{
  "bibcode": "2009GCN..8886....1C",
  "body": "GRB 090205: Swift-BAT refined analysis\n \nJ. R. Cummings (GSFC/UMBC), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),\nE. E. Fenimore (LANL), N. Gehrels (GSFC), H. A. Krimm (GSFC/USRA),\nC. B. Markwardt (GSFC/UMD), D. M. Palmer (LANL), M. Perri (ASDC),\nT. Sakamoto (GSFC/UMBC), G. Sato (ISAS), M. Stamatikos (GSFC/ORAU),\nJ. Tueller (GSFC), T. N. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n \nUsing the data set from T-239 to T+455 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 090205 (trigger #342121)\n(Perri, et al., GCN Circ. 8884).  The BAT ground-calculated position is\nRA, Dec = 220.917, -27.848 deg which is \n   RA(J2000)  =  14h 43m 40.0s \n   Dec(J2000) = -27d 50' 51.4\" \nwith an uncertainty of 2.0 arcmin, (radius, sys+stat, 90% containment).\nThe partial coding was 100%.\n \nThe mask-weighted light curve shows a single peak starting at ~T-5 sec,\npeaking at ~T+3 sec, and returning to background at ~T+100 sec.\nT90 (15-350 keV) is 8.8 +- 1.8 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-2.9 to T+6.6 sec is best fit by a simple\npower-law model.  The power law index of the time-averaged spectrum is\n2.15 +- 0.23.  The fluence in the 15-150 keV band is 1.9 +- 0.3 x 10^-7 erg/cm2.\nThe 1-sec peak photon flux measured from T+4.09 sec in the 15-150 keV band\nis 0.5 +- 0.1 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/342121/BA/",
  "circularId": 8886,
  "createdOn": 1233891035000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 090205: Swift-BAT refined analysis",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 090205"
}