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Table: des_dr1.main
(The bold columns are indexed columns)
| Column Name | Description | Datatype |
|---|---|---|
| a_image | Major axis size based on an isophotal model | real |
| alphawin_j2000 | Right ascension for the object, J2000 in ICRS system (full precision but not indexed) | double |
| awin_image_g | Major axis size, from 2nd order windowed moment measurements | real |
| awin_image_i | Major axis size, from 2nd order windowed moment measurements | real |
| awin_image_r | Major axis size, from 2nd order windowed moment measurements | real |
| awin_image_y | Major axis size, from 2nd order windowed moment measurements | real |
| awin_image_z | Major axis size, from 2nd order windowed moment measurements | real |
| b_image | Minor axis size based on an isophotal model | real |
| background_g | Background level, by CCD-amplifier | real |
| background_i | Background level, by CCD-amplifier | real |
| background_r | Background level, by CCD-amplifier | real |
| background_y | Background level, by CCD-amplifier | real |
| background_z | Background level, by CCD-amplifier | real |
| bwin_image_g | Minor axis size, from 2nd order windowed moment measurements | real |
| bwin_image_i | Minor axis size, from 2nd order windowed moment measurements | real |
| bwin_image_r | Minor axis size, from 2nd order windowed moment measurements | real |
| bwin_image_y | Minor axis size, from 2nd order windowed moment measurements | real |
| bwin_image_z | Minor axis size, from 2nd order windowed moment measurements | real |
| class_star_g | Simple morphological extended source classifier. Values between 0 (galaxies) and 1 (stars). SPREAD_MODEL exhibits better performance for morphological classification. | real |
| class_star_i | Simple morphological extended source classifier. Values between 0 (galaxies) and 1 (stars). SPREAD_MODEL exhibits better performance for morphological classification. | real |
| class_star_r | Simple morphological extended source classifier. Values between 0 (galaxies) and 1 (stars). SPREAD_MODEL exhibits better performance for morphological classification. | real |
| class_star_y | Simple morphological extended source classifier. Values between 0 (galaxies) and 1 (stars). SPREAD_MODEL exhibits better performance for morphological classification. | real |
| class_star_z | Simple morphological extended source classifier. Values between 0 (galaxies) and 1 (stars). SPREAD_MODEL exhibits better performance for morphological classification. | real |
| coadd_object_id | Unique identifier for the coadded objects | bigint |
| dec | Declination, with quantized precision for indexing (DELTAWIN_J2000 has full precision but not indexed) | double |
| deltawin_j2000 | Declination for the object, J2000 in ICRS (full precision but not indexed) | double |
| ebv_sfd98 | E(B-V) reddening oefficient from Schelgel, Finkbeiner & Davis (1998) | real |
| ecliptic_lat | Ecliptic Latitude | double |
| ecliptic_lon | Ecliptic Longitude | double |
| erra_image | Uncertainty in major axis size, from isophotal model | real |
| errawin_image_g | Uncertainty in major axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errawin_image_i | Uncertainty in major axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errawin_image_r | Uncertainty in major axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errawin_image_y | Uncertainty in major axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errawin_image_z | Uncertainty in major axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errb_image | Uncertainty in minor axis size, from isophotal model | real |
| errbwin_image_g | Uncertainty in minor axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errbwin_image_i | Uncertainty in minor axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errbwin_image_r | Uncertainty in minor axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errbwin_image_y | Uncertainty in minor axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errbwin_image_z | Uncertainty in Minor axis size, from converged windowed measurement, assuming uncorrelated noise | real |
| errtheta_image | Uncertainty in source position, from isophotal model | real |
| errthetawin_image_g | Uncertainty in source position angle, from converged windowed measurement | real |
| errthetawin_image_i | Uncertainty in source position angle, from converged windowed measurement | real |
| errthetawin_image_r | Uncertainty in source position angle, from converged windowed measurement | real |
| errthetawin_image_y | Uncertainty in source position angle, from converged windowed measurement | real |
| errthetawin_image_z | Uncertainty in source position angle, from converged windowed measurement | real |
| errx2win_image_g | Uncertainty in second moment of x-distribution centroid, from converged windowed measurements | double |
| errx2win_image_i | Uncertainty in second moment of x-distribution centroid, from converged windowed measurements | double |
| errx2win_image_r | Uncertainty in second moment of x-distribution centroid, from converged windowed measurements | double |
| errx2win_image_y | Uncertainty in second moment of x-distribution centroid, from converged windowed measurements | double |
| errx2win_image_z | Uncertainty in second moment of x-distribution centroid, from converged windowed measurements | double |
| errxywin_image_g | Uncertainty in second moment of xy-distribution, from converged windowed measurements | double |
| errxywin_image_i | Uncertainty in second moment of xy-distribution, from converged windowed measurements | double |
| errxywin_image_r | Uncertainty in second moment of xy-distribution, from converged windowed measurements | double |
| errxywin_image_y | Uncertainty in second moment of xy-distribution, from converged windowed measurements | double |
| errxywin_image_z | Uncertainty in second moment of xy-distribution, from converged windowed measurements | double |
| erry2win_image_g | Uncertainty in second moment of y-distribution centroid, from converged windowed measurements | double |
| erry2win_image_i | Uncertainty in second moment of y-distribution centroid, from converged windowed measurements | double |
| erry2win_image_r | Uncertainty in second moment of y-distribution centroid, from converged windowed measurements | double |
| erry2win_image_y | Uncertainty in second moment of y-distribution centroid, from converged windowed measurements | double |
| erry2win_image_z | Uncertainty in second moment of y-distribution centroid, from converged windowed measurements | double |
| flags_g | Additive flag describing cautionary advice about source extraction process. Use less than 4 for well behaved objects | smallint |
| flags_i | Additive flag describing cautionary advice about source extraction process. Use less than 4 for well behaved objects | smallint |
| flags_r | Additive flag describing cautionary advice about source extraction process. Use less than 4 for well behaved objects | smallint |
| flags_y | Additive flag describing cautionary advice about source extraction process. Use less than 4 for well behaved objects | smallint |
| flags_z | Additive flag describing cautionary advice about source extraction process. Use less than 4 for well behaved objects | smallint |
| flux_aper_8_g | Flux measurement for circular apertures | real |
| flux_aper_8_i | Flux measurement for circular apertures | real |
| flux_aper_8_r | Flux measurement for circular apertures | real |
| flux_aper_8_y | Flux measurement for circular apertures | real |
| flux_aper_8_z | Flux measurement for circular apertures | real |
| flux_auto_g | Flux measurement, for an elliptical model based on Kron radius | real |
| flux_auto_i | Flux measurement, for an elliptical model based on Kron radius | real |
| flux_auto_r | Flux measurement, for an elliptical model based on Kron radius | real |
| flux_auto_y | Flux measurement, for an elliptical model based on Kron radius | real |
| flux_auto_z | Flux measurement, for an elliptical model based on Kron radius | real |
| flux_radius_g | Half-light radius for the object, from elliptical growth-curve, modeled in 2 dimensions | real |
| flux_radius_i | Half-light radius for the object, from elliptical growth-curve, modeled in 2 dimensions | real |
| flux_radius_r | Half-light radius for the object, from elliptical growth-curve, modeled in 2 dimensions | real |
| flux_radius_y | Half-light radius for the object, from elliptical growth-curve, modeled in 2 dimensions | real |
| flux_radius_z | Half-light radius for the object, from elliptical growth-curve, modeled in 2 dimensions | real |
| fluxerr_aper_8_g | Uncertainty in aperture-flux measurement, elliptical model based on the Kron radius | real |
| fluxerr_aper_8_i | Uncertainty in aperture-flux measurement, elliptical model based on the Kron radius | real |
| fluxerr_aper_8_r | Uncertainty in aperture-flux measurement, elliptical model based on the Kron radius | real |
| fluxerr_aper_8_y | Uncertainty in aperture-flux measurement, elliptical model based on the Kron radius | real |
| fluxerr_aper_8_z | Uncertainty in aperture-flux measurement, elliptical model based on the Kron radius | real |
| fluxerr_auto_g | uncertainty in flux measurement, for an elliptical model based on Kron radius | real |
| fluxerr_auto_i | uncertainty in flux measurement, for an elliptical model based on Kron radius | real |
| fluxerr_auto_r | uncertainty in flux measurement, for an elliptical model based on Kron radius | real |
| fluxerr_auto_y | uncertainty in flux measurement, for an elliptical model based on Kron radius | real |
| fluxerr_auto_z | uncertainty in flux measurement, for an elliptical model based on Kron radius | real |
| fwhm_image_g | FWHM measured from the isophotal area, from elliptical growth-curve, modeled in 2 dimensions | real |
| fwhm_image_i | FWHM measured from the isophotal area, from elliptical growth-curve, modeled in 2 dimensions | real |
| fwhm_image_r | FWHM measured from the isophotal area, from elliptical growth-curve, modeled in 2 dimensions | real |
| fwhm_image_y | FWHM measured from the isophotal area, from elliptical growth-curve, modeled in 2 dimensions | real |
| fwhm_image_z | FWHM measured from the isophotal area, from elliptical growth-curve, modeled in 2 dimensions | real |
| g_r | G-R color | real |
| galactic_b | Galactic Latitude | double |
| galactic_l | Galactic Longitude | double |
| hpix_1024 | Healpix ID for nside=1024, nested schema | bigint |
| hpix_16384 | Healpix ID for nside=16384, nested schema | bigint |
| hpix_32 | Healpix ID for nside=32, nested schema | bigint |
| hpix_4096 | Healpix ID for nside=4096, nested schema | bigint |
| hpix_64 | Healpix ID for nside=64, nested schema | bigint |
| htm9 | HTM Level-9 index | integer |
| i_z | I-Z color | real |
| imaflags_iso_g | Flag identifying sources with missing/flagged pixels, considering all single epoch images | integer |
| imaflags_iso_i | Flag identifying sources with missing/flagged pixels, considering all single epoch images | integer |
| imaflags_iso_r | Flag identifying sources with missing/flagged pixels, considering all single epoch images | integer |
| imaflags_iso_y | Flag identifying sources with missing/flagged pixels, considering all single epoch images | integer |
| imaflags_iso_z | Flag identifying sources with missing/flagged pixels, considering all single epoch images | integer |
| isoarea_image_g | Isophotal area of the coadded source | integer |
| isoarea_image_i | Isophotal area of the coadded source | integer |
| isoarea_image_r | Isophotal area of the coadded source | integer |
| isoarea_image_y | Isophotal area of the coadded source | integer |
| isoarea_image_z | Isophotal area of the coadded source | integer |
| kron_radius | Kron radius | real |
| kron_radius_g | Kron radius measured from detection image | real |
| kron_radius_i | Kron radius measured from detection image | real |
| kron_radius_r | Kron radius measured from detection image | real |
| kron_radius_y | Kron radius measured from detection image | real |
| kron_radius_z | Kron radius measured from detection image | real |
| mag_aper_8_g | Magnitude estimation for circular apertures | real |
| mag_aper_8_g_dered | Dereddened magnitude estimation (using SFD98) for circular apertures | real |
| mag_aper_8_i | Magnitude estimation for circular apertures | real |
| mag_aper_8_i_dered | Dereddened magnitude estimation (using SFD98) for circular apertures | real |
| mag_aper_8_r | Magnitude estimation for circular apertures | real |
| mag_aper_8_r_dered | Dereddened magnitude estimation (using SFD98) for circular apertures | real |
| mag_aper_8_y | Magnitude estimation for circular apertures | real |
| mag_aper_8_y_dered | Dereddened magnitude estimation (using SFD98) for circular apertures | real |
| mag_aper_8_z | Magnitude estimation for circular apertures | real |
| mag_aper_8_z_dered | Dereddened magnitude estimation (using SFD98) for circular apertures | real |
| mag_auto_g | Magnitude estimation, for an elliptical model based on the Kron radius | real |
| mag_auto_g_dered | Dereddened magnitude estimation (using SFD98), for an elliptical model based on the Kron radius | real |
| mag_auto_i | Magnitude estimation, for an elliptical model based on the Kron radius | real |
| mag_auto_i_dered | Dereddened magnitude estimation (using SFD98), for an elliptical model based on the Kron radius | real |
| mag_auto_r | Magnitude estimation, for an elliptical model based on the Kron radius | real |
| mag_auto_r_dered | Dereddened magnitude estimation (using SFD98), for an elliptical model based on the Kron radius | real |
| mag_auto_y | Magnitude estimation, for an elliptical model based on the Kron radius | real |
| mag_auto_y_dered | Dereddened magnitude estimation (using SFD98), for an elliptical model based on the Kron radius | real |
| mag_auto_z | Magnitude estimation, for an elliptical model based on the Kron radius | real |
| mag_auto_z_dered | Dereddened magnitude estimation (using SFD98), for an elliptical model based on the Kron radius | real |
| magerr_aper_8_g | Uncertainty in magnitude estimation for circular apertures | real |
| magerr_aper_8_i | Uncertainty in magnitude estimation for circular apertures | real |
| magerr_aper_8_r | Uncertainty in magnitude estimation for circular apertures | real |
| magerr_aper_8_y | Uncertainty in magnitude estimation for circular apertures | real |
| magerr_aper_8_z | Uncertainty in magnitude estimation for circular apertures | real |
| magerr_auto_g | Uncertainty in magnitude estimation, for an elliptical model based on the Kron radius | real |
| magerr_auto_i | Uncertainty in magnitude estimation, for an elliptical model based on the Kron radius | real |
| magerr_auto_r | Uncertainty in magnitude estimation, for an elliptical model based on the Kron radius | real |
| magerr_auto_y | Uncertainty in magnitude estimation, for an elliptical model based on the Kron radius | real |
| magerr_auto_z | Uncertainty in magnitude estimation, for an elliptical model based on the Kron radius | real |
| nepochs_g | Number of epochs the source in detected in single epoch images | integer |
| nepochs_i | Number of epochs the source in detected in single epoch images | integer |
| nepochs_r | Number of epochs the source in detected in single epoch images | integer |
| nepochs_y | Number of epochs the source in detected in single epoch images | integer |
| nepochs_z | Number of epochs the source in detected in single epoch images | integer |
| nest4096 | Healpix ID with nside=4096, nested schema | integer |
| niter_model_g | Number of iterations in model fitting photometric measurements | integer |
| niter_model_i | Number of iterations in model fitting photometric measurements | integer |
| niter_model_r | Number of iterations in model fitting photometric measurements | integer |
| niter_model_y | Number of iterations in model fitting photometric measurements | integer |
| niter_model_z | Number of iterations in model fitting photometric measurements | integer |
| r_i | R-I color | real |
| ra | Right ascension, with quantized precision for indexing (ALPHAWIN_J2000 has full precision but not indexed) | double |
| ring256 | Healpix ID with nside=256, ring schema | integer |
| snr_g | S/N | real |
| snr_i | S/N | real |
| snr_r | S/N | real |
| snr_y | S/N | real |
| snr_z | S/N | real |
| spread_model_g | Morphology based classifier based on comparison between a PSF versus exponential-PSF model. Values closer to 0 correspond to stars, larger values correspond to galaxies. | real |
| spread_model_i | Morphology based classifier based on comparison between a PSF versus exponential-PSF model. Values closer to 0 correspond to stars, larger values correspond to galaxies. | real |
| spread_model_r | Morphology based classifier based on comparison between a PSF versus exponential-PSF model. Values closer to 0 correspond to stars, larger values correspond to galaxies. | real |
| spread_model_y | Morphology based classifier based on comparison between a PSF versus exponential-PSF model. Values closer to 0 correspond to stars, larger values correspond to galaxies. | real |
| spread_model_z | Morphology based classifier based on comparison between a PSF versus exponential-PSF model. Values closer to 0 correspond to stars, larger values correspond to galaxies. | real |
| spreaderr_model_g | Uncertainty in morphology based classifier based on comparison between PSF versus exponential-PSF model. | real |
| spreaderr_model_i | Uncertainty in morphology based classifier based on comparison between PSF versus exponential-PSF model. | real |
| spreaderr_model_r | Uncertainty in morphology based classifier based on comparison between PSF versus exponential-PSF model. | real |
| spreaderr_model_y | Uncertainty in morphology based classifier based on comparison between PSF versus exponential-PSF model. | real |
| spreaderr_model_z | Uncertainty in morphology based classifier based on comparison between PSF versus exponential-PSF model. | real |
| theta_j2000 | Position angle of source in J2000 coordinates, from non-windowed measurement | real |
| thetawin_image_g | Position angle of source, for converged windowed measurement grow from x to y | real |
| thetawin_image_i | Position angle of source, for converged windowed measurement grow from x to y | real |
| thetawin_image_r | Position angle of source, for converged windowed measurement grow from x to y | real |
| thetawin_image_y | Position angle of source, for converged windowed measurement grow from x to y | real |
| thetawin_image_z | Position angle of source, for converged windowed measurement grow from x to y | real |
| tilename | Tile name | character |
| wavg_flux_psf_g | Weighted average flux measurement of PSF fit single epoch detections | real |
| wavg_flux_psf_i | Weighted average flux measurement of PSF fit single epoch detections | real |
| wavg_flux_psf_r | Weighted average flux measurement of PSF fit single epoch detections | real |
| wavg_flux_psf_y | Weighted average flux measurement of PSF fit single epoch detections | real |
| wavg_flux_psf_z | Weighted average flux measurement of PSF fit single epoch detections | real |
| wavg_fluxerr_psf_g | Uncertainty of weighted average flux, of PSF fit single epoch detections | real |
| wavg_fluxerr_psf_i | Uncertainty of weighted average flux, of PSF fit single epoch detections | real |
| wavg_fluxerr_psf_r | Uncertainty of weighted average flux, of PSF fit single epoch detections | real |
| wavg_fluxerr_psf_y | Uncertainty of weighted average flux, of PSF fit single epoch detections | real |
| wavg_fluxerr_psf_z | Uncertainty of weighted average flux, of PSF fit single epoch detections | real |
| wavg_mag_psf_g | Weighted average magnitude, of PSF fit single epoch detections | real |
| wavg_mag_psf_g_dered | Dereddened weighted average magnitude (using SFD98) from PSF fit single epoch detections | real |
| wavg_mag_psf_i | Weighted average magnitude, of PSF fit single epoch detections | real |
| wavg_mag_psf_i_dered | Dereddened weighted average magnitude (using SFD98) from PSF fit single epoch detections | real |
| wavg_mag_psf_r | Weighted average magnitude, of PSF fit single epoch detections | real |
| wavg_mag_psf_r_dered | Dereddened weighted average magnitude (using SFD98) from PSF fit single epoch detections | real |
| wavg_mag_psf_y | Weighted average magnitude, of PSF fit single epoch detections | real |
| wavg_mag_psf_y_dered | Dereddened weighted average magnitude (using SFD98) from PSF fit single epoch detections | real |
| wavg_mag_psf_z | Weighted average magnitude, of PSF fit single epoch detections | real |
| wavg_mag_psf_z_dered | Dereddened weighted average magnitude (using SFD98) from PSF fit single epoch detections | real |
| wavg_magerr_psf_g | Uncertainty of weighted averaged magnitude, of PSF fit single epoch detections | real |
| wavg_magerr_psf_i | Uncertainty of weighted averaged magnitude, of PSF fit single epoch detections | real |
| wavg_magerr_psf_r | Uncertainty of weighted averaged magnitude, of PSF fit single epoch detections | real |
| wavg_magerr_psf_y | Uncertainty of weighted averaged magnitude, of PSF fit single epoch detections | real |
| wavg_magerr_psf_z | Uncertainty of weighted averaged magnitude, of PSF fit single epoch detections | real |
| wavg_spread_model_g | SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spread_model_i | SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spread_model_r | SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spread_model_y | SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spread_model_z | SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spreaderr_model_g | Uncertainty in SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spreaderr_model_i | Uncertainty in SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spreaderr_model_r | Uncertainty in SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spreaderr_model_y | Uncertainty in SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| wavg_spreaderr_model_z | Uncertainty in SPREAD MODEL using the weighted averaged values from single epoch detections | real |
| x2win_image_g | Second moment in x-direction, from converged windowed measurements | double |
| x2win_image_i | Second moment in x-direction, from converged windowed measurements | double |
| x2win_image_r | Second moment in x-direction, from converged windowed measurements | double |
| x2win_image_y | Second moment in x-direction, from converged windowed measurements | double |
| x2win_image_z | Second moment in x-direction, from converged windowed measurements | double |
| xwin_image | X-centroid from windowed measurements on coadded image | double |
| xwin_image_g | X-centroid from windowed measurements on coadded image | double |
| xwin_image_i | X-centroid from windowed measurements on coadded image | double |
| xwin_image_r | X-centroid from windowed measurements on coadded image | double |
| xwin_image_y | X-centroid from windowed measurements on coadded image | double |
| xwin_image_z | X-centroid from windowed measurements on coadded image | double |
| xywin_image_g | Second moment in xy-direction, from converged windowed measurements | double |
| xywin_image_i | Second moment in xy-direction, from converged windowed measurements | double |
| xywin_image_r | Second moment in xy-direction, from converged windowed measurements | double |
| xywin_image_y | Second moment in xy-direction, from converged windowed measurements | double |
| xywin_image_z | Second moment in xy-direction, from converged windowed measurements | double |
| y2win_image_g | Second moment in y-direction, from converged windowed measurements | double |
| y2win_image_i | Second moment in y-direction, from converged windowed measurements | double |
| y2win_image_r | Second moment in y-direction, from converged windowed measurements | double |
| y2win_image_y | Second moment in y-direction, from converged windowed measurements | double |
| y2win_image_z | Second moment in y-direction, from converged windowed measurements | double |
| ywin_image | Y-centroid from windowed measurements on coadded image | double |
| ywin_image_g | Y-centroid from windowed measurements on coadded image | double |
| ywin_image_i | Y-centroid from windowed measurements on coadded image | double |
| ywin_image_r | Y-centroid from windowed measurements on coadded image | double |
| ywin_image_y | Y-centroid from windowed measurements on coadded image | double |
| ywin_image_z | Y-centroid from windowed measurements on coadded image | double |
| z_y | Z-Y color | real |
