| Cross-neighbours between UKIDSS GCS and SDSS DR7 sources. |
| All SDSS DR7 sources within 10 arcsec of each merged source from UKIDSS GCS data are recorded in this cross-neighbour table. The table gcsSource was joined to the BestDR7 PhotoObj view (of base table PhotoObjAll) to create these cross-neighbours. Use this table for any cross-querying of UKIDSS GCS data with SDSS DR7. |
| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
|---|---|---|---|---|---|---|
| masterObjID | bigint | 8 | The unique ID in gcsSource (=sourceID) | ID_MAIN | ||
| slaveObjID | bigint | 8 | The unique ID of the neighbour in BestDR7..PhotoObj (=objID) | ID_CATALOG | ||
| distanceMins | real | 4 | arcminutes | Angular separation between neighbours | POS_ANG_DIST_GENERAL | |
| sdssType | tinyint | 1 | SDSS type of neighbour: 3=galaxy; 6=star | CLASS_OBJECT | ||
| sdssPrimary | tinyint | 1 | SDSS flag for neighbour being primary (1) or secondary (0) | CODE_MISC | ||
| Total length | 22 |