TITLE: GCN CIRCULAR NUMBER: 20099 SUBJECT: Swift Trigger 718766 is not an astrophysical event. DATE: 16/10/22 21:25:27 GMT FROM: Scott Barthelmy at NASA/GSFC S. D. Barthelmy (GSFC), D. Malesani (DARK/NBI and DTU Space), D. M. Palmer (LANL) and T. N. Ukwatta (LANL) report on behalf of the Swift Team: At 20:45:34 UT, due to a known race condition in the Swift/BAT software, BAT misidentified 4U 1700-377 as an unknown transient (Trigger 718766). This is not an astrophysical event.