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Table: des_sva1.gold_catalog
(The bold columns are indexed columns)
| Column Name | Description | Datatype |
|---|---|---|
| badflag | SVA1 GOLD flag definitions. 1: In the 10th percentile of worst junk regions (probably okay). 2: In the 4th percentile of worst junk regions (probably bad). 4: Near bright 2MASS star (very likely bad). 8: Large offset between g- and i-band windowed positions (bad object). | INTEGER |
| class_star_g | Neural-network star galaxy classification from SExtractor (Bertin & Arnouts 1996). | REAL |
| class_star_i | Neural-network star galaxy classification from SExtractor (Bertin & Arnouts 1996). | REAL |
| class_star_r | Neural-network star galaxy classification from SExtractor (Bertin & Arnouts 1996). | REAL |
| class_star_z | Neural-network star galaxy classification from SExtractor (Bertin & Arnouts 1996). | REAL |
| coadd_objects_id | Unique object identifier (can be used to match against other SVA1 catalogs) | BIGINT |
| dec_j2000 | Celestial coordinates in decimal degrees (J2000) corresponding to the i-band windowed position (the ALPHAWIN_J2000 and DELTAWIN_J2000) output by SExtractor.For a small number of objects (<0.1%) the position is taken for z- or r-band (when i-band is not available) | DOUBLE |
| flags_g | SExtractor flags values (precut on FLAGS < 4). 0: No issue. 1: Bright neighbors. 2: Blended object. | INTEGER |
| flags_i | SExtractor flags values (precut on FLAGS < 4). 0: No issue. 1: Bright neighbors. 2: Blended object. | INTEGER |
| flags_r | SExtractor flags values (precut on FLAGS < 4). 0: No issue. 1: Bright neighbors. 2: Blended object. | INTEGER |
| flags_z | SExtractor flags values (precut on FLAGS < 4). 0: No issue. 1: Bright neighbors. 2: Blended object. | INTEGER |
| flux_radius_g | Radius in pixels (0.263 inches/pix) of a circle centered on the object barycenter that encloses half of the total flux as measured by SExtractor. | REAL |
| flux_radius_i | Radius in pixels (0.263 inches/pix) of a circle centered on the object barycenter that encloses half of the total flux as measured by SExtractor. | REAL |
| flux_radius_r | Radius in pixels (0.263 inches/pix) of a circle centered on the object barycenter that encloses half of the total flux as measured by SExtractor. | REAL |
| flux_radius_z | Radius in pixels (0.263 inches/pix) of a circle centered on the object barycenter that encloses half of the total flux as measured by SExtractor. | REAL |
| htm9 | HTM index (order 9 => ~10 arcmin size) | BIGINT |
| mag_auto_g | AUTO magnitudes from SExtractor. | REAL |
| mag_auto_i | AUTO magnitudes from SExtractor. | REAL |
| mag_auto_r | AUTO magnitudes from SExtractor. | REAL |
| mag_auto_z | AUTO magnitudes from SExtractor. | REAL |
| mag_psf_g | PSF magnitudes form SExtractor. NOT RECOMMENDED. | REAL |
| mag_psf_i | PSF magnitudes form SExtractor. NOT RECOMMENDED. | REAL |
| mag_psf_r | PSF magnitudes form SExtractor. NOT RECOMMENDED. | REAL |
| mag_psf_z | PSF magnitudes form SExtractor. NOT RECOMMENDED. | REAL |
| magerr_auto_g | AUTO magnitudes from SExtractor. | REAL |
| magerr_auto_i | AUTO magnitudes from SExtractor. | REAL |
| magerr_auto_r | AUTO magnitudes from SExtractor. | REAL |
| magerr_auto_z | AUTO magnitudes from SExtractor. | REAL |
| magerr_psf_g | PSF magnitudes form SExtractor. NOT RECOMMENDED. | REAL |
| magerr_psf_i | PSF magnitudes form SExtractor. NOT RECOMMENDED. | REAL |
| magerr_psf_r | PSF magnitudes form SExtractor. NOT RECOMMENDED. | REAL |
| magerr_psf_z | PSF magnitudes form SExtractor. NOT RECOMMENDED. | REAL |
| modest_class | Integer object classification schema built on SPREAD_MODEL, SPREADERR_MODEL, and CLASS_STAR (Jarvis et al. 2015). 0: Undetermined. 1: Galaxies. 2: Stars. | SMALLINT |
| nest256 | HEALPIX index (Nsides 256 => ~14 arcmin size) | BIGINT |
| ra_j2000 | Celestial coordinates in decimal degrees (J2000) corresponding to the i-band windowed position (the ALPHAWIN_J2000 and DELTAWIN_J2000) output by SExtractor.For a small number of objects (<0.1%) the position is taken for z- or r-band (when i-band is not available) | DOUBLE |
| ring256 | HEALPIX index (Nsides 256 => ~14 arcmin size) | BIGINT |
| spread_model_g | Linear discriminant between the best fitting local PSF model and a slightly more extended galaxy model (Desai et al. 2012). | REAL |
| spread_model_i | Linear discriminant between the best fitting local PSF model and a slightly more extended galaxy model (Desai et al. 2012). | REAL |
| spread_model_r | Linear discriminant between the best fitting local PSF model and a slightly more extended galaxy model (Desai et al. 2012). | REAL |
| spread_model_z | Linear discriminant between the best fitting local PSF model and a slightly more extended galaxy model (Desai et al. 2012). | REAL |
| spreaderr_model_g | Linear discriminant between the best fitting local PSF model and a slightly more extended galaxy model (Desai et al. 2012). | REAL |
| spreaderr_model_i | Linear discriminant between the best fitting local PSF model and a slightly more extended galaxy model (Desai et al. 2012). | REAL |
| spreaderr_model_r | Linear discriminant between the best fitting local PSF model and a slightly more extended galaxy model (Desai et al. 2012). | REAL |
| spreaderr_model_z | Linear discriminant between the best fitting local PSF model and a slightly more extended galaxy model (Desai et al. 2012). | REAL |
