{
  "bibcode": "2006GCN..5575....1G",
  "body": "C. Guidorzi (Univ Bicocca&INAF-OAB), S. D. Barthelmy (GSFC),\nP. A. Evans (U Leicester), N. Gehrels (NASA/GSFC), C. Gronwall (PSU),\nJ. A. Kennea (PSU), H. A. Krimm (GSFC/USRA), V. Mangano (INAF-IASFPA),\nA. Moretti (INAF-OAB), K. L. Page (U Leicester), D. M. Palmer (LANL),\nP. Romano (INAF-OAB) and S. D. Vergani (DIAS-DCU) report on behalf of\nthe Swift Team:\n\nAt 07:48:38 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 060919 (trigger=230115).  Swift slewed immediately to the burst. \nThe BAT on-board calculated location is \nRA,Dec 276.911, -51.028 {18h 27m 39s, -51d 01' 38\"} (J2000)\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a multi-peaked \nstructure with an initial main peak of duration ~ 2 sec and lower level \nemission out to T+20 sec.  This is followed by a second peak at T+ ~300 sec\nof duration ~30 sec seen only in the 15-50 keV band.  The peak \ncount rate was ~2500 counts/sec (15-350 keV), at ~0 sec after the trigger. \n\nThe XRT began taking data at 07:50:05 UT, 87 seconds after the BAT\ntrigger. The XRT on-board centroid algorithm did not find a source in the\nimage. \nGround analysis reveals a possible faint source at the following coordinates:   \nRA(J2000): 18h 27m 42.35s\nDec(J2000): -51 00 51.2   \nwith an error of 5.1 arcseconds (90% confidence). Further analysis of \nground data is necessary to determine the properties of the possible\nsource. The current flux is 8.3x10^-9 erg cm-2 s-1. \n\nUVOT took a finding chart exposure of 100 seconds with the White\n(160-650 nm) filter starting 91 seconds after the BAT trigger. No\nafterglow candidate has been found in the initial data products. The\noverlap of the 8'x8' region for the list of sources generated\non-board and the BAT error circle is 100%. No correction has\nbeen made for the expected extinction corresponding to E(B-V) of\n0.07.",
  "circularId": 5575,
  "createdOn": 1158653939000,
  "email": "palmer@lanl.gov",
  "subject": "GRB 060919: Swift detection of a burst",
  "submitter": "David Palmer at LANL  <palmer@lanl.gov>",
  "eventId": "GRB 060919"
}