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Table: ls_dr7.randoms_dr7
(The bold columns are indexed columns)
| Column Name | Description | Datatype |
|---|---|---|
| brickname | Name of brick, encoding the brick sky position, e.g. 1126p222 near RA=112.6, Dec=+22.2 | VARCHAR(n) |
| dec | Declination at epoch J2000 | DOUBLE |
| ebv | Galactic extinction (E(B-V)) reddening from SFD98, used to compute DECAM_MW_TRANSMISSION and WISE_MW_TRANSMISSION | REAL |
| elat | DOUBLE | |
| elon | DOUBLE | |
| galdepth_g | As for PSFDEPTH_G but for a galaxy (0.45 arcsec exp, round) detection sensitivity | REAL |
| galdepth_r | As for PSFDEPTH_R but for a galaxy (0.45 arcsec exp, round) detection sensitivity | REAL |
| galdepth_z | As for PSFDEPTH_Z but for a galaxy (0.45 arcsec exp, round) detection sensitivity | REAL |
| glat | DOUBLE | |
| glon | DOUBLE | |
| hpxpixel | BIGINT | |
| htm9 | INTEGER | |
| maskbits | SMALLINT | |
| nest4096 | INTEGER | |
| nobs_g | Number of images that contribute to the central pixel in (g): filter for this object (not profile-weighted) | SMALLINT |
| nobs_r | Number of images that contribute to the central pixel in (r): filter for this object (not profile-weighted) | SMALLINT |
| nobs_z | Number of images that contribute to the central pixel in (z): filter for this object (not profile-weighted) | SMALLINT |
| psfdepth_g | For a (5sigma) 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 magnitude | REAL |
| psfdepth_r | For a (5sigma) 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 magnitude | REAL |
| psfdepth_z | For a (5sigma) 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 magnitude | REAL |
| ra | Right ascension at epoch J2000 | DOUBLE |
| ring256 | INTEGER |
