TITLE: GCN CIRCULAR NUMBER: 5916 SUBJECT: Swift/BAT trigger #250033 is due to a known source during loss of DATE: 06/12/14 01:42:43 GMT FROM: Jay R. Cummings at NASA/GSFC/Swift Jay R. Cummings (NASA/GSFC UMBC) on behalf of the Swift/BAT Team BAT trigger #250033 occurred at 16:56:30.36 on December 13, 2006. Swift had lost star tracker lock and the position reported to the BAT imaging system was in error by a few tenths of a degree, enough to allow misidentification of a known source, GRS 1915+105. An immediate GCN Notice retraction was issued. Some reports have been issued reacting to this trigger as if it was a real gamma-ray burst. This trigger was not due to a gamma-ray burst or transient.