{
  "bibcode": "2014GCN.16799....1S",
  "body": "T. Sakamoto (AGU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (GSFC/UMBC), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nM. 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 the recent telemetry downlink,\nwe report further analysis of BAT GRB 140907A (trigger #611933)\n(Krimm, et al., GCN Circ. 16788).  The BAT ground-calculated position is\nRA, Dec = 48.133, 46.596 deg which is\n    RA(J2000)  =  03h 12m 31.9s\n    Dec(J2000) = +46d 35' 43.8\"\nwith an uncertainty of 1.4 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 65%.\n\nThe mask-weighted light curve shows a single peak with superimposed spikes,\nrunning from approximately T-10 to T+40 sec.  T90 (15-350 keV) is 79.2 +- 31.4 sec\n(estimated error including systematics).\n\nThe time-averaged spectrum from T-91.2 to T+39.9 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.72 +- 0.07.  The fluence in the 15-150 keV band is 4.3 +- 0.2 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+17.47 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/611933/BA/",
  "circularId": 16799,
  "createdOn": 1410192773000,
  "email": "hans.a.krimm@nasa.gov",
  "subject": "GRB 140907A: Swift-BAT refined analysis",
  "submitter": "Hans Krimm at NASA-GSFC  <hans.a.krimm@nasa.gov>",
  "eventId": "GRB 140907A"
}