Linear transformation matrix between pixel axes 2 and intermediate coordinate axes 1. The PC1_2 matrix must not be singular.
| Attribute | Value |
|---|---|
| data type | float |
| enumerated Values | not defined |
| units | degrees |
| example | 0.0 |
| default value | 0 |
| special processing | not defined |
| source | Science and Operations Center Project Reference Database (PRD) |
| software source | |
| calculation | |
| DB destination | ['ScienceCommonExt.pc1_2', 'GuideStarExt.pc1_2'] |
| data type in DB | float |
| instrument | Multiple |
| mode | All |
| product level | 1p |
| FITS hdu | SCI |
| FITS header section | WCS Parameters |