including files 
XIS0CI_from20070501_1856to20070502_0000.evlist.gz
XIS0CI_from20070502_0000to20070503_0000.evlist.gz
XIS0CI_from20070503_0000to20070503_1830.evlist.gz
XIS0CI_from20070504_1130to20070505_0000.evlist.gz
XIS0CI_from20070505_0000to20070506_0000.evlist.gz
XIS0CI_from20070506_0000to20070507_0000.evlist.gz
XIS0CI_from20070507_0000to20070507_1436.evlist.gz
XIS0CI_from20070509_0158to20070510_0000.evlist.gz
XIS0CI_from20070510_0000to20070511_0000.evlist.gz
XIS0CI_from20070511_0000to20070512_0000.evlist.gz
XIS0CI_from20070512_0000to20070512_1446.evlist.gz
XIS0CI_from20070513_0000to20070514_0000.evlist.gz
XIS0CI_from20070514_0000to20070514_2018.evlist.gz
XIS0CI_from20070518_1543to20070519_0000.evlist.gz
XIS0CI_from20070519_0000to20070519_2346.evlist.gz
XIS0CI_from20070520_0027to20070520_2344.evlist.gz
XIS0CI_from20070521_0026to20070522_0000.evlist.gz
XIS0CI_from20070522_0000to20070523_0000.evlist.gz
XIS0CI_from20070523_0000to20070524_0000.evlist.gz
XIS0CI_from20070524_0000to20070524_2359.evlist.gz
XIS0CI_from20070525_0021to20070525_2357.evlist.gz
XIS0CI_from20070526_0020to20070526_2332.evlist.gz
XIS0CI_from20070527_0018to20070527_2332.evlist.gz
XIS0CI_from20070528_0016to20070528_2351.evlist.gz
XIS0CI_from20070529_0015to20070529_2349.evlist.gz
XIS0CI_from20070530_0014to20070530_2346.evlist.gz
XIS0CI_from20070531_0013to20070531_2345.evlist.gz
There are 6 pixels with more than 1898 events in 189829 frames in the cal source region.
          18         786        6727
          18         840        8930
         879         842       55307
          18         894       12011
          18         948       28434
          18        1002       27519