An OM reference frame file (*OM*RFX.FIT) is created for each exposure of
an observation. Each file consists of a single binary table, with
each row representing one frame.
The binary table consists of the columns listed in
Table 19. A more detailed description can be
found in [14].
| Name | Type |
Units | Description |
| XROLL | 1J | PIXEL | Roll centre x coordinate |
| YROLL | 1J | PIXEL | Roll centre y coordinate |
| GOODSTAR | 1J | COUNTER | No. of good guide stars |
| BADSTAR | 1J | COUNTER | No. of bad guide stars |
| GGSX | 16J | PIXEL | Good guide star x coordinate |
| GGSY | 16J | PIXEL | Good guide star y coordinate |
| GGSCNTS | 16J | COUNTS | Good guide star counts |
| GGSXMIN | 16J | PIXEL | Good guide star box minimum X |
| GGSXMAX | 16J | PIXEL | Good guide star box maximum X |
| GGSYMIN | 16J | PIXEL | Good guide star box minimum Y |
| GGSYMAX | 16J | PIXEL | Good guide star box maximum Y |
| GGSX2MNT | 16J | PIXEL | Good guide star X 2nd momentum |
| GGSY2MNT | 16J | PIXEL | Good guide star Y 2nd momentum |
| GGSXYMNT | 16J | PIXEL | Good guide star XY 2nd momentum |
| GGSPKCO | 16J | PIXEL | Good guide star peak coordinates |
| GGSPKCNT | 16J | COUNTS | Good guide star peak counts |
| GGSQUAL | 16J | Good guide star quality | |
| BGSX | 16J | PIXEL | Bad guide star x coordinate |
| BGSY | 16J | PIXEL | Bad guide star y coordinate |
| BGSCNTS | 16J | COUNTS | Bad guide star counts |
| BGSXMIN | 16J | PIXEL | Bad guide star box minimum X |
| BGSXMAX | 16J | PIXEL | Bad guide star box maximum X |
| BGSYMIN | 16J | PIXEL | Bad guide star box minimum Y |
| BGSYMAX | 16J | PIXEL | Bad guide star box maximum Y |
| BGSX2MNT | 16J | PIXEL | Bad guide star X 2nd momentum |
| BGSY2MNT | 16J | PIXEL | Bad guide star Y 2nd momentum |
| BGSXYMNT | 16J | PIXEL | Bad guide star XY 2nd momentum |
| BGSPKCO | 16J | PIXEL | Bad guide star peak coordinates |
| BGSPKCNT | 16J | COUNTS | Bad guide star peak counts |
| BGSQUAL | 16J | Bad guide star quality |
See Sect. 9 for convention