This keyword tracks the use of a 'hybrid' full frame readout mode for NIRSpec exposures. This readout mode has been added to reduce the effects of thermal transients seen when switching from traditional full frame readout to IRS2 readout, which commonly occurs when transitioning from MSATA to MSA. This hybrid mode maintains the data format of traditional readout but mimics the power dissipation of IRS2 mode, such that thermal transients should be minimized.
| Attribute | Value |
|---|---|
| data type | boolean |
| enumerated Values | not defined |
| units | |
| example | F |
| default value | F |
| special processing | OPTIONAL |
| source | Proposal and Planning System (PPS) |
| software source | PPS:nirspec_target_acq.hybrid_full_frame |
| calculation | |
| DB destination | ['NirspecScience.hybridff'] |
| data type in DB | nchar(1) |
| instrument | NIRSPEC |
| mode | NRS_MSATA |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Exposure |