MIRI imaging dither pattern type. When MIRI is the only operating instrument the possible values are CYCLING, REULEAUX, 2-POINT, 4-POINT-SETS, SPARSE-CYCLING, and NONE. When MIRI is the prime instrument with either NIRCam or NIRISS operating in parallel, additional possible values are formatted like #-POINT-MIRI-<filter>-WITH-<instrument>, where # is the number of dither points (2, 3, 4, 9), <filter> is the name of the MIRI filter in use, and <instrument> is NIRCAM or NIRISS.
| Attribute | Value |
|---|---|
| data type | string |
| enumerated Values | ['CYCLING', 'REULEAUX', '2-POINT', '4-POINT-SETS', 'SPARSE-CYCLING', 'NONE', '2-POINT-MIRI-F770W-WITH-NIRCAM', '3-POINT-MIRI-F770W-WITH-NIRCAM', '4-POINT-MIRI-F770W-WITH-NIRCAM', '9-POINT-MIRI-F770W-WITH-NIRCAM', '3-POINT-MIRI-F1000W-WITH-NIRCAM', '4-POINT-MIRI-F1000W-WITH-NIRCAM', '2-POINT-MIRI-F1280W-WITH-NIRCAM', '3-POINT-MIRI-F1280W-WITH-NIRCAM', '4-POINT-MIRI-F1280W-WITH-NIRCAM', '9-POINT-MIRI-F1280W-WITH-NIRCAM', '2-POINT-MIRI-F1500W-WITH-NIRCAM', '3-POINT-MIRI-F1500W-WITH-NIRCAM', '4-POINT-MIRI-F1500W-WITH-NIRCAM', '9-POINT-MIRI-F1500W-WITH-NIRCAM', '2-POINT-MIRI-F1800W-WITH-NIRCAM', '3-POINT-MIRI-F1800W-WITH-NIRCAM', '4-POINT-MIRI-F1800W-WITH-NIRCAM', '2-POINT-MIRI-F2100W-WITH-NIRCAM', '3-POINT-MIRI-F2100W-WITH-NIRCAM', '4-POINT-MIRI-F2100W-WITH-NIRCAM', '9-POINT-MIRI-F2100W-WITH-NIRCAM', '2-POINT-MIRI-F2550W-WITH-NIRCAM', '3-POINT-MIRI-F2550W-WITH-NIRCAM', '4-POINT-MIRI-F2550W-WITH-NIRCAM', '9-POINT-MIRI-F2550W-WITH-NIRCAM', '2-POINT-MIRI-F560W-WITH-NIRISS', '3-POINT-MIRI-F770W-WITH-NIRISS', '4-POINT-MIRI-F770W-WITH-NIRISS', '9-POINT-MIRI-F770W-WITH-NIRISS', '3-POINT-MIRI-F1000W-WITH-NIRISS', '4-POINT-MIRI-F1000W-WITH-NIRISS', '9-POINT-MIRI-F1000W-WITH-NIRISS', '2-POINT-MIRI-F1280W-WITH-NIRISS', '3-POINT-MIRI-F1280W-WITH-NIRISS', '4-POINT-MIRI-F1280W-WITH-NIRISS', '9-POINT-MIRI-F1280W-WITH-NIRISS', '2-POINT-MIRI-F1800W-WITH-NIRISS', '3-POINT-MIRI-F1800W-WITH-NIRISS', '4-POINT-MIRI-F1800W-WITH-NIRISS', '9-POINT-MIRI-F1800W-WITH-NIRISS', '2-POINT-MIRI-F2100W-WITH-NIRISS', '3-POINT-MIRI-F2100W-WITH-NIRISS', '4-POINT-MIRI-F2100W-WITH-NIRISS', '2-POINT-MIRI-F2550W-WITH-NIRISS', '3-POINT-MIRI-F2550W-WITH-NIRISS', '4-POINT-MIRI-F2550W-WITH-NIRISS', '9-POINT-MIRI-F2550W-WITH-NIRISS'] |
| units | |
| example | CYCLING |
| default value | NONE |
| special processing | not defined |
| source | Proposal and Planning System (PPS) |
| software source | PPS:dms_dithers_view.pattern_type|pps_to_scsb_translation| |
| calculation | |
| DB destination | ['ScienceCommon.patttype'] |
| data type in DB | nvarchar(31) |
| instrument | MIRI |
| mode | ['MIR_IMAGE'] |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Dither |