The number of World Coordinate System axes. These axes are used to convert pixel positions to Right Ascension and Declination. For level 1 and level 2 science data, WCSAXES = 2. For spectroscopic modes, WCSAXES = 3, to include the wavelength dimension.
| Attribute | Value |
|---|---|
| data type | integer |
| enumerated Values | not defined |
| units | |
| example | 2 |
| default value | 2 |
| special processing | not defined |
| source | Science and Operations Center Project Reference Database (PRD) |
| software source | |
| calculation | |
| DB destination | ['ScienceCommonExt.wcsaxes', 'GuideStarExt.wcsaxes'] |
| data type in DB | smallint |
| instrument | Multiple |
| mode | All |
| product level | 1p |
| FITS hdu | SCI |
| FITS header section | WCS Parameters |