TITLE: GCN CIRCULAR NUMBER: 12924 SUBJECT: GRB 120211A: Swift-BAT refined analysis DATE: 12/02/11 16:37:40 GMT FROM: Scott Barthelmy at NASA/GSFC T. N. Ukwatta (MSU) S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC), E. Sonbas (NASA/GSFC/Adiyaman U), G. Sato (ISAS), M. Stamatikos (OSU), J. Tueller (GSFC) (i.e. the Swift-BAT team): Using the data set from T-240 to T+962 sec from recent telemetry downlinks, we report further analysis of BAT GRB 120211A (trigger #514586) (Sonbas, et al., GCN Circ. 12920). The BAT ground-calculated position is RA, Dec = 87.781, -24.795 deg, which is RA(J2000) = 05h 51m 07.5s Dec(J2000) = -24d 47' 43.6" with an uncertainty of 2.1 arcmin, (radius, sys+stat, 90% containment). The partial coding was 64%. The mask-weighted light curve shows 2 or 3 overlapping peaks starting at ~T-10 sec, peaking at ~T+42 sec, and ending at ~T+140 sec. T90 (15-350 keV) is 61.7 +- 6.4 sec (estimated error including systematics). The time-averaged spectrum from T-2.34 to T+64.10 sec is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.50 +- 0.22. The fluence in the 15-150 keV band is 8.1 +- 1.2 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+40.97 sec in the 15-150 keV band is 0.5 +- 0.2 ph/cm2/sec. All the quoted errors are at the 90% confidence level. The results of the batgrbproduct analysis are available at http://gcn.gsfc.nasa.gov/notices_s/514586/BA/