• Created by Unknown User (abdo), last modified on Oct 28, 2010

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I have been observing some issues with the data we get from the FSSC. This started taking place after the FSSC implemented the weekly boundaries in the ft1 files.
The aperture photometry light curve below is for Vela and it shows some really strange behavior in the last 3 weeks or so:

  1. Run gtselect with time selection and NO selection on photon class then run fselect to select diffuse class photons
gtselect infile=../list outfile=stepone_gtselect_allclasses_timeselection.fits ra=0.0 dec=0.0
rad=180.0 tmin=306288800 tmax= 309315444 emin=10.0 emax=1e7 zmax=180.0
fselect infile=stepone_gtselect_allclasses_timeselection.fits outfile=stepone_gtselect_allclasses_timeselection_fselect_EVENT_CLASS_3.fits
expr="(EVENT_CLASS==3)" clobber=yes
  1. Run gtselect with NO time selection and NO selection on photon class then run fselect to select diffuse class photons
gtselect infile=../list outfile=steptwo_gtselect_allclasses_notimeselection.fits ra=0.0 dec=0.0
 rad=180.0 tmin=INDEF tmax=INDEF emin=10.0 emax=1e7 zmax=180.0
fselect infile=steptwo_gtselect_allclasses_notimeselection.fits outfile=steptwo_gtselect_allclasses_notimeselection_fselect_EVENT_CLASS_3.fits expr="(EVENT_CLA
SS==3)" clobber=yes=180.0 
  1. Run gtselect with time selection and selection on photon class 
gtselect infile=../list outfile=stepthree_gtselect_evclsmin_3_timeselection.fits ra=0.0 dec=0.0 rad=180.0 tmin=306288800 tmax= 309315444 emin=10.0 emax
=1e7 zmax=180.0 evclsmin=3
  1. Run gtselect with NO time selection but with selection on photon class
 gtselect infile=../list outfile=stepfour_gtselect_evclsmin_3_notimeselection.fits ra=0.0 dec=0.0 rad=180.0 tmin=INDEF tmax=INDEF emin=10.0 emax=1e7 zma
x=180.0 evclsmin=3
  1. Run fselect to select diffuse class photons then use ft1merge to merge files
fselect infile=/Projects/GLAST/data/FSSC/weekly/photon/lat_photon_weekly_w120_p6v3_v001.fits outfile=evclsmin_3_lat_photon_weekly_w120_p6v3_v001.fits
expr="(EVENT_CLASS==3)" clobber=yes 
fselect infile=/Projects/GLAST/data/FSSC/weekly/photon/lat_photon_weekly_w121_p6v3_v001.fits outfile=evclsmin_3_lat_photon_weekly_w121_p6v3_v001.fits
expr="(EVENT_CLASS==3)" clobber=yes 
fselect infile=/Projects/GLAST/data/FSSC/weekly/photon/lat_photon_weekly_w122_p6v3_v001.fits outfile=evclsmin_3_lat_photon_weekly_w122_p6v3_v001.fits
expr="(EVENT_CLASS==3)" clobber=yes 
fselect infile=/Projects/GLAST/data/FSSC/weekly/photon/lat_photon_weekly_w123_p6v3_v001.fits outfile=evclsmin_3_lat_photon_weekly_w123_p6v3_v001.fits
expr="(EVENT_CLASS==3)" clobber=yes 
fselect infile=/Projects/GLAST/data/FSSC/weekly/photon/lat_photon_weekly_w124_p6v3_v001.fits outfile=evclsmin_3_lat_photon_weekly_w124_p6v3_v001.fits 
expr="(EVENT_CLASS==3)" clobber=yes
  1. Run fselect to select diffuse class photons then use gtselect to merge files
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