GCN Circular 28919
M. G. Bernardini (INAF-OAB), P. D'Avanzo (INAF-OAB), N. J. Klingler (PSU), K. L. Page (U Leicester), T. Sbarrato (INAF-OAB) and A. Tohuvavohu (U Toronto) report on behalf of the Neil Gehrels Swift Observatory Team: At 07:08:05 UT, the Swift Burst Alert Telescope (BAT) triggered and located 1A 0535+262 (trigger=1007266). Swift did not slew to the location due to higher priority for the pre-planned target. The BAT on-board calculated location is RA, Dec 84.721, +26.327 which is RA(J2000) = 05h 38m 53s Dec(J2000) = +26d 19' 36" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). This trigger was due to the current very bright outburst of this object (>7 Crab at times) combined with technical effects from yesterday's Star Tracker Loss-of-Lock misidentification.