- Only part of the event data are used in order to have a more reasonable estimation of burst durations. Background subtraction after ~T+600 s has some problem, causing counts to be consistently lower than zero and battblock thus did not get a reasonable T90. Therefore, only data before ~T+600 s is used in this analysis.
- T100, T90, and T50 might be lower limits. There may be some emission before the burst came into the BAT FOV at ~T-50 s.