{
  "bibcode": "2014GCN.17044....1B",
  "body": "W. H. Baumgartner (GSFC/UMBC), S. D. Barthelmy (GSFC), J. R. Cummings (GSFC/UMBC),\nP. D'Avanzo (INAF-OAB), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), 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-239 to T+963 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 141109A (trigger #618024)\n(D'Avanzo, et al., GCN Circ. 17037).  The BAT ground-calculated position is\nRA, Dec = 144.563, -0.581 deg, which is \n   RA(J2000)  =  09h 38m 15.0s \n   Dec(J2000) = -00d 34' 52.4\" \nwith an uncertainty of 3.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 60%.\n \nThe mask-weighted light curve shows a weak peak from ~T+0 to ~T+40 sec,\nthen the bulk of the emission came from ~T+60 to ~T+190 sec,  and then a tail\nextending out to ~T+380 sec.  T90 (15-350 keV) is 200 +- 47 sec\n(estimated error including systematics).\n \nThe time-averaged spectrum from T+0.60 to T+323.15 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.52 +- 0.07.  The fluence in the 15-150 keV band is 6.8 +- 0.3 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+117.39 sec in the 15-150 keV band\nis 2.5 +- 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/618024/BA/",
  "circularId": 17044,
  "createdOn": 1415556172000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 141109A: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 141109A"
}