Position angle of aperture used with target (deg). The S&OC Project Reference Database (S&OC PRD) definition of an aperture includes a reference position in the V2-V3 frame. The position angle of the aperture reference position is calculated from the position angle of the V3 axis and S&OC PRD defined translations from V2-V3 to aperture reference frames.
| Attribute | Value |
|---|---|
| data type | float |
| enumerated Values | not defined |
| units | degrees |
| example | |
| default value | 0 |
| special processing | not defined |
| source | Proposal and Planning System (PPS) |
| software source | |
| calculation | |
| DB destination | ['ScienceCommonExt.pa_aper'] |
| data type in DB | float |
| instrument | Multiple |
| mode | All |
| product level | 1b |
| FITS hdu | SCI |
| FITS header section | Aperture |