| A catalog of all objects that 'smell like a 'QSO' - this is the source table of candidates for the QuasarCatalog table, which contains the list of confirmed quasars. |
| QsoCatalogAll basically describes a triple (Target, Spec, Best) of objects that were flagged as QSO and that form a bunch. The triple names 3 objects and thier 'quality flags'. In the simplest case, all three objects were flagged as QSO. And all 3 have the same ra,dec and have very similar magnitudes. In that case the 'QsoCandidate' boolean flags are set for each If the distances magnitude differences are near zero, that means it is a very good match. If one or two of the types (target, spec, photo) were not flagged QSO, we look for a 'surrogate' of that type (target, spec, photo) nearby (within 1.5 arcseconds). If one is found its objectID is put in the triple and the QsoCandidate flag for that object is set to zero. The distance measures indicate the goodness of the spatial match. The psfMag difference measures indicate the goodness of the optical fit. See also QsoConcordance, QsoSpec, QsoBest and QsoTarget. |
| name | type | length | unit | ucd | description |
| HeadObjID | bigint | 8 | ID of first object in bunch (points to QsoBunch) | ||
| tripleID | int | 4 | Unique ID of this triple in the bunch | ||
| QsoPrimary | bit | 1 | 1; this is best triple of bunch | ||
| HeadObjType | char | 6 | type of head object 'TARGET', 'SPEC', 'BEST' | ||
| TargetObjID | bigint | 8 | target QSO or surrogate target object or zero | ||
| SpecObjID | bigint | 8 | spec QSO or surrogate specobj or 0 | ||
| BestObjID | bigint | 8 | best QSO or surrogate best or | ||
| TargetQsoTargeted | bit | 1 | 1: Target was flagged QSO | ||
| SpecQsoConfirmed | bit | 1 | 1; Spec was confirmed QSO | ||
| SpecQsoUnknown | bit | 1 | 1; Spec was class unkonwn | ||
| SpecQsoLargeZ | bit | 1 | 1; SpecObj has Z > 0.6 | ||
| SpecQsoTargeted | bit | 1 | 1; Spec was targeted as QSO | ||
| BestQsoTargeted | bit | 1 | 1: Best was flagged QSO | ||
| dist_Target_Best | float | 8 | distance arcMin | ||
| dist_Target_Spec | float | 8 | distance arcMin | ||
| dist_Best_Spec | float | 8 | distance arcMin | ||
| psfmag_i_diff | float | 8 | |||
| psfmag_g_i_diff | float | 8 |