{
  "bibcode": "2014GCN.16284....1S",
  "body": "M. Stamatikos (OSU), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nJ. R. Cummings (GSFC/UMBC), P. D'Avanzo (INAF-OAB), N. Gehrels (GSFC),\nH. A. Krimm (GSFC/USRA), A. Y. Lien (NASA/UMBC), C. B. Markwardt (GSFC),\nD. M. Palmer (LANL), T. Sakamoto (AGU), J. Tueller (GSFC),\nT. N. Ukwatta (MSU) (i.e. the Swift-BAT team):\n\nUsing the data set from T-288 to T+962 sec from the recent telemetry downlink,\nwe report further analysis of BAT GRB 140515A (trigger #599037)\n(D'Avanzo, et al., GCN Circ. 16267).  The BAT ground-calculated position is\nRA, Dec = 186.071, 15.099 deg which is\n  RA(J2000)  =  12h 24m 17.0s\n  Dec(J2000) = +15d 05' 55.8\"\nwith an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 99%.\n\nThe mask-weighted light curve shows a double-peaked structure. The first pulse\nstarts at ~T-22 s and peaks at ~T-18 s. The second pulse starts at ~T-10 s, peaks\nat ~T+2 s, and ends at ~T+4 s.  T90 (15-350 keV) is 23.4 +- 2.1 sec (estimated\nerror including systematics).\n\nThe time-averaged spectrum from T-22.0 to T+3.8 sec is best fit by a power law\nwith an exponential cutoff.  This fit gives a photon index 0.98 +- 0.64,\nand Epeak of 51.3 +- 14.7 keV (chi squared 54.37 for 56 d.o.f.).  For this\nmodel the total fluence in the 15-150 keV band is 5.9 +- 0.6 x 10^-7 erg/cm2\nand the 1-sec peak flux measured from T+1.51 sec in the 15-150 keV band is\n0.9 +- 0.1 ph/cm2/sec.  A fit to a simple power law gives a photon index\nof 1.85 +- 0.13 (chi squared 61.03 for 57 d.o.f.).  All the quoted errors\nare at the 90% confidence level.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/599037/BA/",
  "circularId": 16284,
  "createdOn": 1400270580000,
  "email": "amy.y.lien@nasa.gov",
  "subject": "GRB 140515A: Swift-BAT refined analysis",
  "submitter": "Amy Lien at GSFC  <amy.y.lien@nasa.gov>",
  "eventId": "GRB 140515A"
}