TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5196 SUBJECT: GRB 060602: Swift detection of a burst DATE: 06/06/02 21:49:44 GMT FROM: Scott Barthelmy at NASA/GSFC P Schady (MSSL-UCL), S. D. Barthelmy (GSFC), D. N. Burrows (PSU), J. R. Cummings (NASA/ORAU), J. A. Kennea (PSU), H. A. Krimm (GSFC/USRA), K. M. McLean (LANL/UTD), D. M. Palmer (LANL), T. Sakamoto (NASA/ORAU), G. Sato (GSFC/JSPS/USRA) and M. Stamatikos (NASA/ORAU) report on behalf of the Swift Team: At 21:32:12 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 060602 (trigger=213180). Swift did not slew to the burst because of the Moon constraint. The BAT on-board calculated location is RA,Dec 149.576, +0.323 {09h 58m 18s, +00d 19' 23"} (J2000) with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve has a peak starting at T+0 sec and ending at ~T+15 sec. The peak count rate was ~500 counts/sec (15-350 keV), at ~2 sec after the trigger. This burst will not become visible to Swift NFIs until June 4th, 08:46UT.