likelihood) (chi^2) in cmodel fit. Measured on u-band. | |

u_bdE1 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on u-band. |

u_bdE2 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on u-band. |

u_bdFluxB | double | nJy | Flux from the de Vaucouleur fit. Measured on u-band. |

u_bdFluxBErr | double | nJy | Flux uncertainty from the de Vaucouleur fit. Measured on u-band. |

u_bdFluxD | double | nJy | Flux from the exponential fit. Measured on u-band. |

u_bdFluxDErr | double | nJy | Flux uncertainty from the exponential fit. Measured on u-band. |

u_bdReB | double | pixel^2 | Half-light ellipse of the de Vaucouleur fit. Measured on u-band. |

u_bdReD | double | pixel^2 | Half-light ellipse of the exponential fit. Measured on u-band. |

u_blendedness | 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. Measured on u-band. | |

u_blendedness_flag | boolean | General Failure Flag. Measured on u-band. | |

u_cModelFlux | double | nJy | Flux from the final cmodel fit. Forced on u-band. |

u_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. Forced on u-band. |

u_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. 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 | Set if unable to aperture correct modelfit_CModel. Forced on u-band. | |

u_calibFlux | double | nJy | Flux within 12.0-pixel aperture. Measured on u-band. |

u_calibFluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Measured on u-band. |

u_calibFlux_flag | boolean | General Failure Flag. Measured on u-band. | |

u_calibFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on u-band. | |

u_calibFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on u-band. | |

u_calib_astrometry_used | boolean | Propagated from sources. Measured on u-band. | |

u_calib_photometry_reserved | 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_centroid_flag | boolean | General Failure Flag. Measured on u-band. | |

u_centroid_x | double | pixel | Centroid from Sdss Centroid algorithm. Measured on u-band. |

u_centroid_xErr | float | pixel | 1-sigma uncertainty on x position. Measured on u-band. |

u_centroid_y | double | pixel | Centroid from Sdss Centroid algorithm. Measured on u-band. |

u_centroid_yErr | float | pixel | 1-sigma uncertainty on y position. Measured on u-band. |

u_decl | double | deg | Position in ra/dec. Measured on u-band. [pos.eq.dec] |

u_extendedness | double | Set to 1 for extended sources, 0 for point sources. Measured on u-band. | |

u_extendedness_flag | boolean | Set to 1 for any fatal failure. Measured on u-band. | |

u_free_cModelFlux | double | nJy | Flux from the final cmodel fit. Measured on u-band. |

u_free_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. 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_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. Measured on u-band. |

u_free_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Measured on u-band. |

u_free_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. Measured on u-band. |

u_free_psfFlux_flag | boolean | General Failure Flag. Measured on u-band. | |

u_fwhm | double | pixel^2 | HSM moments. Measured on u-band. |

u_gaap0p5Flux | double | nJy | GAaP Flux with 0.5 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap0p5FluxErr | double | nJy | GAaP Flux uncertainty with 0.5 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap0p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on u-band. | |

u_gaap0p7Flux | double | nJy | GAaP Flux with 0.7 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap0p7FluxErr | double | nJy | GAaP Flux uncertainty with 0.7 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap0p7Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on u-band. | |

u_gaap1p0Flux | double | nJy | GAaP Flux with 1.0 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap1p0FluxErr | double | nJy | GAaP Flux uncertainty with 1.0 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap1p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on u-band. | |

u_gaap1p5Flux | double | nJy | GAaP Flux with 1.5 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap1p5FluxErr | double | nJy | GAaP Flux uncertainty with 1.5 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap1p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on u-band. | |

u_gaap2p5Flux | double | nJy | GAaP Flux with 2.5 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap2p5FluxErr | double | nJy | GAaP Flux uncertainty with 2.5 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap2p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on u-band. | |

u_gaap3p0Flux | double | nJy | GAaP Flux with 3.0 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap3p0FluxErr | double | nJy | GAaP Flux uncertainty with 3.0 aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaap3p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on u-band. | |

u_gaapFlux_flag | boolean | Set for any fatal failure. Forced on u-band. | |

u_gaapFlux_flag_edge | boolean | Source is too close to the edge. Forced on u-band. | |

u_gaapFlux_flag_gaussianization | boolean | PSF Gaussianization failed when trying to scale by this factor. Forced on u-band. | |

u_gaapOptimalFlux | double | nJy | GAaP Flux with optimal aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaapOptimalFluxErr | double | nJy | GAaP Flux uncertainty with optimal aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaapOptimalFlux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on u-band. | |

u_gaapPsfFlux | double | nJy | GAaP Flux with PSF aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_gaapPsfFluxErr | double | nJy | GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on u-band. |

u_hsmShapeRegauss_e1 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on u-band. | |

u_hsmShapeRegauss_e2 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on u-band. | |

u_hsmShapeRegauss_flag | boolean | General failure flag, set if anything went wrong. Measured on u-band. | |

u_hsmShapeRegauss_sigma | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on u-band. | |

u_iDebiasedPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on u-band. | |

u_iPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on u-band. | |

u_iRound_flag | double | pixel^2 | HSM moments. Measured on u-band. |

u_i_flag | boolean | General failure flag, set if anything went wrong. Measured on u-band. | |

u_inputCount | int | Number of images contributing at center, not including anyclipping. Forced on u-band. | |

u_inputCount_flag | boolean | Set for any fatal failure. Forced on u-band. | |

u_inputCount_flag_noInputs | boolean | No coadd inputs available. Forced on u-band. | |

u_ixx | double | pixel^2 | HSM moments. Measured on u-band. |

u_ixxDebiasedPSF | double | pixel^2 | HSM moments. Measured on u-band. |

u_ixxPSF | double | pixel^2 | HSM moments. Measured on u-band. |

u_ixxRound | double | pixel^2 | HSM moments. Measured on u-band. |

u_ixy | double | pixel^2 | HSM moments. Measured on u-band. |

u_ixyDebiasedPSF | double | pixel^2 | HSM moments. Measured on u-band. |

u_ixyPSF | double | pixel^2 | HSM moments. Measured on u-band. |

u_ixyRound | double | pixel^2 | HSM moments. Measured on u-band. |

u_iyy | double | pixel^2 | HSM moments. Measured on u-band. |

u_iyyDebiasedPSF | double | pixel^2 | HSM moments. Measured on u-band. |

u_iyyPSF | double | pixel^2 | HSM moments. Measured on u-band. |

u_iyyRound | double | pixel^2 | HSM moments. Measured on u-band. |

u_kronFlux | double | nJy | Flux from Kron Flux algorithm. Measured on u-band. |

u_kronFluxErr | double | nJy | Flux uncertainty from Kron Flux algorithm. Measured on u-band. |

u_kronFlux_flag | boolean | General failure flag, set if anything went wrong. 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 aperture. Measured on u-band. | |

u_kronFlux_flag_used_psf_radius | boolean | Used the PSF Kron radius for the Kron aperture. Measured on u-band. | |

u_kronRad | float | Kron radius (sqrt(a*b)). Measured on u-band. | |

u_pixelFlags_bad | boolean | Bad pixel in the Source footprint. Measured on u-band. | |

u_pixelFlags_clipped | boolean | Source footprint includes CLIPPED pixels. Measured on u-band. | |

u_pixelFlags_clippedCenter | boolean | Source center is close to CLIPPED pixels. Measured on u-band. | |

u_pixelFlags_cr | boolean | Cosmic ray in the Source footprint. Measured on u-band. | |

u_pixelFlags_crCenter | boolean | Cosmic ray in the Source center. Measured on u-band. | |

u_pixelFlags_edge | boolean | Source is outside usable exposure region (masked EDGE or NO_DATA). Measured on u-band. | |

u_pixelFlags_inexact_psf | boolean | Source footprint includes INEXACT_PSF pixels. Measured on u-band. | |

u_pixelFlags_inexact_psfCenter | boolean | Source center is close to INEXACT_PSF pixels. Measured on u-band. | |

u_pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint. Measured on u-band. | |

u_pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center. Measured on u-band. | |

u_pixelFlags_offimage | boolean | Source center is off image. Measured on u-band. | |

u_pixelFlags_saturated | boolean | Saturated pixel in the Source footprint. Measured on u-band. | |

u_pixelFlags_saturatedCenter | boolean | Saturated pixel in the Source center. Measured on u-band. | |

u_pixelFlags_sensor_edge | boolean | Source footprint includes SENSOR_EDGE pixels. Measured on u-band. | |

u_pixelFlags_sensor_edgeCenter | boolean | Source center is close to SENSOR_EDGE pixels. Measured on u-band. | |

u_pixelFlags_suspect | boolean | Sources footprint includes suspect pixels. Measured on u-band. | |

u_pixelFlags_suspectCenter | boolean | Sources center is close to suspect pixels. Measured on u-band. | |

u_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Forced on u-band. |

u_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. 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 | Set if unable to aperture correct base_PsfFlux. 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_ra | double | deg | Position in ra/dec. Measured on u-band. [pos.eq.ra] |

y_ap03Flux | double | nJy | Flux within 3.0-pixel aperture. Forced on y-band. |

y_ap03FluxErr | double | nJy | Flux uncertainty within 3.0-pixel aperture. Forced on y-band. |

y_ap03Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_ap06Flux | double | nJy | Flux within 6.0-pixel aperture. Forced on y-band. |

y_ap06FluxErr | double | nJy | Flux uncertainty within 6.0-pixel aperture. Forced on y-band. |

y_ap06Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_ap09Flux | double | nJy | Flux within 9.0-pixel aperture. Forced on y-band. |

y_ap09FluxErr | double | nJy | Flux uncertainty within 9.0-pixel aperture. Forced on y-band. |

y_ap09Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_ap12Flux | double | nJy | Flux within 12.0-pixel aperture. Forced on y-band. |

y_ap12FluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Forced on y-band. |

y_ap12Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_ap17Flux | double | nJy | Flux within 17.0-pixel aperture. Forced on y-band. |

y_ap17FluxErr | double | nJy | Flux uncertainty within 17.0-pixel aperture. Forced on y-band. |

y_ap17Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_ap25Flux | double | nJy | Flux within 25.0-pixel aperture. Forced on y-band. |

y_ap25FluxErr | double | nJy | Flux uncertainty within 25.0-pixel aperture. Forced on y-band. |

y_ap25Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_ap35Flux | double | nJy | Flux within 35.0-pixel aperture. Forced on y-band. |

y_ap35FluxErr | double | nJy | Flux uncertainty within 35.0-pixel aperture. Forced on y-band. |

y_ap35Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_ap50Flux | double | nJy | Flux within 50.0-pixel aperture. Forced on y-band. |

y_ap50FluxErr | double | nJy | Flux uncertainty within 50.0-pixel aperture. Forced on y-band. |

y_ap50Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_ap70Flux | double | nJy | Flux within 70.0-pixel aperture. Forced on y-band. |

y_ap70FluxErr | double | nJy | Flux uncertainty within 70.0-pixel aperture. Forced on y-band. |

y_ap70Flux_flag | boolean | General Failure Flag. Forced on y-band. | |

y_apFlux_flag | boolean | General Failure Flag. Measured on y-band. | |

y_apFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on y-band. | |

y_apFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on y-band. | |

y_bdChi2 | double | -ln(likelihood) (chi^2) in cmodel fit. Measured on y-band. | |

y_bdE1 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on y-band. |

y_bdE2 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on y-band. |

y_bdFluxB | double | nJy | Flux from the de Vaucouleur fit. Measured on y-band. |

y_bdFluxBErr | double | nJy | Flux uncertainty from the de Vaucouleur fit. Measured on y-band. |

y_bdFluxD | double | nJy | Flux from the exponential fit. Measured on y-band. |

y_bdFluxDErr | double | nJy | Flux uncertainty from the exponential fit. Measured on y-band. |

y_bdReB | double | pixel^2 | Half-light ellipse of the de Vaucouleur fit. Measured on y-band. |

y_bdReD | double | pixel^2 | Half-light ellipse of the exponential fit. Measured on y-band. |

y_blendedness | 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. Measured on y-band. | |

y_blendedness_flag | boolean | General Failure Flag. Measured on y-band. | |

y_cModelFlux | double | nJy | Flux from the final cmodel fit. Forced on y-band. |

y_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. Forced on y-band. |

y_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. 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 | Set if unable to aperture correct modelfit_CModel. Forced on y-band. | |

y_calibFlux | double | nJy | Flux within 12.0-pixel aperture. Measured on y-band. |

y_calibFluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Measured on y-band. |

y_calibFlux_flag | boolean | General Failure Flag. Measured on y-band. | |

y_calibFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on y-band. | |

y_calibFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on y-band. | |

y_calib_astrometry_used | boolean | Propagated from sources. Measured on y-band. | |

y_calib_photometry_reserved | 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_centroid_flag | boolean | General Failure Flag. Measured on y-band. | |

y_centroid_x | double | pixel | Centroid from Sdss Centroid algorithm. Measured on y-band. |

y_centroid_xErr | float | pixel | 1-sigma uncertainty on x position. Measured on y-band. |

y_centroid_y | double | pixel | Centroid from Sdss Centroid algorithm. Measured on y-band. |

y_centroid_yErr | float | pixel | 1-sigma uncertainty on y position. Measured on y-band. |

y_decl | double | deg | Position in ra/dec. Measured on y-band. [pos.eq.dec] |

y_extendedness | double | Set to 1 for extended sources, 0 for point sources. Measured on y-band. | |

y_extendedness_flag | boolean | Set to 1 for any fatal failure. Measured on y-band. | |

y_free_cModelFlux | double | nJy | Flux from the final cmodel fit. Measured on y-band. |

y_free_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. 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_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. Measured on y-band. |

y_free_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Measured on y-band. |

y_free_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. Measured on y-band. |

y_free_psfFlux_flag | boolean | General Failure Flag. Measured on y-band. | |

y_fwhm | double | pixel^2 | HSM moments. Measured on y-band. |

y_gaap0p5Flux | double | nJy | GAaP Flux with 0.5 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap0p5FluxErr | double | nJy | GAaP Flux uncertainty with 0.5 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap0p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on y-band. | |

y_gaap0p7Flux | double | nJy | GAaP Flux with 0.7 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap0p7FluxErr | double | nJy | GAaP Flux uncertainty with 0.7 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap0p7Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on y-band. | |

y_gaap1p0Flux | double | nJy | GAaP Flux with 1.0 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap1p0FluxErr | double | nJy | GAaP Flux uncertainty with 1.0 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap1p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on y-band. | |

y_gaap1p5Flux | double | nJy | GAaP Flux with 1.5 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap1p5FluxErr | double | nJy | GAaP Flux uncertainty with 1.5 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap1p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on y-band. | |

y_gaap2p5Flux | double | nJy | GAaP Flux with 2.5 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap2p5FluxErr | double | nJy | GAaP Flux uncertainty with 2.5 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap2p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on y-band. | |

y_gaap3p0Flux | double | nJy | GAaP Flux with 3.0 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap3p0FluxErr | double | nJy | GAaP Flux uncertainty with 3.0 aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaap3p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on y-band. | |

y_gaapFlux_flag | boolean | Set for any fatal failure. Forced on y-band. | |

y_gaapFlux_flag_edge | boolean | Source is too close to the edge. Forced on y-band. | |

y_gaapFlux_flag_gaussianization | boolean | PSF Gaussianization failed when trying to scale by this factor. Forced on y-band. | |

y_gaapOptimalFlux | double | nJy | GAaP Flux with optimal aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaapOptimalFluxErr | double | nJy | GAaP Flux uncertainty with optimal aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaapOptimalFlux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on y-band. | |

y_gaapPsfFlux | double | nJy | GAaP Flux with PSF aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_gaapPsfFluxErr | double | nJy | GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on y-band. |

y_hsmShapeRegauss_e1 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on y-band. | |

y_hsmShapeRegauss_e2 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on y-band. | |

y_hsmShapeRegauss_flag | boolean | General failure flag, set if anything went wrong. Measured on y-band. | |

y_hsmShapeRegauss_sigma | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on y-band. | |

y_iDebiasedPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on y-band. | |

y_iPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on y-band. | |

y_iRound_flag | double | pixel^2 | HSM moments. Measured on y-band. |

y_i_flag | boolean | General failure flag, set if anything went wrong. Measured on y-band. | |

y_inputCount | int | Number of images contributing at center, not including anyclipping. Forced on y-band. | |

y_inputCount_flag | boolean | Set for any fatal failure. Forced on y-band. | |

y_inputCount_flag_noInputs | boolean | No coadd inputs available. Forced on y-band. | |

y_ixx | double | pixel^2 | HSM moments. Measured on y-band. |

y_ixxDebiasedPSF | double | pixel^2 | HSM moments. Measured on y-band. |

y_ixxPSF | double | pixel^2 | HSM moments. Measured on y-band. |

y_ixxRound | double | pixel^2 | HSM moments. Measured on y-band. |

y_ixy | double | pixel^2 | HSM moments. Measured on y-band. |

y_ixyDebiasedPSF | double | pixel^2 | HSM moments. Measured on y-band. |

y_ixyPSF | double | pixel^2 | HSM moments. Measured on y-band. |

y_ixyRound | double | pixel^2 | HSM moments. Measured on y-band. |

y_iyy | double | pixel^2 | HSM moments. Measured on y-band. |

y_iyyDebiasedPSF | double | pixel^2 | HSM moments. Measured on y-band. |

y_iyyPSF | double | pixel^2 | HSM moments. Measured on y-band. |

y_iyyRound | double | pixel^2 | HSM moments. Measured on y-band. |

y_kronFlux | double | nJy | Flux from Kron Flux algorithm. Measured on y-band. |

y_kronFluxErr | double | nJy | Flux uncertainty from Kron Flux algorithm. Measured on y-band. |

y_kronFlux_flag | boolean | General failure flag, set if anything went wrong. 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 aperture. Measured on y-band. | |

y_kronFlux_flag_used_psf_radius | boolean | Used the PSF Kron radius for the Kron aperture. Measured on y-band. | |

y_kronRad | float | Kron radius (sqrt(a*b)). Measured on y-band. | |

y_pixelFlags_bad | boolean | Bad pixel in the Source footprint. Measured on y-band. | |

y_pixelFlags_clipped | boolean | Source footprint includes CLIPPED pixels. Measured on y-band. | |

y_pixelFlags_clippedCenter | boolean | Source center is close to CLIPPED pixels. Measured on y-band. | |

y_pixelFlags_cr | boolean | Cosmic ray in the Source footprint. Measured on y-band. | |

y_pixelFlags_crCenter | boolean | Cosmic ray in the Source center. Measured on y-band. | |

y_pixelFlags_edge | boolean | Source is outside usable exposure region (masked EDGE or NO_DATA). Measured on y-band. | |

y_pixelFlags_inexact_psf | boolean | Source footprint includes INEXACT_PSF pixels. Measured on y-band. | |

y_pixelFlags_inexact_psfCenter | boolean | Source center is close to INEXACT_PSF pixels. Measured on y-band. | |

y_pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint. Measured on y-band. | |

y_pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center. Measured on y-band. | |

y_pixelFlags_offimage | boolean | Source center is off image. Measured on y-band. | |

y_pixelFlags_saturated | boolean | Saturated pixel in the Source footprint. Measured on y-band. | |

y_pixelFlags_saturatedCenter | boolean | Saturated pixel in the Source center. Measured on y-band. | |

y_pixelFlags_sensor_edge | boolean | Source footprint includes SENSOR_EDGE pixels. Measured on y-band. | |

y_pixelFlags_sensor_edgeCenter | boolean | Source center is close to SENSOR_EDGE pixels. Measured on y-band. | |

y_pixelFlags_suspect | boolean | Sources footprint includes suspect pixels. Measured on y-band. | |

y_pixelFlags_suspectCenter | boolean | Sources center is close to suspect pixels. Measured on y-band. | |

y_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Forced on y-band. |

y_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. 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 | Set if unable to aperture correct base_PsfFlux. 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_ra | double | deg | Position in ra/dec. Measured on y-band. [pos.eq.ra] |

z_ap03Flux | double | nJy | Flux within 3.0-pixel aperture. Forced on z-band. |

z_ap03FluxErr | double | nJy | Flux uncertainty within 3.0-pixel aperture. Forced on z-band. |

z_ap03Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_ap06Flux | double | nJy | Flux within 6.0-pixel aperture. Forced on z-band. |

z_ap06FluxErr | double | nJy | Flux uncertainty within 6.0-pixel aperture. Forced on z-band. |

z_ap06Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_ap09Flux | double | nJy | Flux within 9.0-pixel aperture. Forced on z-band. |

z_ap09FluxErr | double | nJy | Flux uncertainty within 9.0-pixel aperture. Forced on z-band. |

z_ap09Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_ap12Flux | double | nJy | Flux within 12.0-pixel aperture. Forced on z-band. |

z_ap12FluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Forced on z-band. |

z_ap12Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_ap17Flux | double | nJy | Flux within 17.0-pixel aperture. Forced on z-band. |

z_ap17FluxErr | double | nJy | Flux uncertainty within 17.0-pixel aperture. Forced on z-band. |

z_ap17Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_ap25Flux | double | nJy | Flux within 25.0-pixel aperture. Forced on z-band. |

z_ap25FluxErr | double | nJy | Flux uncertainty within 25.0-pixel aperture. Forced on z-band. |

z_ap25Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_ap35Flux | double | nJy | Flux within 35.0-pixel aperture. Forced on z-band. |

z_ap35FluxErr | double | nJy | Flux uncertainty within 35.0-pixel aperture. Forced on z-band. |

z_ap35Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_ap50Flux | double | nJy | Flux within 50.0-pixel aperture. Forced on z-band. |

z_ap50FluxErr | double | nJy | Flux uncertainty within 50.0-pixel aperture. Forced on z-band. |

z_ap50Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_ap70Flux | double | nJy | Flux within 70.0-pixel aperture. Forced on z-band. |

z_ap70FluxErr | double | nJy | Flux uncertainty within 70.0-pixel aperture. Forced on z-band. |

z_ap70Flux_flag | boolean | General Failure Flag. Forced on z-band. | |

z_apFlux_flag | boolean | General Failure Flag. Measured on z-band. | |

z_apFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on z-band. | |

z_apFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on z-band. | |

z_bdChi2 | double | -ln(likelihood) (chi^2) in cmodel fit. Measured on z-band. | |

z_bdE1 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on z-band. |

z_bdE2 | double | pixel^2 | FracDev-weighted average of exp.ellipse and dev.ellipse. Measured on z-band. |

z_bdFluxB | double | nJy | Flux from the de Vaucouleur fit. Measured on z-band. |

z_bdFluxBErr | double | nJy | Flux uncertainty from the de Vaucouleur fit. Measured on z-band. |

z_bdFluxD | double | nJy | Flux from the exponential fit. Measured on z-band. |

z_bdFluxDErr | double | nJy | Flux uncertainty from the exponential fit. Measured on z-band. |

z_bdReB | double | pixel^2 | Half-light ellipse of the de Vaucouleur fit. Measured on z-band. |

z_bdReD | double | pixel^2 | Half-light ellipse of the exponential fit. Measured on z-band. |

z_blendedness | 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. Measured on z-band. | |

z_blendedness_flag | boolean | General Failure Flag. Measured on z-band. | |

z_cModelFlux | double | nJy | Flux from the final cmodel fit. Forced on z-band. |

z_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. Forced on z-band. |

z_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. 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 | Set if unable to aperture correct modelfit_CModel. Forced on z-band. | |

z_calibFlux | double | nJy | Flux within 12.0-pixel aperture. Measured on z-band. |

z_calibFluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture. Measured on z-band. |

z_calibFlux_flag | boolean | General Failure Flag. Measured on z-band. | |

z_calibFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image. Measured on z-band. | |

z_calibFlux_flag_sincCoeffsTruncated | boolean | Full sinc coefficient image did not fit within measurement image. Measured on z-band. | |

z_calib_astrometry_used | boolean | Propagated from sources. Measured on z-band. | |

z_calib_photometry_reserved | 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_centroid_flag | boolean | General Failure Flag. Measured on z-band. | |

z_centroid_x | double | pixel | Centroid from Sdss Centroid algorithm. Measured on z-band. |

z_centroid_xErr | float | pixel | 1-sigma uncertainty on x position. Measured on z-band. |

z_centroid_y | double | pixel | Centroid from Sdss Centroid algorithm. Measured on z-band. |

z_centroid_yErr | float | pixel | 1-sigma uncertainty on y position. Measured on z-band. |

z_decl | double | deg | Position in ra/dec. Measured on z-band. [pos.eq.dec] |

z_extendedness | double | Set to 1 for extended sources, 0 for point sources. Measured on z-band. | |

z_extendedness_flag | boolean | Set to 1 for any fatal failure. Measured on z-band. | |

z_free_cModelFlux | double | nJy | Flux from the final cmodel fit. Measured on z-band. |

z_free_cModelFluxErr | double | nJy | Flux uncertainty from the final cmodel fit. 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_cModelFlux_inner | double | nJy | Flux within the fit region, with no extrapolation. Measured on z-band. |

z_free_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Measured on z-band. |

z_free_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. Measured on z-band. |

z_free_psfFlux_flag | boolean | General Failure Flag. Measured on z-band. | |

z_fwhm | double | pixel^2 | HSM moments. Measured on z-band. |

z_gaap0p5Flux | double | nJy | GAaP Flux with 0.5 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap0p5FluxErr | double | nJy | GAaP Flux uncertainty with 0.5 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap0p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on z-band. | |

z_gaap0p7Flux | double | nJy | GAaP Flux with 0.7 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap0p7FluxErr | double | nJy | GAaP Flux uncertainty with 0.7 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap0p7Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on z-band. | |

z_gaap1p0Flux | double | nJy | GAaP Flux with 1.0 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap1p0FluxErr | double | nJy | GAaP Flux uncertainty with 1.0 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap1p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on z-band. | |

z_gaap1p5Flux | double | nJy | GAaP Flux with 1.5 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap1p5FluxErr | double | nJy | GAaP Flux uncertainty with 1.5 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap1p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on z-band. | |

z_gaap2p5Flux | double | nJy | GAaP Flux with 2.5 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap2p5FluxErr | double | nJy | GAaP Flux uncertainty with 2.5 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap2p5Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on z-band. | |

z_gaap3p0Flux | double | nJy | GAaP Flux with 3.0 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap3p0FluxErr | double | nJy | GAaP Flux uncertainty with 3.0 aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaap3p0Flux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on z-band. | |

z_gaapFlux_flag | boolean | Set for any fatal failure. Forced on z-band. | |

z_gaapFlux_flag_edge | boolean | Source is too close to the edge. Forced on z-band. | |

z_gaapFlux_flag_gaussianization | boolean | PSF Gaussianization failed when trying to scale by this factor. Forced on z-band. | |

z_gaapOptimalFlux | double | nJy | GAaP Flux with optimal aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaapOptimalFluxErr | double | nJy | GAaP Flux uncertainty with optimal aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaapOptimalFlux_flag_bigPsf | boolean | The Gaussianized PSF is bigger than the aperture. Forced on z-band. | |

z_gaapPsfFlux | double | nJy | GAaP Flux with PSF aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_gaapPsfFluxErr | double | nJy | GAaP Flux uncertainty with PSF aperture after multiplying the seeing by 1.15. Forced on z-band. |

z_hsmShapeRegauss_e1 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on z-band. | |

z_hsmShapeRegauss_e2 | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on z-band. | |

z_hsmShapeRegauss_flag | boolean | General failure flag, set if anything went wrong. Measured on z-band. | |

z_hsmShapeRegauss_sigma | double | PSF-corrected shear using Hirata & Seljak (2003) regaussianization. Measured on z-band. | |

z_iDebiasedPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on z-band. | |

z_iPSF_flag | boolean | General failure flag, set if anything went wrong. Measured on z-band. | |

z_iRound_flag | double | pixel^2 | HSM moments. Measured on z-band. |

z_i_flag | boolean | General failure flag, set if anything went wrong. Measured on z-band. | |

z_inputCount | int | Number of images contributing at center, not including anyclipping. Forced on z-band. | |

z_inputCount_flag | boolean | Set for any fatal failure. Forced on z-band. | |

z_inputCount_flag_noInputs | boolean | No coadd inputs available. Forced on z-band. | |

z_ixx | double | pixel^2 | HSM moments. Measured on z-band. |

z_ixxDebiasedPSF | double | pixel^2 | HSM moments. Measured on z-band. |

z_ixxPSF | double | pixel^2 | HSM moments. Measured on z-band. |

z_ixxRound | double | pixel^2 | HSM moments. Measured on z-band. |

z_ixy | double | pixel^2 | HSM moments. Measured on z-band. |

z_ixyDebiasedPSF | double | pixel^2 | HSM moments. Measured on z-band. |

z_ixyPSF | double | pixel^2 | HSM moments. Measured on z-band. |

z_ixyRound | double | pixel^2 | HSM moments. Measured on z-band. |

z_iyy | double | pixel^2 | HSM moments. Measured on z-band. |

z_iyyDebiasedPSF | double | pixel^2 | HSM moments. Measured on z-band. |

z_iyyPSF | double | pixel^2 | HSM moments. Measured on z-band. |

z_iyyRound | double | pixel^2 | HSM moments. Measured on z-band. |

z_kronFlux | double | nJy | Flux from Kron Flux algorithm. Measured on z-band. |

z_kronFluxErr | double | nJy | Flux uncertainty from Kron Flux algorithm. Measured on z-band. |

z_kronFlux_flag | boolean | General failure flag, set if anything went wrong. 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 aperture. Measured on z-band. | |

z_kronFlux_flag_used_psf_radius | boolean | Used the PSF Kron radius for the Kron aperture. Measured on z-band. | |

z_kronRad | float | Kron radius (sqrt(a*b)). Measured on z-band. | |

z_pixelFlags_bad | boolean | Bad pixel in the Source footprint. Measured on z-band. | |

z_pixelFlags_clipped | boolean | Source footprint includes CLIPPED pixels. Measured on z-band. | |

z_pixelFlags_clippedCenter | boolean | Source center is close to CLIPPED pixels. Measured on z-band. | |

z_pixelFlags_cr | boolean | Cosmic ray in the Source footprint. Measured on z-band. | |

z_pixelFlags_crCenter | boolean | Cosmic ray in the Source center. Measured on z-band. | |

z_pixelFlags_edge | boolean | Source is outside usable exposure region (masked EDGE or NO_DATA). Measured on z-band. | |

z_pixelFlags_inexact_psf | boolean | Source footprint includes INEXACT_PSF pixels. Measured on z-band. | |

z_pixelFlags_inexact_psfCenter | boolean | Source center is close to INEXACT_PSF pixels. Measured on z-band. | |

z_pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint. Measured on z-band. | |

z_pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center. Measured on z-band. | |

z_pixelFlags_offimage | boolean | Source center is off image. Measured on z-band. | |

z_pixelFlags_saturated | boolean | Saturated pixel in the Source footprint. Measured on z-band. | |

z_pixelFlags_saturatedCenter | boolean | Saturated pixel in the Source center. Measured on z-band. | |

z_pixelFlags_sensor_edge | boolean | Source footprint includes SENSOR_EDGE pixels. Measured on z-band. | |

z_pixelFlags_sensor_edgeCenter | boolean | Source center is close to SENSOR_EDGE pixels. Measured on z-band. | |

z_pixelFlags_suspect | boolean | Sources footprint includes suspect pixels. Measured on z-band. | |

z_pixelFlags_suspectCenter | boolean | Sources center is close to suspect pixels. Measured on z-band. | |

z_psfFlux | double | nJy | Flux derived from linear least-squares fit of PSF model. Forced on z-band. |

z_psfFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model. 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 | Set if unable to aperture correct base_PsfFlux. 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_ra | double | deg | Position in ra/dec. Measured on z-band. [pos.eq.ra] |

## 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] |
---|---|---|---|

sourceId | long | Unique id. Unique Source ID. Primary Key. [meta.id;src] | |

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] |

ccdVisitId | long | Unique ID of CCD and visit where this source was detected and measured. Primary Key of the CcdVisit Table. | |

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 ra/dec [pos.eq.ra] |

decl | double | deg | Position in ra/dec [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 |

gaussianFlux | double | nJy | Flux from Gaussian Flux algorithm |

gaussianFluxErr | double | nJy | Flux uncertainty from Gaussian Flux algorithm |

extendedness | double | Set to 1 for extended sources, 0 for point sources. | |

localPhotoCalib | double | Local approximation of the PhotoCalib calibration factor at the location of the src. | |

localPhotoCalib_flag | boolean | Set for any fatal failure | |

localPhotoCalibErr | double | Error on the local approximation of the PhotoCalib calibration factor at the location of the src. | |

localWcs_flag | boolean | Set for any fatal failure | |

localWcs_CDMatrix_2_1 | double | (2, 1) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. | |

localWcs_CDMatrix_1_1 | double | (1, 1) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. | |

localWcs_CDMatrix_1_2 | double | (1, 2) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. | |

localWcs_CDMatrix_2_2 | double | (2, 2) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. | |

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 |

extendedness_flag | boolean | Set to 1 for any fatal failure. | |

footprintArea_value | int | pixel | Number of pixels in the sources detection footprint. |

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 outside usable exposure region (masked EDGE or NO_DATA) | |

pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint | |

pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center | |

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_detected | boolean | Source was detected as an icSource | |

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 | |

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. | |

detect_isPrimary | boolean | True if Object seed 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 a sky object | |

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 | |

instrument | char | ID of instrument, the entity that produces observations. | |

detector | long | Detector ID. A detector associated with a particular instrument (not an observation of that detector) | |

physical_filter | char | ID of physical filter, the filter associated with a particular instrument. | |

visit_system | long | ID of visit system, the system of self-consistent visit definitions | |

visit | long | ID of visit, the identifier for an observation within a sequence of observations. |

## 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] |
---|---|---|---|

forcedSourceId | long | Unique ID of forced source. Primary Key. [meta.id;meta.main] | |

objectId | long | Unique Object ID. Primary Key of the Object Table [meta.id] | |

parentObjectId | long | Unique ObjectId of the parent of the ObjectId in context of the deblender. [meta.id.parent] | |

coord_ra | double | deg | Fiducial ICRS Right Ascension of Object centroid used for database indexing [pos.eq.ra;meta.main] |

coord_dec | double | deg | Fiducial ICRS Declination of Object centroid used for database indexing [pos.eq.dec;meta.main] |

skymap | char | Name of skymap used for coadd projection | |

tract | long | Skymap tract ID [meta.id] | |

patch | long | Skymap patch ID [meta.id.part] | |

band | char | Abstract filter that is not associated with a particular instrument [meta.id;instr.filter] | |

ccdVisitId | long | Unique ID of visit and detector for which forced photometry was performed. Primary Key of the CcdVisit Table. [meta.id;obs.image] | |

detect_isPatchInner | boolean | True if Object seed is in the inner region of a coadd patch [meta.code] | |

detect_isPrimary | boolean | True if Object seed 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 a sky object [meta.code.qual] | |

detect_isTractInner | boolean | True if Object seed is in the inner region of a coadd tract [meta.code] | |

localBackground_instFluxErr | double | count | 1-sigma uncertainty on the background in an annulus around source [phot.count;stat.error] |

localBackground_instFlux | double | count | Background in annulus around source [phot.count] |

localPhotoCalibErr | double | Error on the local approximation of the PhotoCalib calibration factor at the location of the src. [phot.calib;stat.error] | |

localPhotoCalib_flag | boolean | Set for any fatal failure [meta.code.qual] | |

localPhotoCalib | double | Local approximation of the PhotoCalib calibration factor at the location of the src. [phot.calib] | |

localWcs_CDMatrix_1_1 | double | (1, 1) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. [pos.wcs.cdmatrix] | |

localWcs_CDMatrix_1_2 | double | (1, 2) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. [pos.wcs.cdmatrix] | |

localWcs_CDMatrix_2_1 | double | (2, 1) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. [pos.wcs.cdmatrix] | |

localWcs_CDMatrix_2_2 | double | (2, 2) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. [pos.wcs.cdmatrix] | |

localWcs_flag | boolean | Set for any fatal failure [meta.code.qual] | |

pixelFlags_bad | boolean | Bad pixel in the Source footprint [meta.code.qual;instr.pixel] | |

pixelFlags_crCenter | boolean | Cosmic ray in the Source center [meta.code.qual;instr.pixel] | |

pixelFlags_cr | boolean | Cosmic ray in the Source footprint [meta.code.qual;instr.pixel] | |

pixelFlags_edge | boolean | Source is outside usable exposure region (masked EDGE or NO_DATA) [meta.code.qual;instr.pixel] | |

pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center [meta.code.qual;instr.pixel] | |

pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint [meta.code.qual;instr.pixel] | |

pixelFlags_saturatedCenter | boolean | Saturated pixel in the Source center [meta.code.qual;instr.pixel] | |

pixelFlags_saturated | boolean | Saturated pixel in the Source footprint [meta.code.qual;instr.pixel] | |

pixelFlags_suspectCenter | boolean | Sources center is close to suspect pixels [meta.code.qual;instr.pixel] | |

pixelFlags_suspect | boolean | Sources footprint includes suspect pixels [meta.code.qual;instr.pixel] | |

psfDiffFluxErr | double | nJy | Uncertainty on the flux derived from linear least-squares fit of psf model forced on the image difference [phot.flux;stat.error] |

psfDiffFlux_flag | boolean | Failure to derive linear least-squares fit of psf model forced on the image difference [meta.code.qual] | |

psfDiffFlux | double | nJy | Flux derived from linear least-squares fit of psf model forced on the image difference [phot.flux] |

psfFluxErr | double | nJy | Uncertainty on the flux derived from linear least-squares fit of psf model forced on the calexp [phot.flux;stat.error] |

psfFlux_flag | boolean | Failure to derive linear least-squares fit of psf model forced on the calexp [meta.code.qual] | |

psfFlux | double | nJy | Flux derived from linear least-squares fit of psf model forced on the calexp [phot.flux] |

## 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] |
---|---|---|---|

decl | double | deg | Declination coordinate of the position of the diaObject at time radecTai [pos.eq.dec;meta.main] |

diaObjectId | long | Unique id. | |

gPSFluxChi2 | double | Chi^2 statistic for the scatter of gPSFlux around gPSFluxMean | |

gPSFluxErrMean | double | Mean of the diaSource PSF flux errors | |

gPSFluxLinearIntercept | double | y-intercept of a linear model fit to diaSource PSF flux vs time | |

gPSFluxLinearSlope | double | Slope of a linear model fit to diaSource PSF flux vs time | |

gPSFluxMAD | double | Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma | |

gPSFluxMax | double | Maximum diaSource PSF flux | |

gPSFluxMaxSlope | double | Maximum ratio of time ordered deltaFlux / deltaTime | |

gPSFluxMean | double | Weighted mean of diaSource PSF flux | |

gPSFluxMeanErr | double | Standard error on the weighted mean of diaSource PSF flux | |

gPSFluxMin | double | Minimum diaSource PSF flux | |

gPSFluxNdata | double | The number of data points used to compute gPSFluxChi2 | |

gPSFluxPercentile05 | double | 5th percentile diaSource PSF flux | |

gPSFluxPercentile25 | double | 10th percentile diaSource PSF flux | |

gPSFluxPercentile50 | double | Median diaSource PSF flux | |

gPSFluxPercentile75 | double | 75th percentile diaSource PSF flux | |

gPSFluxPercentile95 | double | 95th percentile diaSource PSF flux | |

gPSFluxSigma | double | Standard deviation of the distribution of gPSFlux | |

gPSFluxSkew | double | Skew of diaSource PSF flux | |

gPSFluxStetsonJ | double | StetsonJ statistic of diaSource PSF flux | |

gTOTFluxMean | double | Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image | |

gTOTFluxMeanErr | double | Standard error on gTOTFluxMean | |

gTOTFluxSigma | double | Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image | |

iPSFluxChi2 | double | Chi^2 statistic for the scatter of iPSFlux around iPSFluxMean | |

iPSFluxErrMean | double | Mean of the diaSource PSF flux errors | |

iPSFluxLinearIntercept | double | y-intercept of a linear model fit to diaSource PSF flux vs time | |

iPSFluxLinearSlope | double | Slope of a linear model fit to diaSource PSF flux vs time | |

iPSFluxMAD | double | Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma | |

iPSFluxMax | double | Maximum diaSource PSF flux | |

iPSFluxMaxSlope | double | Maximum ratio of time ordered deltaFlux / deltaTime | |

iPSFluxMean | double | Weighted mean of diaSource PSF flux | |

iPSFluxMeanErr | double | Standard error on the weighted mean of diaSource PSF flux | |

iPSFluxMin | double | Minimum diaSource PSF flux | |

iPSFluxNdata | double | The number of data points used to compute iPSFluxChi2 | |

iPSFluxPercentile05 | double | 5th percentile diaSource PSF flux | |

iPSFluxPercentile25 | double | 10th percentile diaSource PSF flux | |

iPSFluxPercentile50 | double | Median diaSource PSF flux | |

iPSFluxPercentile75 | double | 75th percentile diaSource PSF flux | |

iPSFluxPercentile95 | double | 95th percentile diaSource PSF flux | |

iPSFluxSigma | double | Standard deviation of the distribution of iPSFlux | |

iPSFluxSkew | double | Skew of diaSource PSF flux | |

iPSFluxStetsonJ | double | StetsonJ statistic of diaSource PSF flux | |

iTOTFluxMean | double | Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image | |

iTOTFluxMeanErr | double | Standard error on iTOTFluxMean | |

iTOTFluxSigma | double | Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image | |

nDiaSources | long | Number of diaSources associated with this diaObject | |

pixelId | double | HtmIndex20 of ra, decl coordinate | |

rPSFluxChi2 | double | Chi^2 statistic for the scatter of rPSFlux around rPSFluxMean | |

rPSFluxErrMean | double | Mean of the diaSource PSF flux errors | |

rPSFluxLinearIntercept | double | y-intercept of a linear model fit to diaSource PSF flux vs time | |

rPSFluxLinearSlope | double | Slope of a linear model fit to diaSource PSF flux vs time | |

rPSFluxMAD | double | Median absolute deviation of diaSource PSF flux. Does not include scale factor for comparison to sigma | |

rPSFluxMax | double | Maximum diaSource PSF flux | |

rPSFluxMaxSlope | double | Maximum ratio of time ordered deltaFlux / deltaTime | |

rPSFluxMean | double | Weighted mean of diaSource PSF flux | |

rPSFluxMeanErr | double | Standard error on the weighted mean of diaSource PSF flux | |

rPSFluxMin | double | Minimum diaSource PSF flux | |

rPSFluxNdata | double | The number of data points used to compute rPSFluxChi2 | |

rPSFluxPercentile05 | double | 5th percentile diaSource PSF flux | |

rPSFluxPercentile25 | double | 10th percentile diaSource PSF flux | |

rPSFluxPercentile50 | double | Median diaSource PSF flux | |

rPSFluxPercentile75 | double | 75th percentile diaSource PSF flux | |

rPSFluxPercentile95 | double | 95th percentile diaSource PSF flux | |

rPSFluxSigma | double | Standard deviation of the distribution of rPSFlux | |

rPSFluxSkew | double | Skew of diaSource PSF flux | |

rPSFluxStetsonJ | double | StetsonJ statistic of diaSource PSF flux | |

rTOTFluxMean | double | Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image | |

rTOTFluxMeanErr | double | Standard error on rTOTFluxMean | |

rTOTFluxSigma | double | Standard deviation of the PSF flux forced photometered at the diaSource position on the calibrated image | |

ra | double | deg | Right Ascension coordinate of the position of the diaObject at time radecTai. [pos.eq.ra;meta.main] |

radecTai | double | Time at which the object was at a position ra/decl. | |

uPSFluxChi2 | double | Chi^2 statistic for the scatter of uPSFlux around uPSFluxMean | |

uPSFluxErrMean | double | Mean of the diaSource PSF flux errors | |

uPSFluxLinearIntercept | double | y-intercept of a linear model fit to diaSource PSF flux vs time | |

uPSFluxLinearSlope | double | Slope of a linear model fit to diaSource PSF flux vs time | |

uPSFluxMAD | double | ||

uPSFluxMax | double | Maximum diaSource PSF flux | |

uPSFluxMaxSlope | double | Maximum ratio of time ordered deltaFlux / deltaTime | |

uPSFluxMean | double | Weighted mean of diaSource PSF flux | |

uPSFluxMeanErr | double | Standard error on the weighted mean of diaSource PSF flux | |

uPSFluxMin | double | Minimum diaSource PSF flux | |

uPSFluxNdata | double | The number of data points used to compute uPSFluxChi2 | |

uPSFluxPercentile05 | double | 5th percentile diaSource PSF flux | |

uPSFluxPercentile25 | double | 10th percentile diaSource PSF flux | |

uPSFluxPercentile50 | double | Median diaSource PSF flux | |

uPSFluxPercentile75 | double | 75th percentile diaSource PSF flux | |

uPSFluxPercentile95 | double | 95th percentile diaSource PSF flux | |

uPSFluxSigma | double | Standard deviation of the distribution of uPSFlux | |

uPSFluxSkew | double | Skew of diaSource PSF flux | |

uPSFluxStetsonJ | double | StetsonJ statistic of diaSource PSF flux | |

uTOTFluxMean | double | Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image | |

uTOTFluxMeanErr | double | Standard error on uTOTFluxMean | |

uTOTFluxSigma | double | ||

yPSFluxChi2 | double | Chi^2 statistic for the scatter of yPSFlux around yPSFluxMean | |

yPSFluxErrMean | double | Mean of the diaSource PSF flux errors | |

yPSFluxLinearIntercept | double | y-intercept of a linear model fit to diaSource PSF flux vs time | |

yPSFluxLinearSlope | double | Slope of a linear model fit to diaSource PSF flux vs time | |

yPSFluxMAD | double | ||

yPSFluxMax | double | Maximum diaSource PSF flux | |

yPSFluxMaxSlope | double | Maximum ratio of time ordered deltaFlux / deltaTime | |

yPSFluxMean | double | Weighted mean of diaSource PSF flux | |

yPSFluxMeanErr | double | Standard error on the weighted mean of diaSource PSF flux | |

yPSFluxMin | double | Minimum diaSource PSF flux | |

yPSFluxNdata | double | The number of data points used to compute yPSFluxChi2 | |

yPSFluxPercentile05 | double | 5th percentile diaSource PSF flux | |

yPSFluxPercentile25 | double | 10th percentile diaSource PSF flux | |

yPSFluxPercentile50 | double | Median diaSource PSF flux | |

yPSFluxPercentile75 | double | 75th percentile diaSource PSF flux | |

yPSFluxPercentile95 | double | 95th percentile diaSource PSF flux | |

yPSFluxSigma | double | Standard deviation of the distribution of yPSFlux | |

yPSFluxSkew | double | Skew of diaSource PSF flux | |

yPSFluxStetsonJ | double | StetsonJ statistic of diaSource PSF flux | |

yTOTFluxMean | double | Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image | |

yTOTFluxMeanErr | double | Standard error on yTOTFluxMean | |

yTOTFluxSigma | double | ||

zPSFluxChi2 | double | Chi^2 statistic for the scatter of zPSFlux around zPSFluxMean | |

zPSFluxErrMean | double | Mean of the diaSource PSF flux errors | |

zPSFluxLinearIntercept | double | y-intercept of a linear model fit to diaSource PSF flux vs time | |

zPSFluxLinearSlope | double | Slope of a linear model fit to diaSource PSF flux vs time | |

zPSFluxMAD | double | ||

zPSFluxMax | double | Maximum diaSource PSF flux | |

zPSFluxMaxSlope | double | Maximum ratio of time ordered deltaFlux / deltaTime | |

zPSFluxMean | double | Weighted mean of diaSource PSF flux | |

zPSFluxMeanErr | double | Standard error on the weighted mean of diaSource PSF flux | |

zPSFluxMin | double | Minimum diaSource PSF flux | |

zPSFluxNdata | double | The number of data points used to compute zPSFluxChi2 | |

zPSFluxPercentile05 | double | 5th percentile diaSource PSF flux | |

zPSFluxPercentile25 | double | 10th percentile diaSource PSF flux | |

zPSFluxPercentile50 | double | Median diaSource PSF flux | |

zPSFluxPercentile75 | double | 75th percentile diaSource PSF flux | |

zPSFluxPercentile95 | double | 95th percentile diaSource PSF flux | |

zPSFluxSigma | double | Standard deviation of the distribution of zPSFlux | |

zPSFluxSkew | double | Skew of diaSource PSF flux | |

zPSFluxStetsonJ | double | StetsonJ statistic of diaSource PSF flux | |

zTOTFluxMean | double | Weighted mean of the PSF flux forced photometered at the diaSource position on the calibrated image | |

zTOTFluxMeanErr | double | Standard error on zTOTFluxMean | |

zTOTFluxSigma | double |

## DiaSource

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

Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|

apFlux | double | nJy | Flux within 12.0-pixel aperture |

apFluxErr | double | nJy | Flux uncertainty within 12.0-pixel aperture |

apFlux_flag | boolean | General Failure Flag | |

apFlux_flag_apertureTruncated | boolean | Aperture did not fit within measurement image | |

bboxSize | long | Bounding box of diaSource footprint | |

ccdVisitId | long | Unique ID of CCD and visit where this source was detected and measured. Primary Key of the CcdVisit Table. | |

centroid_flag | boolean | General failure flag, set if anything went wrong | |

centroid_neg_flag | boolean | Failure flag for negative, set if anything went wrong | |

centroid_pos_flag | boolean | Failure flag for positive, set if anything went wrong | |

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] |

decl | double | deg | Position in ra/dec [pos.eq.dec] |

diaObjectId | long | Unique DiaObject ID. Primary Key of the DIA Object Table | |

diaSourceId | long | Unique ID | |

dipAngle | double | deg | Dipole orientation |

dipChi2 | double | Chi2 per degree of freedom of dipole fit | |

dipFluxDiff | double | nJy | Raw flux counts, positive lobe |

dipFluxDiffErr | double | nJy | Raw flux uncertainty counts, positive lobe |

dipLength | double | pixel | Pixel separation between positive and negative lobes of dipole |

dipMeanFlux | double | count | Raw flux counts, positive lobe |

dipMeanFluxErr | double | count | Raw flux uncertainty counts, positive lobe |

filterName | char | Band used to take this observation | |

forced_PsfFlux_flag | boolean | Forced PSF flux general failure flag. | |

forced_PsfFlux_flag_edge | boolean | Forced PSF flux object 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. | |

isDipole | boolean | Flag indicating diaSource is classified as a dipole | |

ixx | double | asec^2 | Elliptical Gaussian adaptive moments |

ixxPSF | double | asec^2 | Adaptive moments of the PSF model at the object position |

ixy | double | asec^2 | Elliptical Gaussian adaptive moments |

ixyPSF | double | asec^2 | Adaptive moments of the PSF model at the object position |

iyy | double | asec^2 | Elliptical Gaussian adaptive moments |

iyyPSF | double | asec^2 | Adaptive moments of the PSF model at the object position |

midPointTai | double | Effective mid-exposure time for this diaSource. | |

parentDiaSourceId | long | Unique ID of parent source | |

pixelFlags | boolean | General failure flag, set if anything went wrong | |

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 outside usable exposure region (masked EDGE or NO_DATA) | |

pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint | |

pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center | |

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 | |

pixelId | long | Position in ra/dec | |

psFlux | double | nJy | Flux derived from linear least-squares fit of PSF model |

psFluxErr | double | nJy | Flux uncertainty derived from linear least-squares fit of PSF model |

psfFlux_flag | boolean | Failure to derive linear least-squares fit of psf model forced on the calexp | |

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 | |

ra | double | deg | Position in ra/dec [pos.eq.ra] |

shape_flag | boolean | General Failure Flag | |

shape_flag_maxIter | boolean | Too many iterations in adaptive moments | |

shape_flag_psf | boolean | Failure in measuring PSF model shape | |

shape_flag_shift | boolean | Centroid shifted by more than the maximum allowed amount | |

shape_flag_unweighted | boolean | Weighted moments converged to an invalid value; using unweighted moments | |

shape_flag_unweightedBad | boolean | Both weighted and unweighted moments were invalid | |

snr | double | Ratio of apFlux/apFluxErr | |

ssObjectId | long | Id of the ssObject this source was associated with, if any. If not, it is set to 0 | |

totFlux | double | nJy | Forced PSF flux measured on the direct image. |

totFluxErr | double | nJy | Forced PSF flux uncertainty measured on the direct image. |

x | double | pixel | Unweighted first moment centroid, overall centroid |

xErr | float | pixel | 1-sigma uncertainty on x position |

y | double | pixel | Unweighted first moment centroid, overall centroid |

yErr | float | pixel | 1-sigma uncertainty on y position |

## 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] |
---|---|---|---|

band | char | Abstract filter that is not associated with a particular instrument [meta.id;instr.filter] | |

ccdVisitId | long | Unique ID of visit and detector for which forced photometry was performed. Primary Key of the CcdVisit Table. [meta.id;obs.image] | |

coord_dec | double | deg | Fiducial ICRS Declination of DiaObject centroid used for database indexing [pos.eq.dec;meta.main] |

coord_ra | double | deg | Fiducial ICRS Right Ascension of DiaObject centroid used for database indexing [pos.eq.ra;meta.main] |

diaObjectId | long | Unique DiaObject ID. Primary Key of the DiaObject Table [meta.id] | |

forcedSourceOnDiaObjectId | long | Unique ID of forced source. Primary Key. [meta.id;meta.main] | |

localBackground_instFlux | double | count | Background in annulus around source [phot.count] |

localBackground_instFluxErr | double | count | 1-sigma uncertainty on the background in an annulus around source [phot.count;stat.error] |

localPhotoCalib | double | Local approximation of the PhotoCalib calibration factor at the location of the src. [phot.calib] | |

localPhotoCalibErr | double | Error on the local approximation of the PhotoCalib calibration factor at the location of the src. [phot.calib;stat.error] | |

localPhotoCalib_flag | boolean | Set for any fatal failure [meta.code.qual] | |

localWcs_CDMatrix_1_1 | double | (1, 1) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. [pos.wcs.cdmatrix] | |

localWcs_CDMatrix_1_2 | double | (1, 2) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. [pos.wcs.cdmatrix] | |

localWcs_CDMatrix_2_1 | double | (2, 1) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. [pos.wcs.cdmatrix] | |

localWcs_CDMatrix_2_2 | double | (2, 2) element of the CDMatrix for the linear approximation of the WCS at the src location. Gives units in radians. [pos.wcs.cdmatrix] | |

localWcs_flag | boolean | Set for any fatal failure [meta.code.qual] | |

parentObjectId | long | Unique ObjectId of the parent of the ObjectId in context of the deblender. [meta.id.parent] | |

patch | long | Skymap patch ID [meta.id.part] | |

pixelFlags_bad | boolean | Bad pixel in the Source footprint [meta.code.qual;instr.pixel] | |

pixelFlags_cr | boolean | Cosmic ray in the Source footprint [meta.code.qual;instr.pixel] | |

pixelFlags_crCenter | boolean | Cosmic ray in the Source center [meta.code.qual;instr.pixel] | |

pixelFlags_edge | boolean | Source is outside usable exposure region (masked EDGE or NO_DATA) [meta.code.qual;instr.pixel] | |

pixelFlags_interpolated | boolean | Interpolated pixel in the Source footprint [meta.code.qual;instr.pixel] | |

pixelFlags_interpolatedCenter | boolean | Interpolated pixel in the Source center [meta.code.qual;instr.pixel] | |

pixelFlags_saturated | boolean | Saturated pixel in the Source footprint [meta.code.qual;instr.pixel] | |

pixelFlags_saturatedCenter | boolean | Saturated pixel in the Source center [meta.code.qual;instr.pixel] | |

pixelFlags_suspect | boolean | Sources footprint includes suspect pixels [meta.code.qual;instr.pixel] | |

pixelFlags_suspectCenter | boolean | Sources center is close to suspect pixels [meta.code.qual;instr.pixel] | |

psfDiffFlux | double | nJy | Flux derived from linear least-squares fit of psf model forced on the image difference [phot.flux] |

psfDiffFluxErr | double | nJy | Uncertainty on the flux derived from linear least-squares fit of psf model forced on the image difference [phot.flux;stat.error] |

psfDiffFlux_flag | boolean | Failure to derive linear least-squares fit of psf model forced on the image difference [meta.code.qual] | |

psfFlux | double | nJy | Flux derived from linear least-squares fit of psf model forced on the calexp [phot.flux] |

psfFluxErr | double | nJy | Uncertainty on the flux derived from linear least-squares fit of psf model forced on the calexp [phot.flux;stat.error] |

psfFlux_flag | boolean | Failure to derive linear least-squares fit of psf model forced on the calexp [meta.code.qual] | |

skymap | char | Name of skymap used for coadd projection | |

tract | long | Skymap tract ID [meta.id] |

## Visit

Metadata about the pointings of the DC2 simulated survey, largely associated with the boresight of the entire focal plane.

Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|

visit | long | Unique identifier. [meta.id;obs.image] | |

physical_filter | char | ID of physical filter, the filter associated with a particular instrument. | |

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. | |

ra | double | deg | RA of focal plane center. [pos.eq.ra;meta.main] |

decl | double | deg | Declination of focal plane center [pos.eq.dec;meta.main] |

skyRotation | double | deg | Sky rotation angle. |

azimuth | double | deg | Azimuth of focal plane center at the middle of the exposure. |

altitude | double | deg | Altitude of focal plane center at the middle of the exposure. |

zenithDistance | double | deg | Zenith distance at the middle of the exposure. |

airmass | double | Airmass of the observed line of sight. | |

expTime | double | s | Spatially-average duration of exposure, accurate to 10ms. |

expMidpt | timestamp | Midpoint time for exposure at the fiducial center of the focal plane array. TAI, accurate to 10ms. | |

expMidptMJD | double | Midpoint time for exposure at the fiducial center of the focal plane array in MJD. TAI, accurate to 10ms. | |

obsStart | timestamp | Start time of the exposure at the fiducial center of the focal plane array, TAI, accurate to 10ms. | |

obsStartMJD | double | Start of the exposure in MJD, TAI, accurate to 10ms. |

## CcdVisit

Metadata about the 189 individual CCD images for each Visit in the DC2 simulated survey.

Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|

ccdVisitId | long | Primary key (unique identifier). | |

visitId | long | Reference to the corresponding entry in the Visit table. | |

physical_filter | char | ID of physical filter, the filter associated with a particular instrument. | |

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. | |

ra | double | deg | RA of Ccd center. [pos.eq.ra;meta.main] |

decl | double | deg | Declination of Ccd center. [pos.eq.dec;meta.main] |

zenithDistance | float | deg | Zenith distance at observation mid-point. |

zeroPoint | float | mag | Zero-point for the Ccd, estimated at Ccd center. |

psfSigma | float | pixel | PSF model second-moments determinant radius (center of chip) |

skyBg | float | DN | Average sky background. |

skyNoise | float | DN | RMS noise of the sky background. |

detector | long | Detector ID. A detector associated with a particular instrument (not an observation of that detector) | |

seeing | double | arcsec | Mean measured FWHM of the PSF. |

skyRotation | double | deg | Sky rotation angle. |

expMidpt | timestamp | Midpoint for exposure. TAI, accurate to 10ms. | |

expMidptMJD | double | d | Midpoint for exposure in MJD. TAI, accurate to 10ms. |

expTime | double | s | Spatially-averaged duration of exposure, accurate to 10ms. |

obsStart | timestamp | Start of the exposure, TAI, accurate to 10ms. | |

obsStartMJD | double | Start of the exposure in MJD, TAI, accurate to 10ms. | |

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 | RA of lower left corner. [pos.eq.ra] |

llcdec | double | deg | Declination of lower left corner. [pos.eq.dec] |

ulcra | double | deg | RA of upper left corner. [pos.eq.ra] |

ulcdec | double | deg | Declination of upper left corner. [pos.eq.dec] |

urcra | double | deg | RA of upper right corner. [pos.eq.ra] |

urcdec | double | deg | Declination of upper right corner. [pos.eq.dec] |

lrcra | double | deg | RA of lower right corner. [pos.eq.ra] |

lrcdec | double | deg | Declination of lower right corner. [pos.eq.dec] |

## 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] |
---|---|---|---|

lsst_tract | long | ID number of the top level, 'tract', within the standard LSST skymap [meta.id.part] | |

lsst_patch | long | ID number of the second level, 'patch', within the standard LSST skymap [meta.id.part] | |

s_ra | double | deg | Central Spatial Position in ICRS; Right ascension [pos.eq.ra] |

s_dec | double | deg | Central Spatial Position in ICRS; Declination [pos.eq.dec] |

s_region | char | Sky region covered by the coadd (expressed in ICRS frame) [pos.outline;obs.field] |

## MatchesTruth

Match information for TruthSummary objects.

Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|

match_candidate | boolean | True for sources that were selected for matching | |

match_count | int | Number of candidate object matches within match radius | |

match_chisq | double | The chi-squared value of the (best) match | |

match_n_chisq_finite | int | The number of finite columns used to compute the match chisq | |

id | char | id for TruthSummary source. Potentially non-unique; use id_truth_type for JOINs. | |

truth_type | long | Type of TruthSummary source; 1 for galaxies, 2 for stars, and 3 for SNe | |

match_objectId | long | objectId of matched entry in the Object table, if any | |

id_truth_type | char | Combination of TruthSummary id and truth_type fields, used for JOINs. |

## TruthSummary

Summary properties of objects from the DESC DC2 truth catalog, as described in arXiv:2101.04855. Includes the noiseless astrometric and photometric parameters.

Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|

id_truth_type | char | Combination of id and truth_type fields, used for JOINs with MatchesTruth. | |

id | char | Unique object ID | |

host_galaxy | long | ID of the host galaxy for a SN/AGN entry (-1 for other truth types) | |

ra | double | deg | Right Ascension [pos.eq.ra] |

dec | double | deg | Declination [pos.eq.dec] |

redshift | float | Redshift | |

is_variable | int | 1 for a variable source | |

is_pointsource | int | 1 for a point source | |

flux_u | float | nJy | Static flux value in u |

flux_g | float | nJy | Static flux value in g |

flux_r | float | nJy | Static flux value in r |

flux_i | float | nJy | Static flux value in i |

flux_z | float | nJy | Static flux value in z |

flux_y | float | nJy | Static flux value in y |

flux_u_noMW | float | nJy | Static flux value in u, without Milky Way extinction (i.e., dereddened) |

flux_g_noMW | float | nJy | Static flux value in g, without Milky Way extinction (i.e., dereddened) |

flux_r_noMW | float | nJy | Static flux value in r, without Milky Way extinction (i.e., dereddened) |

flux_i_noMW | float | nJy | Static flux value in i, without Milky Way extinction (i.e., dereddened) |

flux_z_noMW | float | nJy | Static flux value in z, without Milky Way extinction (i.e., dereddened) |

flux_y_noMW | float | nJy | Static flux value in y, without Milky Way extinction (i.e., dereddened) |

mag_r | float | mag | Magnitude in r |

cosmodc2_hp | long | Healpix ID in cosmoDC2 (for galaxies only; -1 for stars and SNe) | |

cosmodc2_id | long | Galaxy ID in cosmoDC2 (for galaxies only; -1 for stars and SNe) | |

truth_type | long | 1 for galaxies, 2 for stars, and 3 for SNe |