Indicates the axis and direction of slow readout (values = 1, 2, -1, -2). The digit value is set by whether axis 1 or 2 is the fast/slow readout axis. The sign indicates the direction of the readout with respect to the science frame.
| Attribute | Value |
|---|---|
| data type | integer |
| enumerated Values | not defined |
| units | |
| example | 1 |
| default value | |
| special processing | VALUE_REQUIRED |
| source | Science Data Processing (SDP) |
| software source | calculation |
| calculation | Lookup in software |
| DB destination | ['ScienceCommon.slowaxis', 'GuideStar.slowaxis'] |
| data type in DB | int |
| instrument | Multiple |
| mode | All |
| product level | 1b |
| FITS hdu | PRIMARY |
| FITS header section | Subarray parameters |