Data quality check with time difference between events
2007/May
2007/June (1-15)
Data taken in day 16-30 has a different slope (low rate) and the chi square is not good, so these data are excluded from the analysis. According to the filtering wiki page, those data are taken with different DAQ setup.
2007/July (4-31)
The data in day 1-3 has same problem with June's case, so those data are excluded for the analysis
flasher data (excluded): 108895, 108896, 108911, 108912