{
  "bibcode": "2009GCN..9716....1K",
  "body": "H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC),\nW. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC),\nE. E. Fenimore (LANL), N. Gehrels (GSFC),\nC. B. Markwardt (GSFC/UMD), K. L. Page (U Leicester),\nD. M. Palmer (LANL), A. M. Parsons (GSFC),\nT. Sakamoto (GSFC/UMBC), G. Sato (ISAS),\nM. Stamatikos (GSFC/ORAU), J. Tueller (GSFC),\nT. N. Ukwatta (GWU)\n(i.e. the Swift-BAT team):\n\nUsing the data set from T-240 to T+962 sec from the\nrecent telemetry downlink, we report further analysis\nof BAT GRB 090726 (trigger #358422) (Page, et al.,\nGCN Circ. 9706).  The BAT ground-calculated position is\nRA, Dec = 248.681, 72.866 deg which is\n   RA(J2000)  =  16h 34m 43.5s\n   Dec(J2000) = +72d 51' 56.5\"\nwith an uncertainty of 1.7 arcmin, (radius, sys+stat,\n90% containment). The partial coding was 85%.\n\nThe mask-weighted light curve shows a weak single peak\nstarting at ~T-40 sec, peaking at ~T+5 aec,\nand ending at ~T+70 sec. T90 (15-350 keV) is\n67.0 +/- 15.2 sec (estimated error including systematics).\n\nThe time-averaged spectrum from T-34.7 to T+47.3 sec is\nbest fit by a simple power-law model.  The power law\nindex of the time-averaged spectrum is 2.25 +/- 0.19.\nThe fluence in the 15-150 keV band is\n8.6 +/- 1.0 x 10^-07 erg/cm2. The 1-sec peak photon\nflux measured from T+7.30 sec in the 15-150 keV band\nis 0.7 +- 0.2 ph/cm2/sec.  All the quoted errors are\nat the 90% confidence level.\n\nThe results of the batgrbproduct analysis are available at\nhttp://gcn.gsfc.nasa.gov/notices_s/358422/BA/",
  "circularId": 9716,
  "createdOn": 1248710237000,
  "email": "tilan.ukwatta@gmail.com",
  "subject": "GRB 090726, Swift-BAT refined analysis",
  "submitter": "Tilan Ukwatta at GSFC/GWU  <tilan.ukwatta@gmail.com>",
  "eventId": "GRB 090726"
}