XMM-Newton Data Files Handbook


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Next: 4.1.7.5 ``Priority files'' Up: 4.1.7 OM science files Previous: 4.1.7.3 OM Tracking History Data Auxiliary File


4.1.7.4 OM Reference Frame Data Auxiliary File

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].

Table 19: OM Reference Frame Auxiliary file (*OM*RFX.FIT) binary table columns
Name Type$^a$ 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
$^a$See Sect. 9 for convention


next up previous contents
Next: 4.1.7.5 ``Priority files'' Up: 4.1.7 OM science files Previous: 4.1.7.3 OM Tracking History Data Auxiliary File
European Space Agency - XMM-Newton Science Operations Centre