- Only part of the event data are used in order to have a more reasonable estimation of burst durations. Only event data within T0+300 s is used, because the mask-weighted light curves have counts slightly below zero for a period of time after T0+300 s, which is likely the cause of battblocks picking a ~ 300 s duration.
- Maybe short GRB with extended emission. The light curve looks similar to a short GRB with extended emission, but the lag analysis is consistent with zero, and thus consistent with the short GRB population (GCN 19276).