TruthSummary
Summary properties of objects from the DESC DC2 truth catalog, as described in arXiv:2101.04855. Includes the noiseless astrometric and photometric parameters.
Columns
| name | datatype | description | unit | nullable | ivoa:ucd | tap:column_index | tap:principal | votable:arraysize | length |
|---|---|---|---|---|---|---|---|---|---|
| id_truth_type primary key | char | Combination of id and truth_type fields, used for JOINs with MatchesTruth. | true | meta.id | 0 | 1 | 22 | 22 | |
| id | char | Unique object ID | true | meta.id;meta.main | 1 | 1 | 20 | 20 | |
| host_galaxy | long | ID of the host galaxy for a SN/AGN entry (-1 for other truth types) | true | 999 | 1 | ||||
| ra | double | Right Ascension | deg | false | pos.eq.ra | 2 | 1 | ||
| dec | double | Declination | deg | false | pos.eq.dec | 3 | 1 | ||
| redshift | float | Redshift | true | 999 | 1 | ||||
| is_variable | int | 1 for a variable source | true | 999 | 1 | ||||
| is_pointsource | int | 1 for a point source | true | 999 | 1 | ||||
| flux_u | float | Static flux value in u | nJy | true | 999 | 1 | |||
| flux_g | float | Static flux value in g | nJy | true | 999 | 1 | |||
| flux_r | float | Static flux value in r | nJy | true | 999 | 1 | |||
| flux_i | float | Static flux value in i | nJy | true | 999 | 1 | |||
| flux_z | float | Static flux value in z | nJy | true | 999 | 1 | |||
| flux_y | float | Static flux value in y | nJy | true | 999 | 1 | |||
| flux_u_noMW | float | Static flux value in u, without Milky Way extinction (i.e., dereddened) | nJy | true | 999 | 0 | |||
| flux_g_noMW | float | Static flux value in g, without Milky Way extinction (i.e., dereddened) | nJy | true | 999 | 0 | |||
| flux_r_noMW | float | Static flux value in r, without Milky Way extinction (i.e., dereddened) | nJy | true | 999 | 0 | |||
| flux_i_noMW | float | Static flux value in i, without Milky Way extinction (i.e., dereddened) | nJy | true | 999 | 0 | |||
| flux_z_noMW | float | Static flux value in z, without Milky Way extinction (i.e., dereddened) | nJy | true | 999 | 0 | |||
| flux_y_noMW | float | Static flux value in y, without Milky Way extinction (i.e., dereddened) | nJy | true | 999 | 0 | |||
| mag_r | float | Magnitude in r | mag | true | 999 | 1 | |||
| cosmodc2_hp | long | Healpix ID in cosmoDC2 (for galaxies only; -1 for stars and SNe) | true | 999 | 0 | ||||
| cosmodc2_id | long | Galaxy ID in cosmoDC2 (for galaxies only; -1 for stars and SNe) | true | 999 | 0 | ||||
| truth_type | long | 1 for galaxies, 2 for stars, and 3 for SNe | true | 999 | 1 |