{
  "subject": "GRB 060614: Swift detection of a burst with a bright optical and X-ray counterpart",
  "eventId": "GRB 060614",
  "bibcode": "2006GCN..5252....1P",
  "createdOn": 1150290249000,
  "circularId": 5252,
  "submitter": "Ann M. Parsons at NASA/GSFC/Swift  <parsons@milkyway.gsfc.nasa.gov>",
  "email": "parsons@milkyway.gsfc.nasa.gov",
  "body": "A. M. Parsons (GSFC), J. R. Cummings (NASA/ORAU),\nN. Gehrels (NASA/GSFC), M. R. Goad (U Leicester), C. Gronwall (PSU),\nS. T. Holland (GSFC/USRA), J. A. Kennea (PSU),\nV. La Parola (INAF-IASFPA), V. Mangano (INAF-IASFPA),\nF. E. Marshall (NASA/GSFC), K. M. McLean (LANL/UTD), C. Pagani (PSU),\nD. M. Palmer (LANL), P. Romano (INAF-OAB) and\nM. Stamatikos (NASA/ORAU) report on behalf of the Swift Team:\n\nAt 12:43:48 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 060614 (trigger=214805).  Swift slewed immediately to \nthe burst.  The BAT on-board calculated location is \nRA,Dec 320.862, -53.034 {21h 23m 27s, -53d 02' 02\"} (J2000)\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a multi-peaked\nstructure with a duration of about 120 sec, with initial bright sharp\npeak and a long, also bright, somewhat softer extended peak.  The peak \ncount rate was ~10000 counts/sec (15-350 keV), at ~2 sec after the \ntrigger. \n\nThe XRT began observing the field at 12:45:19 UT, 91 seconds after the\nBAT trigger. XRT found a very bright, fading and uncatalogued X-ray source\nlocated at RA(J2000) = 21h 23m 32.3s, Dec(J2000) = -53d 01' 32.1\", with an\nestimated uncertainty of 5.0 arcseconds (90% confidence radius). \nThis location is 58 arcseconds from the BAT on-board position, within\nthe BAT error circle. The initial flux in the 0.1s image was\n6.0e-08 erg/cm2/s (0.2-10 keV). \n\nUVOT took a finding chart exposure of 100 seconds with the White\n(160-650 nm) filter starting 102 seconds after the BAT trigger. There\nis a candidate afterglow in the rapidly available 2.7'x2.7' sub-image\nat (RA,DEC) (J2000) of (320.8839,-53.0267) or\n(21h23m32.14s,-53o01'36.1\")  with a 1-sigma error radius of about 0.5\narc sec. This position is 4.3 arc sec. from the center of the XRT\nerror circle. The estimated magnitude is 18.4 with a 1-sigma error of\nabout 0.5 mag. No correction has been made for the expected extinction\ncorresponding to E(B-V) of  0.02."
}