TITLE: GCN CIRCULAR NUMBER: 12930 SUBJECT: GRB 120212A: Swift detection of a burst DATE: 12/02/12 09:19:47 GMT FROM: David Palmer at LANL E. Sonbas (NASA/GSFC/Adiyaman Univ.), W. H. Baumgartner (GSFC/UMBC), A. P. Beardmore (U Leicester), C. Guidorzi (U Ferrara), A. Y. Lien (NASA/GSFC/ORAU), K. L. Page (U Leicester) and D. M. Palmer (LANL) report on behalf of the Swift Team: At 09:11:22 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 120212A (trigger=514709). Swift slewed to the burst location at T+44 min due to an Earth limb observing constraint. The BAT on-board calculated location is RA, Dec 43.105, -18.025 which is RA(J2000) = 02h 52m 25s Dec(J2000) = -18d 01' 29" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a single-peaked structure with a duration of about 8 sec. The peak count rate was ~1600 counts/sec (15-350 keV), at ~0 sec after the trigger. Due to an observing constraint, Swift will not slew until T0+44.6 minutes. There will be no XRT or UVOT data until this time. Burst Advocate for this burst is E. Sonbas (edasonbas AT yahoo.com). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.) [GCN OPS NOTE(12feb12): Per author's request, the auto-generated "slewed immediately" sentence was corrected to reflect the delayed slew.]