{
  "bibcode": "2008GCN..8351....1P",
  "body": "GRB 081008, Swift-BAT refined analysis\n\nD. M. Palmer (LANL), S. D. Barthelmy (GSFC), W. H. Baumgartner\n(GSFC/UMBC), J. R. Cummings (GSFC/UMBC), E. E. Fenimore (LANL),\nN. Gehrels (GSFC), H. A. Krimm (GSFC/USRA), C. B. Markwardt\n(GSFC/UMD), K. McLean (GSFC/UMD), A. M. Parsons (GSFC), J. L. Racusin\n(PSU), T. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos\n(GSFC/ORAU), J. Tueller (GSFC), T. N. Ukwatta (GWU); (i.e. the\nSwift-BAT team):\n\nUsing the data set from T-240 to T+963 sec from the recent telemetry\ndownlink, we report further analysis of BAT GRB 081008 (trigger\n#331093) (Racusin et al., GCN Circ. 8344).  The BAT ground-calculated\nposition is RA, Dec = 279.968, -57.433 deg which is\n    RA(J2000)  =  18h 39m 52.4s\n    Dec(J2000) = -57d 25' 58.8\"\nwith an uncertainty of 1.1 arcmin, (radius, sys+stat, 90%\ncontainment).  The partial coding was 81%.\n\nThe mask-weighted lightcurve shows two strong peaks at T+0 and T+110s.\nT90 (15-350 keV) is 185.5 +- 40.3 sec (estimated error including\nsystematics).\n\nThe time-averaged spectrum from T-65 to T+201 sec is best fit by a\nsimple power-law model.  A cutoff-power law model is also an\nacceptable fit with an E_peak of 88 keV.  The power law index of the\ntime-averaged spectrum is 1.69 +- 0.07.  The fluence in the 15-150 keV\nband is 4.3 +- 0.2 x 10^-06 erg/cm2.  The 1-sec peak photon flux\nmeasured from T+7.52 sec in the 15-150 keV band is 1.3 +- 0.1\nph/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/331093/BA/",
  "circularId": 8351,
  "createdOn": 1223581857000,
  "email": "wayne@milkyway.gsfc.nasa.gov",
  "subject": "GRB 081008, Swift-BAT refined analysis",
  "submitter": "Wayne Baumgartner at GSFC  <wayne@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 081008"
}