The value field shall contain an integer that shall be used in any way appropriate to define the data structure. In IMAGE extensions this keyword must have the value 0.
| Attribute | Value |
|---|---|
| data type | integer |
| enumerated Values | not defined |
| units | bytes |
| example | 0 |
| default value | 0 |
| special processing | not defined |
| source | Science Data Processing (SDP) |
| software source | |
| calculation | |
| DB destination | [] |
| data type in DB | |
| instrument | Multiple |
| mode | All |
| product level | 1A |
| FITS hdu | ZEROFRAME |
| FITS header section | Basic |