SEGUE2_TARGET2: SEGUE-2 Secondary Target Bits
| Bit name | Binary digit | Description |
|---|---|---|
| LIGHT_TRAP | 0 | light trap hole |
| SEGUE2_REDDENING | 1 | reddening standard |
| SEGUE2_TEST | 2 | test target |
| SEGUE2_QA* | 3 | repeat target across plates |
| SKY | 4 | empty area for sky-subtraction |
| SEGUE2_SPECPHOTO | 5 | spectrophotometric star |
| GUIDE_STAR | 6 | guide star |
| BUNDLE_HOLE | 7 | bundle hole |
| QUALITY_HOLE | 8 | quality hole |
| HOT_STD | 9 | hot standard |
| SEGUE2_CLUSTER | 10 | SEGUE-2 stellar cluster target |
| SEGUE2_STETSON | 11 | Stetson standard target |
| SEGUE2_CHECKED | 31 | was a checked object |
*QA duplicate observations are not currently marked in segue2_target2 bitmasks. These are only marked in sourcetype in SpecObjAll.
