{
  "bibcode": "2007GCN..6362....1C",
  "body": "J. Cannizzo (GSFC/UMBC), L. Barbier (GSFC), S. D. Barthelmy (GSFC),\n J. Cummings (GSFC/UMBC), E. Fenimore (LANL), N. Gehrels (GSFC),\n H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD), D. Palmer (LANL),\n A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), G. Sato (GSFC/ISAS),\n M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC)\n on behalf of the Swift-BAT team:\n  \n Using the data set from T-239.0 to T+963.1 sec from the recent telemetry\n downlink, we report further analysis of BAT GRB 070429\n (trigger #277571)  (Barthelmy, et al., GCN Circ. 6355).  The BAT\n ground-calculated position is RA, Dec = 297.695, -32.420 deg which is\n    RA(J2000) = 19h 50m 46.9s\n    Dec(J2000) = -32d 25' 12.1\"\n with an uncertainty of 2.5 arcmin, (radius, sys+stat, 90% containment). \n The partial coding was 68%.\n  \n The masked weighted light curve shows a single somewhat broad peak,\n extending out to T+50 sec, followed by several smaller peaks.\n T90 (15-350 keV) is 163 +- 5sec (estimated error including systematics).\n  \n The time-averaged spectrum from T-12.4 to T+178.0 is best fit by\n a simple power-law model.  The power law index of the time-averaged\n spectrum is 2.11 +- 0.27. The fluence in the 15-150 keV band is\n 9.2 +- 1.4 x 10-07 erg/cm2. The 1-sec peak photon flux measured\n from T+3.99 sec in the 15-150 keV band is 0.4 +- 0.2 ph/cm2/sec. \n All the quoted errors are at the 90% confidence level.",
  "circularId": 6362,
  "createdOn": 1177855462000,
  "email": "lmb@cosmicra.gsfc.nasa.gov",
  "subject": "GRB 070429A, Swift-BAT refined analysis",
  "submitter": "Louis M Barbier at NASA/GSFC/Swift  <lmb@cosmicra.gsfc.nasa.gov>",
  "eventId": "GRB 070429A"
}