GCN Circular 11546
J. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC) on behalf of the Swift-BAT team: Using the data set from T-70 to T+22 sec from recent telemetry downlinks, we report further analysis of BAT GRB 110107A (a ground-found burst) (Cummings, GCN Circ. 11545). The mask-weighted light curve shows low level multiple overlapping peaks starting at ~T-70 sec and ending at ~T+22 sec. The event-by-event data captured during the slew stops at T+22 sec. Using the on-board raw rates, there is a weak indication that the burst continued out to ~T+45 sec. The time-averaged spectrum from T-70 to T+22 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.58 +- 0.03. The fluence in the 15-150 keV band is at least 5.8 +- 0.5 x 10^-6 erg/cm2. All the quoted errors are at the 90% confidence level.