Identifies the NIRSpec fixed slit aperture to be used. The FXD_SLIT keyword value will be one of the five fixed slits for single-object spectroscopy (S200A1, S200A2, S200B1, S400A1, S1600A1).
| Attribute | Value |
|---|---|
| data type | string |
| enumerated Values | ['S200A1', 'S200A2', 'S200B1', 'S400A1', 'S1600A1', 'NONE'] |
| units | |
| example | S200A1 |
| default value | NONE |
| special processing | not defined |
| source | PPS |
| software source | PPS:dms_exposure_specification_view.slit |
| calculation | |
| DB destination | ['NirspecScience.fxd_slit'] |
| data type in DB | nvarchar(20) |
| instrument | NIRSPEC |
| mode | All |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Instrument |