MIRI LRS position number within spectral steps. Value must be >= 1.
| Attribute | Value |
|---|---|
| data type | integer |
| enumerated Values | not defined |
| units | |
| example | 1 |
| default value | |
| special processing | OPTIONAL |
| source | Science Data Processing (SDP) |
| software source | |
| calculation | Determined by SDP tracking exposures within a dither pattern, see JWSTKD-356. |
| DB destination | ['MiriScience.spec_num'] |
| data type in DB | smallint |
| instrument | MIRI |
| mode | ['MIR_LRS-FIXEDSLIT', 'MIR_LRS-SLITLESS'] |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Dither |