GCN Circular 5923
Subject
Swift-BAT Trigger 250908 is a Cosmic Ray Shower event
Date
2006-12-14T19:58:34Z (18 years ago)
From
Ann M. Parsons at NASA/GSFC/Swift <parsons@milkyway.gsfc.nasa.gov>
J. Cummings (GSFC/UMBC), A. Parsons (GSFC) for BAT,
S. Oates (UCL-MSSL), S. B. Pandey (UCL-MSSL), P. Schady
(UCL-MSSL) for UVOT, P. A. Evans (U Leicester),
K. L. Page (U Leicester) for XRT on behalf of the Swift team:
The Swift-BAT trigger 250908 (S. B. Pandey, et al. GCN Circ. 5918)
at 12:16:53 UT, on 14 DEC 2006 is not a GRB. It is due to a cosmic
ray shower in the spacecraft. All 29 events recorded in the BAT
detector array occurred within a single 100 microsecond
timestamp interval.