including files 
XIS2_from20050727_1938to20050727_2344.evlist.gz
XIS2_from20050728_0002to20050729_0000.evlist.gz
XIS2_from20050729_0000to20050730_0000.evlist.gz
XIS2_from20050730_0000to20050730_1655.evlist.gz
There are 4 pixels with more than 170 events in 9328 frames in the cal source region.
         959         905         613
         959         913        1345
         219         947         503
         219         955         991