Telescope roll angle with respect to equatorial coordinates; calculated as PA_V3 - V3I_YANG
| Attribute | Value |
|---|---|
| data type | float |
| enumerated Values | not defined |
| units | degrees |
| example | 176.24 |
| default value | |
| special processing | VALUE_REQUIRED |
| source | Calibration Software |
| software source | |
| calculation | input('PA_V3') - input('V3I_YANG') |
| DB destination | ['NirissScience.pa'] |
| data type in DB | float |
| instrument | NIRISS |
| mode | NIS_AMI |
| product level | 3 |
| FITS hdu | PRIMARY |
| FITS header section | NIRISS AMI OIFITS information |