TITLE: GCN CIRCULAR NUMBER: 17060 SUBJECT: Swift Trigger 618391 is not an astrophysical event DATE: 14/11/12 04:33:30 GMT FROM: David Palmer at LANL S. D. Barthelmy (GSFC) and D. M. Palmer (LANL) report on behalf of the Swift Team: At 04:21:55, BAT made an image trigger while the Swift had lost star tracker lock. As a result, it mistakenly identified Sco X-1 as a new source. Due to a Sun constraint, Swift will not slew to the calculated position and current observations will not be affected.