- T100, T90, and T50 are lower limits. This is the naked-eye bursts. The burst lasts beyond the end of event data. Also, there are some large data gap from lost of data due to an on-board data product buffer overflow (GCN 7462). - The event data are only available for part of the burst duration. - Spectral analysis is only available for part of the burst duration. - Obvious data gap within the burst duration.