{
  "bibcode": "2006GCN..5676....1C",
  "body": "J. K. Cannizzo (NASA/UMBC), S. D. Barthelmy (GSFC),\nA. P. Beardmore (U Leicester), J. R. Cummings (NASA/UMBC),\nS. D. Hunsberger (PSU), F. E. Marshall (NASA/GSFC),\nK. M. McLean (LANL/UTD), K. L. Page (U Leicester),\nD. M. Palmer (LANL) and M. Stamatikos (NASA/ORAU)\nreport on behalf of the Swift Team:\n\nThis is the corrected circular (no extra UVOT paragraph plus a slight\nchange to the 3-sigma upper limit: 18.7).\n\nAt 01:03:29 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 061002 (trigger=231974).  Swift slewed immediately to the burst. \nThe BAT on-board calculated location is \nRA,Dec 220.346, +48.736 {14h 41m 23s, +48d 44' 11\"} (J2000)\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve shows a weak peak with a\nduration of about 20 sec.  The peak count rate\nwas ~500 counts/sec (15-350 keV), at ~5 sec after the trigger. \n\nThe XRT began taking data at 01:05:41 UT, 132 seconds after the BAT\ntrigger.  The XRT on-board centroid algorithm did not find a source in\nthe image, but ground analysis reveals a faint, probably fading source\nat RA, Dec = 14h 41m 23.62s, +48d 44' 23.4\" (J2000) with an estimated\nuncertainty of 15 arcsec radius (90% containment).  This is 14.9\narcsec from the BAT position. \n\nUVOT took a finding chart exposure of 400 seconds with the V filter\nstarting 128 seconds after the BAT trigger.  No afterglow candidate\nhas been found in the initial data products.  The 2.7'x2.7' sub-image\ncovers 25% of the BAT error circle and 100% of the XRT error circle. \nThe 3-sigma upper limit is about 18.7 mag.  The 8'x8' region\nfor the list of sources generated on-board covers 100% of the BAT\nerror circle.  No correction has been made for the expected extinction\nof about 0.1 magnitudes.",
  "circularId": 5676,
  "createdOn": 1159753306000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 061002: Swift detection of a burst: CORRECTED CONTENT",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 061002"
}