Identifies the element of the pupil wheel that was in the optical path for the exposure. Each channel (short, long) of each NIRCam module (A, B) is equipped with a pupil wheel containing a mixture of bandpass filters, coronagraphic pupils, weak lenses, grisms, pinholes, and a flatfield/dark element. Each pupil wheel has 11 elements and 1 clear position.
| Attribute | Value |
|---|---|
| data type | string |
| enumerated Values | ['CLEAR', 'FLAT', 'F162M', 'F164N', 'GDHS0', 'GDHS60', 'MASKBAR', 'MASKIPR', 'MASKRND', 'PINHOLES', 'WLM8', 'WLP8', 'F323N', 'F405N', 'F466N', 'F470N', 'GRISMC', 'GRISMR', 'GRISMV2', 'GRISMV3', 'N/A', 'ANY'] |
| units | |
| example | F470N |
| default value | |
| special processing | not defined |
| source | Observatory Status File (OSF) |
| software source | |
| calculation | query NrcMechanism (pupilShortA, pupilLongA, pupilShortB, or pupilLongB) based on MODULE and DETECTOR |
| DB destination | ['NircamScience.pupil'] |
| data type in DB | nvarchar(30) |
| instrument | NIRCAM |
| mode | ['NRC_IMAGE', 'NRC_SLITLESS', 'NRC_TACQ', 'NRC_CORON', 'NRC_FOCUS', 'NRC_DARK', 'NRC_FLAT', 'NRC_LED', 'NRC_WFSC'] |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Instrument |