XMM-Newton Science Analysis System


omcosflag (omcosflag-1.35) [xmmsas_20230412_1735-21.0.0]

Algorithm

subroutine omcosflag

   read in task parameters

   open OM OSW Image file

   determine file type from datamode in primary header

   read in science window keywords from the primary header

   extract window data from MODES binary table extension

   open OM Tracking History Data Auxiliary file

   determine file type from datamode in primary header

   extract tracking history data from OMTHX1 binary table extension

   check for poor tracking solution and warn

   extract bad pixel map from CAL

   calculate maximum drift in x and y

   extract localised bad pixel map allowing for maximum drifts

   over sample localised bad pixel map

   loop over tracking frames to construct oversampled quality array

      loop over discretised tracking steps

         logical OR oversampled quality array with shifted oversampled bad pixel map

      end loop

   end loop

   add QUALITY extension to OM OSW Image file

   resize and bin quality array with appropriate binning factors

   write 16-bit quality array to QUALITY extension of OM OSW Image file

end subroutine omcosflag