The telescope V3 coordinate, in units of arc seconds, at the aperture reference point. Taken from the SIAF 'V3Ref' entry
| Attribute | Value |
|---|---|
| data type | float |
| enumerated Values | not defined |
| units | arcsec |
| example | |
| default value | |
| special processing | VALUE_REQUIRED |
| source | Science and Operations Center Project Reference Database (PRD) |
| software source | PRD:Aperture.V3Ref |
| calculation | |
| DB destination | ['ScienceCommonExt.v3_ref'] |
| data type in DB | float |
| instrument | Multiple |
| mode | All |
| product level | 1b |
| FITS hdu | SCI |
| FITS header section | WCS Parameters |