TITLE: GCN CIRCULAR NUMBER: 10826 SUBJECT: Swift Trigger 424040 is not a GRB DATE: 10/06/06 22:13:48 GMT FROM: Scott Barthelmy at NASA/GSFC P. A. Curran (UCL-MSSL), S. D. Barthelmy (GSFC), A. P. Beardmore (U Leicester), D. N. Burrows (PSU), J. M. Gelbord (PSU), S. T. Holland (CRESST/USRA/GSFC), J. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA), O. M. Littlejohns (U Leicester), S. R. Oates (UCL-MSSL), C. Pagani (U Leicester), K. L. Page (U Leicester), D. M. Palmer (LANL), A. Rowlinson (U Leicester), R. L. C. Starling (U Leicester) and L. Vetere (PSU) report on behalf of the Swift Team: At 21:58:36 UT, the Swift Burst Alert Telescope (BAT) triggered on a noise fluctuation while entering the SAA (trigger=424040). We do not believe this is anything astrophysical. The XRT began observing the field at 21:59:58.0 UT, 81.9 seconds after the BAT trigger. No source was detected in the promptly available XRT data.