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(The bold columns are indexed columns)
Column NameDescriptionDatatype
bricknameName of brick, encoding the brick sky position, e.g. 1126p222 near RA=112.6, Dec=+22.2VARCHAR(n)
decDeclination at epoch J2000DOUBLE
ebvGalactic extinction \(E(B-V)\) reddening from SFD98, used to compute DECAM_MW_TRANSMISSION and WISE_MW_TRANSMISSIONREAL
elatDOUBLE
elonDOUBLE
galdepth_gAs for PSFDEPTH_G but for a galaxy (0.45 arcsec exp, round) detection sensitivityREAL
galdepth_rAs for PSFDEPTH_R but for a galaxy (0.45 arcsec exp, round) detection sensitivityREAL
galdepth_zAs for PSFDEPTH_Z but for a galaxy (0.45 arcsec exp, round) detection sensitivityREAL
glatDOUBLE
glonDOUBLE
hpxpixelBIGINT
htm9INTEGER
maskbitsSMALLINT
nest4096INTEGER
nobs_gNumber of images that contribute to the central pixel in \(g\): filter for this object (not profile-weighted)SMALLINT
nobs_rNumber of images that contribute to the central pixel in \(r\): filter for this object (not profile-weighted)SMALLINT
nobs_zNumber of images that contribute to the central pixel in \(z\): filter for this object (not profile-weighted)SMALLINT
psfdepth_gFor a \(5\sigma\) point source detection limit in \(g\), \(5/\sqrt(\mathrm{PSFDEPTH\_G})\) gives flux in nanomaggies and \(-2.5[\log_{10}(5 / \sqrt(\mathrm{PSFDEPTH\_G})) - 9]\) gives corresponding magnitudeREAL
psfdepth_rFor a \(5\sigma\) point source detection limit in \(g\), \(5/\sqrt(\mathrm{PSFDEPTH\_R})\) gives flux in nanomaggies and \(-2.5[\log_{10}(5 / \sqrt(\mathrm{PSFDEPTH\_R})) - 9]\) gives corresponding magnitudeREAL
psfdepth_zFor a \(5\sigma\) point source detection limit in \(g\), \(5/\sqrt(\mathrm{PSFDEPTH\_Z})\) gives flux in nanomaggies and \(-2.5[\log_{10}(5 / \sqrt(\mathrm{PSFDEPTH\_Z})) - 9]\) gives corresponding magnitudeREAL
raRight ascension at epoch J2000DOUBLE
ring256INTEGER