{
  "bibcode": "2006GCN..5699....1S",
  "body": "P. Schady (MSSL-UCL), D. N. Burrows (PSU), J. R. Cummings (NASA/UMBC),\nN. Gehrels (NASA/GSFC), C. Guidorzi (Univ Bicocca&INAF-OAB),\nS. T. Holland (GSFC/USRA), S. D. Hunsberger (PSU),\nV. Mangano (INAF-IASFPA), D. C. Morris (PSU),\nP. T. O'Brien (U Leicester), C. Pagani (PSU),\nK. L. Page (U Leicester), D. M. Palmer (LANL),\nS. B. Pandey (UCL-MSSL), J. L. Racusin (PSU),\nP. Romano (Univ. Bicocca & INAF-OAB), G. Sato (GSFC/ISAS),\nM. Stamatikos (NASA/ORAU), R. L. C. Starling (U Leicester),\nD. E. Vanden Berk (PSU) and H. Ziaeepour (UCL-MSSL) report on behalf\nof the Swift Team:\n\nAt 16:45:50 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 061006 (trigger=232585).  Swift slewed immediately to the burst. \nThe BAT on-board calculated location is \nRA,Dec 111.090, -79.202 {07h 24m 22s, -79d 12' 05\"} (J2000)\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a large peak about \n5 seconds long during the pre-planned slew immediately preceding the start \nof the 64-second image in which the burst was found.  The peak count rate \nwas ~5500 counts/sec (15-350 keV), at ~24 sec before the trigger. \n\nThe XRT began taking data at 16:48:13 UT, 143 seconds after the BAT\ntrigger. The XRT on-board centroid algorithm did not find a source in\nthe image, but ground analysis of the data found a faint source at a\nposition of RA, Dec = 07h 24m 06.47s, -79d 11' 54.5\" (J2000),  with\nan estimated error radius of 8 arcsec (90% containment, including\nboresight uncertainties). This is 44 arcsec from the BAT position. \n\nUVOT took a finding chart exposure of 400 seconds with the V filter\nstarting 140 seconds after the BAT trigger. The 2.7'x2.7' sub-image\ncovers 25% of the BAT error circle. The typical 3-sigma upper limit\nhas been about 18.5 mag. The 8'x8' region for the list of sources\ngenerated on-board covers 100% of the BAT error circle. The list of\nsources is typically complete to about 18.0 mag. No correction has\nbeen made for the expected extinction of about 1.1 magnitudes.",
  "circularId": 5699,
  "createdOn": 1160154818000,
  "email": "palmer@lanl.gov",
  "subject": "GRB 061006: Swift detection of a burst",
  "submitter": "David Palmer at LANL  <palmer@lanl.gov>",
  "eventId": "GRB 061006"
}