{
  "bibcode": "2006GCN..5043....1P",
  "body": "D. Palmer (LANL), L. Barbier (GSFC), S. Barthelmy (GSFC),\nJ. Cummings (GSFC/ORAU), E. Fenimore (LANL), N. Gehrels (GSFC),\nD. Hullinger (BYU-Idaho), H. Krimm (GSFC/USRA), M. Koss (UMD),\nV La Parola (INAF-IASFPA), C. Markwardt (GSFC/UMD), A. Parsons (GSFC),\nT. Sakamoto (GSFC/ORAU), G. Sato (ISAS), M. Stamatikos (GSFC/ORAU),\nJ. Tueller (GSFC)\non behalf of the Swift-BAT team:\n\nUsing the data set from T-239 to T+963 sec from recent telemetry downlinks,\nwe report further analysis of BAT GRB 060501 (trigger #208050)  \n(La Parola, et al., GCN 5040).  The BAT ground-calculated position is \nRA,Dec = 328.383,+43.993 deg {21h 53m 32.0s,+43d 59' 34.4\"} (J2000)\n+- 1.3 arcmin, (radius, sys+stat, 90% containment).  \nThe partial coding was 36%.\n\nThe mask-weighted lightcurve shows a single peak starting at T-4 sec and\nending at T+14 sec.  T90 (15-350 keV) is 26 +- 2 sec (estimated error\nincluding systematics).  Because the burst location was in an Earth observing\nconstraint, the spacecraft then executed a slew to a preplanned target and\nthe new burst location went out of the BAT FOV at T+148 sec.\n\nThe time-averaged spectrum from T-1.3 to T+26.1 is best fit by \na simple power-law model.  The power law index of the time-averaged \nspectrum is 1.44 +- 0.15.  The fluence in the 15-150 keV band is \n1.2 +- 0.1 x 10^-06 erg/cm2.  The 1-sec peak photon flux measured \nfrom T+0.36 sec in the 15-150 keV band is 1.9 +- 0.3 ph/cm2/sec.  \nAll the quoted errors are at the 90% confidence level.",
  "circularId": 5043,
  "createdOn": 1146498991000,
  "email": "Scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 060501:  Refined analysis of the Swift-BAT burst",
  "submitter": "Scott Barthelmy at NASA/GSFC  <Scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 060501"
}