{
  "bibcode": "2005GCN..4135....1B",
  "body": "S. Barthelmy (GSFC), L. Barbier (GSFC), P. Boyd (GSFC-UMBC),\nJ. Cummings (GSFC/NRC), E. Fenimore (LANL), N. Gehrels (GSFC),\nD. Hullinger (GSFC/UMD), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), \nD. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/NRC),\nG. Sato (ISAS), J. Tueller (GSFC), W. Voges (MPE) \non behalf of the Swift-BAT team:\n\nUsing the full data set from the recent telemetry downlink, we report\nfurther analysis of Swift-BAT GRB 051021B (trigger #160672)\n(Retter, et al., GCN 4126).  The ground-analysis position is\nRA,Dec 126.059,-45.537 {8h 24m 14.2s,-45d 32' 13.0\"} (J2000)\nwith an uncertainty of 1.3 arcmin (radius, 90%, stat+sys).\nT90 is 47 +- 3 sec.  The partial coding fraction is 88 %.\nThe lightcurve has single FRED peak starting at T-6 sec (FWHM of ~12 sec)\nwith the decay extending out to greater than T+20 sec.  There is\na second, smaller peak at ~T+20.  Fitting a simple power law over\nthe full interval from T-5.5 to T+51.5 sec, the photon index is\n1.52 +/- 0.14 with a fluence of 9.1 +/- 0.8 X 10^-7 erg/cm^2.\nThe peak flux in a 1-sec wide window starting at T-2.5 sec\nis 0.63 +/- 0.13 ph/cm^2/sec.  All values are in the 15-150 keV band\nat the 90% confidence level.",
  "circularId": 4135,
  "createdOn": 1129996376000,
  "email": "Scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 051021B:  Refined analysis of the Swift-BAT burst",
  "submitter": "Scott Barthelmy at NASA/GSFC  <Scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 051021B"
}