DateTime start of exposure, formatted as an ISO-8601 string, yyyy-mm-ddThh:mm:ss.sss.
| Attribute | Value |
|---|---|
| data type | string |
| enumerated Values | not defined |
| units | |
| example | 2016-01-18T04:20:43.374 |
| default value | |
| special processing | VALUE_REQUIRED |
| source | Science Data Processing (SDP) |
| software source | |
| calculation | input('DATE-OBS') + 'T' + input('TIME-OBS') |
| DB destination | ['ScienceCommon.date_beg'] |
| data type in DB | datetime2 |
| instrument | ALL |
| mode | All |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Observation identifiers |