World Coordinate value at the reference point, axis 1.
| Attribute | Value |
|---|---|
| data type | float |
| enumerated Values | not defined |
| units | degrees |
| example | 5.6 |
| default value | 0.0 |
| special processing | not defined |
| source | Calibration Software |
| software source | |
| calculation | Set by calibration for science files. For Guide Star files, SDP sets CRVAL1 from PPS:dms_baseline_guide_star_view.corrected_ra based on guide star order |
| DB destination | ['ScienceCommonExt.crval1', 'GuideStarExt.crval1'] |
| data type in DB | float |
| instrument | Multiple |
| mode | All |
| product level | 1p |
| FITS hdu | SCI |
| FITS header section | WCS Parameters |