TITLE: GCN CIRCULAR NUMBER: 13407 SUBJECT: Swift Trigger 525554 is noise DATE: 12/07/03 16:06:43 GMT FROM: Scott Barthelmy at NASA/GSFC S.D. Barthelmy (GSFC) and P. Evans (U Leicester) for the Swift team: Using the BAT data set from T-60 to T+243 sec from recent telemetry downlinks, we confirm that Swift-BAT trigger 525554 (Gehrels, et al., GCN Circ. 13401) is due to noise and is not anything astrophysical. We have 9ks of XRT data, starting at T+130s and going out to T+19ks. There are no sources in the BAT error circle, with a 3-sigma upper limit of 8e-4 ct/sec.