{
  "bibcode": "2012GCN.13137....1K",
  "body": "H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC),\nC. B. Markwardt (GSFC), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC),\nG. Sato (ISAS), M. Stamatikos (OSU), B. Sbarufatti (INAF-OAB/PSU),\nJ. Tueller (GSFC), T. N. Ukwatta (MSU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-240 to T+962 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 120327A (trigger #518731)\n(Sbarufatti, et al., GCN Circ. 12123).  The BAT ground-calculated position is\nRA, Dec = 246.854, -29.415 deg, which is \n   RA(J2000)  =  16h 27m 25.0s \n   Dec(J2000) = -29d 24' 55.5\" \nwith an uncertainty of 1.1 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 76%.\n \nThe mask-weighted light curve shows 3 main peaks (two weak peaks, then the\nmain peak).  The first starts at ~T-25 sec, peaks at ~T+2 sec;  and the second\npeaks at ~T+18 sec.  The main peak starts at ~T+30 sec, peaks at ~T+37 sec,\nand returns to baseline at ~T+180 sec.  T90 (15-350 keV) is 62.9 +- 7.5 sec\n(estimated error including systematics).\n \nThe time-averaged spectrum from T-15.79 to T+74.58 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.52 +- 0.06.  The fluence in the 15-150 keV band is 3.6 +- 0.1 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+37.09 sec in the 15-150 keV band\nis 3.9 +- 0.2 ph/cm2/sec.  All the quoted errors are at the 90% confidence\nlevel. \n \nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/518731/BA/",
  "circularId": 13137,
  "createdOn": 1332850938000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 120327A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 120327A"
}