GCN Circular 14910
S.D. Barthelmy (GSFC), J.R. Cummings (GSFC/UMBC) and C.B. Markwardt (GSFC) on behalf of the Swift Team report: Using the data set from T-116 to T+49 sec from recent telemetry downlinks, we report on further analysis of BAT trigger #557910 that the trigger is not due to anything astrophysical. The trigger was caused by incorrect spacecraft attitude information applied to a known source.