TITLE: GCN CIRCULAR NUMBER: 5904 SUBJECT: GRB 061210: Swift-BAT detection of a short burst DATE: 06/12/10 12:52:43 GMT FROM: Scott Barthelmy at NASA/GSFC J. K. Cannizzo (NASA/UMBC), L. M. Barbier (NASA/GSFC), S. D. Barthelmy (GSFC), N. Gehrels (NASA/GSFC), C. B. Markwardt (GSFC/UMD), J. P. Osborne (U Leicester), K. L. Page (U Leicester), D. M. Palmer (LANL) and M. Stamatikos (NASA/ORAU) report on behalf of the Swift Team: At 12:20:39 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 061210 (trigger=243690). Swift did not slew because of the Moon observing constraint -- this burst is 4 deg from the Moon. The BAT on-board calculated location is RA, Dec 144.514, +15.632 which is RA(J2000) = 09h 38m 03s Dec(J2000) = +15d 37' 56" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows a single spike structure with a duration of about 0.8 sec. The peak count rate was ~27,000 counts/sec (15-350 keV), at ~0 sec after the trigger. No XRT or UVOT observations will be possible until the burst emerges from the spacecraft Moon constraint in about 1.5 days. [GCN OPS NOTE(10dec06): Per author's request, a typo in the first author's initials was corrected from "J, K. C." to "J. K.".]