{
  "bibcode": "2005GCN..3637....1C",
  "body": "J. Cummings (GSFC/NRC), L. Barbier (GSFC), S. Barthelmy (GSFC),\nE. Fenimore (LANL), N. Gehrels (GSFC), K. Gendreau (GSFC),\nD. Hullinger (UMD), H. Krimm (GSFC/USRA), C. Markwardt (GSFC/UMD),\nP. Meszaros (PSU), T. Mitani (ISAS), D. Palmer (LANL), A. Parsons (GSFC), \nT. Sakamoto (GSFC/NRC), G. Sato (ISAS), M. Suzuki (Saitama), J. Tueller (GSFC),\non behalf of the Swift/BAT team:\n\nAt 10:30:52.21 UT Swift-BAT detected GRB 050717 (trigger=146372)\n(GCN Circ 3633, C. Hurkett et al.).  The refined BAT ground position\nis (RA,Dec) = 214.352, -50.541, [deg; J2000] +- 3 arcmin, (90%\ncontainment).  The partial coding was 55%.  \n\nThe masked-weighted light curve shows a large peak (starting at T+2.4 sec\nand reaching a maximum at T+2.8 sec), followed by an exponential decay\nwith several smaller peaks.  There are two much smaller precursor peaks\nat T+0 and T+0.7 sec, each with a 15-350 keV fluence of ~7 x 10^-8 erg/cm2.\nBAT triggered on the first these two precursor peaks.  T90 (15-350 keV) is\n(86 +- 2) sec (estimated error including systematics).  \n\nThe power-law photon index of the time-averaged spectrum is 1.42 +- 0.05.  \nThe fluence in the 15-350 keV band is (1.27 +- 0.05) x 10^-5 erg/cm2.  \nThe 1-sec peak photon flux measured from T+2.8 sec in the 15-350 \nband is (8.5 +- 0.4) ph/cm2/sec.  All the quoted errors are at the 90% \nconfidence level.",
  "circularId": 3637,
  "createdOn": 1121621959000,
  "email": "jayc@milkyway.gsfc.nasa.gov",
  "subject": "GRB 050717: Swift-BAT refined analysis",
  "submitter": "Jay R. Cummings at NASA/GSFC/Swift  <jayc@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 050717"
}