{
  "bibcode": "2006GCN..5974....1B",
  "body": "L. Barbier (GSFC), S. D. Barthelmy (GSFC), J. Cummings (GSFC/UMBC),\nE. Fenimore (LANL), N. Gehrels (GSFC), D. Hullinger (BYU-Idaho),\nH. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), D. Palmer (LANL),\nA. Parsons (GSFC), J. L. Racusin (PSU), T. Sakamoto (GSFC/ORAU),\nG. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC)\non behalf of the Swift-BAT team:\n \nUsing the data set from T-239.0 to T+903.1 sec from the recent telemetry\ndownlink, we report further analysis of BAT GRB 061222 (trigger #252593)  \n(Racusin, et al., GCN Circ. 5957).  The BAT ground-calculated position\nis RA, Dec = 105.352, -25.865 deg which is \n   RA(J2000) = 7h 1m 24.6s \n   Dec(J2000) = -25d 51' 55.6\" \nwith an uncertainty of 1.2 arcmin, (radius, sys+stat, 90% containment).  \nThe partial coding was 16%.\n \nThe burst had a single gradual peak with several sub peaks.\nT90 (15-350 keV) is 40 +- 5 sec (estimated error including systematics).\nAt this time, there is a gap in the downlinked data from T+480 sec to \nT+660 and T+720 to T+840 sec.  A further Circular will be issued if\nburst activity is found in these intervals.\n \nThe time-averaged spectrum from T+35.1 to T+84.3 is best fit by \na simple power-law model.  The power law index of the time-averaged \nspectrum is 1.98 +- 0.13.  The fluence in the 15-150 keV band is \n2.2 +- 0.2 x 10^-06 erg/cm2.  The 1-sec peak photon flux measured from \nT+59.16 sec in the 15-150 keV band is 1.5 +- 0.4 ph/cm2/sec.  All the \nquoted errors are at the 90% confidence level.",
  "circularId": 5974,
  "createdOn": 1166819904000,
  "email": "jayc@milkyway.gsfc.nasa.gov",
  "subject": "GRB 061222B, Swift-BAT refined analysis",
  "submitter": "Jay R. Cummings at NASA/GSFC/Swift  <jayc@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 061222B"
}