{
  "bibcode": "2014GCN.17046....1C",
  "body": "J. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nN. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), A. Y. Lien (GSFC/UMBC),\nC. B. Markwardt (GSFC), A. Melandri (INAF-OAB), D. M. Palmer (LANL),\nT. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (LANL)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-60 to T+243 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 141109B (trigger #618032)\n(Melandri, et al., GCN Circ. 17038).  The BAT ground-calculated position is\nRA, Dec = 222.453, 73.141 deg, which is \n   RA(J2000)  =  14h 49m 48.8s \n   Dec(J2000) = +73d 08' 26.3\" \nwith an uncertainty of 2.6 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 75%.\n \nThe mask-weighted light curve shows a couple overlapping peaks starting at \n~T-20 sec, peaking at ~T+28 sec, and ending at ~T+60 sec.\nT90 (15-350 keV) is 54.2 +- 5.0 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-13.18 to T+44.18 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.85 +- 0.22.  The fluence in the 15-150 keV band is 6.3 +- 0.9 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T+28.05 sec in the 15-150 keV band\nis 0.4 +- 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/618032/BA/",
  "circularId": 17046,
  "createdOn": 1415556695000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 141109B: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 141109B"
}