GCN Circular 11504
J. R. Cummings (GSFC/UMBC) and T. Sakamoto (GSFC/UMBC) on behalf of the Swift-BAT team: We report further results of BAT observations of GRB 101225A (Racusin, et al., GCN Circ. 11493). The most intense emission observed by BAT from GRB 101225A in the 14-50 keV range occurred from T+1372 to T+1672 seconds, later than previously reported (Palmer, et al. GCN circ #11500). The source was not in the BAT field of view from T-4500 to T-100 sec, from T+1088 to T+1372 sec, and from T+1758 to T+4936 sec. There was no detectable emission prior to T-4500 sec, and the burst appears to have started sometime before the source entered the BAT field of view at T-100 sec. The spectrum from T+1372 to T+1672 seconds is similar to the earlier report, with a single power law photon index of 1.87 +- 0.21. The total fluence was greater, possibly much greater, than 3 x 10^-6 ergs/cm^2 or about 1.6 times the fluence reported earlier. BAT detection of extremely long emission is similar to that of GRB 060218 and GRB 100316D (both spectroscopically confirmed SN-GRBs).