GTI filter syntax

quigley@madraf.astro.wisc.edu
Date: Sun Apr 15 2001 - 19:25:53 EDT


Hello.

I'm trying to use a GTI filter to eliminate some bad times. I'd like to keep:
times less that 6596680,
between 65967880 and 65970680,
between 65911180 and 65981880,
and greater than 65986580.

I've read the blurb on GTI, and can't find any syntax that will work. Can
anyone please give me an example of what will work in this instance?

Thanks in advance.

Mark

******This is the script I'm running****************************

punlearn dmgti
pset dmgti clobber=yes
pset dmgti infile = acisf01520N002_evt2a_ccd5_lc1000.fits
pset dmgti outfile = ccd5_gti.fits
pset dmgti userlimit="time:65966680, 65967880:65970680, 65971180:65981880, 65986580:"
dmgti

punlearn dmcopy
pset dmcopy clobber=yes
pset dmcopy infile = "acisf01520N002_evt2a_ccd5.fits[@ccd_gti.fits]"
pset dmcopy outfile = acisf01520N002_evt2b_ccd5.fits
dmcopy
dmlist acisf01520N002_evt2a_ccd5.fits header |grep EXPO
dmlist acisf01520N002_evt2b_ccd5.fits header |grep EXPO

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