The readout pattern (READPATT) name designates a pre-defined combination of NFRAMES, GROUPGAP, and NRESETS that was used for the exposure. Each unique combination of these parameters determines not only the timing of detector readouts and resets during an exposure, but also the cadence of the resulting data frames that are downlinked from the telescope.
| Attribute | Value |
|---|---|
| data type | string |
| enumerated Values | ['SLOW', 'FAST', 'FASTGRPAVG', 'DEEP8', 'DEEP2', 'MEDIUM8', 'MEDIUM2', 'SHALLOW4', 'SHALLOW2', 'BRIGHT2', 'BRIGHT1', 'RAPID', 'NRSRAPID', 'NRS', 'NRSSLOW', 'NRSN8R2', 'NRSN16R4', 'NRSN32R8', 'ID', 'ACQ1', 'ACQ2', 'TRACK', 'FINEGUIDE', 'FGS60', 'FGS840', 'FGS8370', 'FGSRAPID', 'FGS', 'NISRAPID', 'NIS', 'NRSIRS2', 'N/A', 'ANY', 'NRSIRS2RAPID', 'FASTGRPAVG8', 'FASTGRPAVG16', 'FASTGRPAVG32', 'FASTGRPAVG64', 'NRSRAPIDD1', 'NRSRAPIDD2', 'NRSRAPIDD6', 'FASTR100', 'FASTR1', 'SLOWR1'] |
| units | |
| example | |
| default value | |
| special processing | VALUE_REQUIRED |
| source | Observatory Status File (OSF) |
| software source | |
| calculation | Datamode table lookup |
| DB destination | ['ScienceCommon.readpatt', 'GuideStar.readpatt'] |
| data type in DB | nvarchar(30) |
| instrument | Multiple |
| mode | All |
| product level | 1a |
| FITS hdu | PRIMARY |
| FITS header section | Exposure |