{
  "bibcode": "2006GCN..5053....1P",
  "body": "A. Parsons (GSFC),  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), \nC. Markwardt (GSFC/UMD), D. Palmer (LANL), T. Sakamoto (GSFC/ORAU), \nG. Sato (ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), \non behalf of the Swift-BAT team:\n\nUsing the data set from T-119 to T+229 sec from the recent telemetry\ndownlink, we report further analysis of BAT GRB 060502 (trigger #208169)  \n(La Parola, et al., GCN 5047).  The BAT ground-calculated position is \n(RA,Dec) = 240.941, 66.600 deg {16h 3m 45.8s, 66d 35' 59.5\"} (J2000)\n+- 1.0 arcmin, (radius, sys+stat, 90% containment).  The partial coding was 49%.\n \nThe mask-weighted lightcurve shows a main peak starting at T-5 sec and\nending at T+30 sec.  The second weak peak follows in a duration of ~15 sec.  \nT90 (15-350 keV) is 33 +- 5 sec (estimated error including systematics).\n \nThe time-averaged spectrum from T-5.8 to T+42.0 is best fit by \na simple power-law model.  The power law index of the time-averaged spectrum \nis 1.43 +- 0.08.  The fluence in the 15-150 keV band is 2.2 +- 0.1 x 10^-06 erg/cm2.\nThe 1-sec peak photon flux measured from T-0.10 sec in the 15-150 keV\nband is 1.7 +- 0.2 ph/cm2/sec.  \n\nEiso is 5.8e+49 ergs (16.5 - 164.9 keV in the GRB rest frame) and \n1.5e+52 ergs (37.7 - 376.5 keV in the GRB rest frame) using \nz = 0.099 (Chen et al. GCN 5051) and z = 1.51 (Cucchiara et al. GCN 5052) \nrespectively.  \n\nAll the quoted errors are at the 90% confidence level.",
  "circularId": 5053,
  "createdOn": 1146577800000,
  "email": "takanori@milkyway.gsfc.nasa.gov",
  "subject": "GRB 060502: Swift-BAT refined analysis",
  "submitter": "Takanori Sakamoto at NASA/GSFC  <takanori@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 060502"
}