XMM-Newton Science Analysis System
attfilter (attfilter-1.4) [xmmsas_20211130_0941-20.0.0]
The following is a short list of typical task invocations:
- attfilter instexpid=PNU003
Generate attitude GTI table (with default name) from the
unscheduled PN exposure 003 in the current ODF from cone-type
filtering expression (with default tolerance angle).
- attfilter instexpid=PNU003 tolangles="0.5*#ARCMIN"
Same as previous example but set the cone half-opening angle to 0.5 arcmin.
- attfilter instexpid=PNU003 tolangles="0.5*#ARCMIN" gtitable=gti.ds:MYGTI
Same as previous example but the resulting GTI table gets the name
- attfilter instexpid=PNU003 filtertype=user expression="abs(%RA%-%RA_MED%)<%TOL_1% && abs(%DEC%-%DEC_MED%)<%TOL_2% && abs(%PA%-%PA_MED%)<%TOL_3%"
Same as first example but the selection expression is given explicitly.
It selects periods where the Right Ascension/Declination of the star tracker
viewing direction and the position angle independently from each other
did not deviate from their median values by more than given tolerance
limits (see also description of parameters expression, and
XMM-Newton SOC -- 2021-11-30