{
  "bibcode": "2014GCN.16531....1M",
  "body": "F. E. Marshall (NASA/GSFC), S. D. Barthelmy (GSFC),\nS. B. Cenko (GSFC), J. R. Cummings (NASA/UMBC), J. A. Kennea (PSU),\nK. L. Page (U Leicester) and D. M. Palmer (LANL) report on behalf of\nthe Swift Team:\n\nAt 19:33:33 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 140706A (trigger=603587).  Swift slewed immediately to the burst. \nThe BAT on-board calculated location is \nRA, Dec 49.306, -38.059 which is \n   RA(J2000) = 03h 17m 13s\n   Dec(J2000) = -38d 03' 33\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve shows two main peaks\nwith a total duration of about 55 sec.  The peak count rate\nwas ~1700 counts/sec (15-350 keV), at ~0 sec after the trigger. \n\nThe XRT began observing the field at 19:34:46.0 UT, 72.8 seconds after\nthe BAT trigger. Using promptly downlinked data we find a bright,\nuncatalogued X-ray source located at RA, Dec 49.29517, -38.05083 which\nis equivalent to:\n   RA(J2000)  = 03h 17m 10.84s\n   Dec(J2000) = -38d 03' 03.0\"\nwith an uncertainty of 4.1 arcseconds (radius, 90% containment). This\nlocation is 42 arcseconds from the BAT onboard position, within the BAT\nerror circle. This position may be improved as more data are received;\nthe latest position is available at http://www.swift.ac.uk/sper. No\nspectrum from the promptly downlinked event data is yet available to\ndetermine the column density. \n\nThe initial flux in the 2.5 s image was 5.09e-10 erg cm^-2 s^-1 (0.2-10\nkeV). \n\nUVOT took a finding chart exposure of 150 seconds with the White filter\nstarting 82 seconds after the BAT trigger. There is a candidate afterglow in\nthe list of sources generated on-board at\n  RA(J2000)  =\t03:17:10.40 =  49.29332\n  DEC(J2000) = -38:03:07.4  = -38.05205\nwith a 90%-confidence error radius of about 1.10 arc sec. This position is 4.5\narc sec. from the center of the XRT error circle. The estimated magnitude is\n19.05. No correction has been made for the expected extinction corresponding to\nE(B-V) of 0.02. \n\nBurst Advocate for this burst is F. E. Marshall (marshall AT milkyway.gsfc.nasa.gov). \nPlease contact the BA by email if you require additional information\nregarding Swift followup of this burst. In extremely urgent cases, after\ntrying the Burst Advocate, you can contact the Swift PI by phone (see\nSwift TOO web site for information: http://www.swift.psu.edu/too.html.)",
  "circularId": 16531,
  "createdOn": 1404675754000,
  "email": "scott@milkyway.gsfc.nasa.gov",
  "subject": "GRB 140706A: Swift detection of a burst with an optical counterpart",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 140706A"
}