GCN Circular 21896
H. A. Krimm (NSF/USRA), K. L. Page (U Leicester), M. Stamatikos (OSU/NASA/GSFC) and A. Tohuvavohu (PSU) report on behalf of the Swift Team: At 20:27:32 UT, the Swift Burst Alert Telescope (BAT) triggered and located trigger 773082. Swift will not slew to the location. The BAT on-board calculated location is RA, Dec 237.018, -45.634 which is RA(J2000) = 15h 48m 04s Dec(J2000) = -45d 38' 01" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). This location is marginally consistent with the position of the X-ray binary IGR J15479-4529. As is common with an image trigger, the BAT light curve does not show any significant structure. Due to the marginal significance of the BAT detection (6.2 sigma), the lack of a rate trigger and the distance to the putative source (9.5 arcmin), we believe that this is merely a statistical fluctuation not an astrophysical source.