The NIRISS direct image dither number of points. This field is used when pattern type is WFSS, IMAGING, or MIMF. Possible values are: 1, 2, 3, 4, 6, 8, 9, 12, 16.
| Attribute | Value |
|---|---|
| data type | integer |
| enumerated Values | not defined |
| units | |
| example | 2 |
| default value | |
| special processing | OPTIONAL |
| source | Proposal and Planning System (PPS) |
| software source | PPS:dms_dithers_view.image_dither_number_of_points |
| calculation | |
| DB destination | ['NirissScience.nrimdtpt'] |
| data type in DB | int |
| instrument | NIRISS |
| mode | ['NIS_EXTCAL', 'NIS_IMAGE', 'NIS_WFSS'] |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Dither |