{
  "bibcode": "2013GCN.15383....1B",
  "body": "W. H. Baumgartner (GSFC/UMBC), S. D. Barthelmy (GSFC),\nJ. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nA. Y. Lien (NASA/GSFC/ORAU), C. B. Markwardt (GSFC), D. M. Palmer (LANL),\nT. Sakamoto (AGU), M. Stamatikos (OSU), J. Tueller (GSFC),\nT. N. Ukwatta (MSU) (i.e. the Swift-BAT team):\n\nUsing the data set from T-61 to T+242 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 131024B (trigger #575754)\n(Krimm, et al., GCN Circ. 15371).  The BAT ground-calculated position is\nRA, Dec = 144.464, 44.284 deg which is\n    RA(J2000)  =  09h 37m 51.3s\n    Dec(J2000) = +44d 17' 02.1\"\nwith an uncertainty of 2.1 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 40%.\n\nThe mask-weighted light curve shows activity starting around T-10 sec and\ncontinuing to ~T+100 sec.  There are several weak peak superimposed.\nT90 (15-350 keV) is 64.00 +- 22 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-12.59 to T+51.41 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n0.85 +- 0.23.  The fluence in the 15-150 keV band is 1.2 +- 0.2 x 10^-6 erg/cm2. \n  The 1-sec peak photon flux measured from T+10.91 sec in the 15-150 keV band is \n0.1 +- 0.1 ph/cm2/sec.  All the quoted errors are at the 90% confidence level.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/575754/BA/",
  "circularId": 15383,
  "createdOn": 1382727688000,
  "email": "hans.krimm@nasa.gov",
  "subject": "GRB 131024B, Swift-BAT refined analysis",
  "submitter": "Hans Krimm at NASA-GSFC  <hans.krimm@nasa.gov>",
  "eventId": "GRB 131024B"
}