{
  "bibcode": "2008GCN..7604....1T",
  "body": "J. Tueller (GSFC), S. D. Barthelmy (GSFC), W. Baumgartner (GSFC/UMBC),\nA. P. Beardmore (U Leicester), J. Cummings (GSFC/UMBC), E. Fenimore (LANL),\nN. Gehrels (GSFC), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD),\nK. McLean (GSFC/UMD), D. Palmer (LANL), T. Sakamoto (GSFC/UMBC),\nG. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), T. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+454 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 080413A (trigger #309096)\n(Beardmore, et al., GCN Circ. 7594).  The BAT ground-calculated position is\nRA, Dec = 287.301, -27.677 deg, which is \n   RA(J2000)  =  19h 09m 12.1s \n   Dec(J2000) = -27d 40' 36.8\" \nwith an uncertainty of 1.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 81%.\n \nThe mask-weighted light curve shows four peaks.  The first starting at T-0.1 sec,\npeaking at T+2.0 sec.  The second peak overlaps with the first and peaks\nat ~T+7 sec.  The third and fourth peaks are well separated with peaks\nat T+16 and T+47 sec, repsectively.  The lightcurve returns to baseline\nat ~T+80 sec.  T90 (15-350 keV) is 46 +- 1 sec (estimated error\nincluding systematics).\n \nThe time-averaged spectrum from T-0.1 to T+50.3 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n1.57 +- 0.06.  The fluence in the 15-150 keV band is 3.5 +- 0.1 x 10^-6 erg/cm2.\nThe 1-sec peak photon flux measured from T+1.64 sec in the 15-150 keV band\nis 5.6 +- 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/309096/BA/",
  "circularId": 7604,
  "createdOn": 1208102296000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 080413A, Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 080413A"
}