{
  "bibcode": "2006GCN..5611....1S",
  "body": "T. Sakamoto (GSFC/ORAU), L. Barbier (GSFC), S. D. Barthelmy (GSFC),\nJ. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC),\nD. Hullinger (BYU-Idaho), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD),\nD. Palmer (LANL), A. Parsons (GSFC), G. Sato (GSFC/ISAS),\nM. Stamatikos (GSFC/ORAU), J. Tueller (GSFC)\non behalf of the Swift-BAT team:\n\nUsing the data set from T-239 to T+963 sec from the recent telemetry\ndownlink, we report further analysis of BAT GRB 060923\n(trigger #230711)  (Stamatikos, et al., GCN Circ. 5591;\nBarthelmy, et al., GCN Circ 5600).  The BAT ground-calculated position\nis RA,Dec = 346.122, 3.943 deg {23h 4m 29.3s, 3d 56' 33.8\"} (J2000)\n+- 2.1 arcmin, (radius, sys+stat, 90% containment).  The partial \ncoding was 17%.\n\nThe mask-weighted lightcurve has a single long emision from T+0 to T+110 sec.\nT90 (15-350 keV) is 76 +- 2 sec (estimated error including systematics). \nThe long duration and smooth profile of the lightcurve suggest, \nbut do not prove, that this is a high redshift burst.  \n\nThe time-averaged spectrum from T+6.8 to T+90.7 is best fit by\na simple power-law model.  The power law index of the time-averaged\nspectrum is 2.27 +- 0.24.  The fluence in the 15-150 keV band is \n1.6 +- 0.2 x 10^-06 erg/cm2.  The 1-sec peak photon flux measured from\nT+27.54 sec in the 15-150 keV band is 1.0 +- 0.4 ph/cm2/sec. \nAll the quoted errors are at the 90% confidence level.",
  "circularId": 5611,
  "createdOn": 1159213861000,
  "email": "takanori@milkyway.gsfc.nasa.gov",
  "subject": "GRB 060923C, Swift-BAT refined analysis",
  "submitter": "Takanori Sakamoto at NASA/GSFC  <takanori@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 060923C"
}