including files 
XIS1CI_from20060830_2151to20060831_0000.evlist.gz
XIS1CI_from20060831_0000to20060831_2349.evlist.gz
There are 17 pixels with more than 323 events in 10006 frames in the cal source region.
          83         822         644
          19         830         369
         214         863        1381
        1010         863         478
          83         876         877
          27         894        1955
          27         914         357
          57         917         733
         864         917         546
          83         930        1106
         179         950        4376
         249         967        1429
          57         971         706
        1010         971         625
          83         984        1184
         981        1001         358
         977        1002         457