| Cross-neighbours between atlas and PhotoObj. |
| All BestDR9..PhotoObj sources within 10.0 arcsec of each source from ATLAS data are recorded in this cross-neighbour table. The table atlasSource was joined to the PhotoObj table to create these cross-neighbours. Use this table for any cross-querying of ATLAS data with sources from SDSS-DR9. |
| Name | Type | Length | Unit | Description | Default Value | Unified Content Descriptor |
|---|---|---|---|---|---|---|
| masterObjID | bigint | 8 | The unique ID in atlasSource (=sourceID) | meta.id;meta.main | ||
| slaveObjID | bigint | 8 | The unique ID of the neighbour in BestDR9..PhotoObj (=objID) | meta.id;meta.dataset | ||
| distanceMins | real | 4 | arcminutes | Angular separation between neighbours | pos.angDistance | |
| sdssType | tinyint | 1 | SDSS type of neighbour: 3=galaxy; 6=star | 255 | src.class | |
| sdssPrimary | tinyint | 1 | SDSS flag for neighbour being primary (1) or secondary (0) | 255 | meta.code | |
| Total length | 22 |