| Cross-neighbours between SSA Source objects and the SDSS DR2. |
| All SDSS DR2 objects within 10 arcsec of each SSA Source object are recorded in the cross-neighbours table. This table can be used, for example, to get SDSS counterparts to an SSA object with a defined positional tolerance (up to the maximum angular radius of 10 arcsec). The BestDR2..PhotoPrimary view and SSA.Source table were joined to generate the cross-neighbours. |
| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
|---|---|---|---|---|---|---|
| ssaID | bigint | 8 | The object identifier from the SSA Source table | ID_MAIN | ||
| sdssID | bigint | 8 | The object identifier from BestDR2.PhotoObj | ID_CATALOG | ||
| distanceMins | real | 4 | arcminutes | The angular separation of the cross-neighbour | POS_ANG_DIST_GENERAL | |
| sdssType | int | 4 | The SDSS image classification flag | CLASS_OBJECT | ||
| sdssPrimary | tinyint | 1 | CODE_MISC | |||
| Total length | 25 |