clear all proceed=yes set datadir ./ read e %1%_gis2.evt set binsize 128 set image sky filter region gis2_src_reg.tmp filter pha_cutoff 60 900 extract spectrum save spectrum gis2_spec_src.tmp clobber=yes group=no filter region gis2_bgd_reg.tmp extract spectrum save spectrum gis2_spec_bgd.tmp clobber=yes group=no exit save=no