including files 
XIS0CI_from20060921_1740to20060922_0000.evlist.gz
XIS0CI_from20060922_0000to20060923_0000.evlist.gz
XIS0CI_from20060923_0000to20060923_0654.evlist.gz
XIS0CI_from20060924_0500to20060925_0000.evlist.gz
XIS0CI_from20060925_0000to20060925_0702.evlist.gz
XIS0CI_from20060926_1422to20060927_0000.evlist.gz
XIS0CI_from20060927_0000to20060928_0000.evlist.gz
XIS0CI_from20060928_0000to20060928_0445.evlist.gz
XIS0CI_from20060929_0446to20060930_0000.evlist.gz
XIS0CI_from20060930_0000to20061001_0000.evlist.gz
There are 5 pixels with more than 538 events in 48546 frames in the cal source region.
          18         786        4669
          18         840        3580
          18         894       14382
          18         948       11964
          18        1002       17041