{
  "bibcode": "2018GCN.22780....1G",
  "body": "J.D. Gropp (PSU), S. D. Barthelmy (GSFC), D. N. Burrows (PSU),\nJ. A. Kennea (PSU), A. Y. Lien (GSFC/UMBC),\nF. E. Marshall (NASA/GSFC), D. M. Palmer (LANL), M. H. Siegel (PSU),\nA. Tohuvavohu (PSU) and T. N. Ukwatta (LANL) report on behalf of the\nNeil Gehrels Swift Observatory Team:\n\nAt 19:16:13 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 180614A (trigger=841548).  Swift slewed immediately to the burst. \nThe BAT on-board calculated location is \nRA, Dec 3.157, +46.943, which is \n   RA(J2000)  =  00h 12m 38s\n   Dec(J2000) = +46d 56' 34\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve shows a couple peaks\nwith a duration of about 25 sec.  The peak count rate\nwas ~1500 counts/sec (15-350 keV), at ~2 sec after the trigger. \n\nThe XRT began observing the field at 19:17:19.1 UT, 65.6 seconds after\nthe BAT trigger. Using promptly downlinked data we find an uncatalogued\nX-ray source located at RA, Dec 3.07620, 46.95342 which is equivalent\nto:\n   RA(J2000)  = 00h 12m 18.29s\n   Dec(J2000) = +46d 57' 12.3\"\nwith an uncertainty of 4.0 arcseconds (radius, 90% containment). This\nlocation is 202 arcseconds from the BAT onboard position. This position\nmay be improved as more data are received; the latest position is\navailable at http://www.swift.ac.uk/sper.  We cannot determine whether\nthe source is fading at the present time. This position is more than\n2-sigma away from the BAT position, and so possibly unrelated to the\ntrigger. \n\nA power-law fit to a spectrum formed from promptly downlinked event\ndata gives a column density consistent with the Galactic value of 1.14\nx 10^21 cm^-2 (Willingale et al. 2013). \n\nUVOT took a finding chart exposure of 150 seconds with the White\nfilter  starting 68 seconds after the BAT trigger. No credible\nafterglow candidate has  been found in the initial data products. The\n2.7'x2.7' image covers none of the XRT  error circle. Data from the list of\nsources generated  on-board are not available at this time. \n\nBurst Advocate for this burst is J.D. Gropp (jdg44 AT psu.edu). \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": 22780,
  "createdOn": 1529004487000,
  "email": "scott@milkyway.gsfc.nasa.gov",
  "subject": "GRB 180614A: Swift detection of a burst",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 180614A"
}