{
  "bibcode": "2012GCN.13154....1M",
  "body": "C. B. Markwardt (GSFC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL), N. Gehrels (GSFC),\nH. A. Krimm (GSFC/USRA), C. Pagani (U Leicester), D. M. Palmer (LANL),\nT. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos (OSU),\nJ. Tueller (GSFC), T. N. Ukwatta (MSU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+963 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 120328A (trigger #518792)\n(Pagani, et al., GCN Circ. 13147).  The BAT ground-calculated position is\nRA, Dec = 241.607, -39.322 deg, which is \n   RA(J2000)  =  16h 06m 25.8s \n   Dec(J2000) = -39d 19' 20.8\" \nwith an uncertainty of 1.8 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 100%.\n \nThe mask-weighted light curve shows two overlapping peaks.  The first starts\nat ~T-20 sec, peaks at ~T+0; the second peaks at ~T+8 sec and ends at ~T+20 sec.\nT90 (15-350 keV) is 24.2 +- 6.7 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-17.27 to T+20.61 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.87 +- 0.20.  The fluence in the 15-150 keV band is 4.7 +- 0.6 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T+0.11 sec in the 15-150 keV band\nis 0.7 +- 0.1 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/518792/BA/",
  "circularId": 13154,
  "createdOn": 1332937021000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 120328A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 120328A"
}