{
  "bibcode": "2007GCN..7057....1S",
  "body": "G. Stratta (ASDC), S. D. Barthelmy (GSFC),\nW. H. Baumgartner (GSFC/UMBC), D. N. Burrows (PSU),\nG. Cusumano (INAF-IASFPA), C. Gronwall (PSU),\nS. T. Holland (CRESST/USRA/GSFC), J. A. Kennea (PSU),\nC. B. Markwardt (CRESST/GSFC/UMD), P. T. O'Brien (U Leicester),\nK. L. Page (U Leicester), D. M. Palmer (LANL), A. M. Parsons (GSFC),\nP. Romano (Univ. Bicocca & INAF-OAB), B. Sbarufatti (INAF-IASFPA),\nT. N. Ukwatta (GSFC/GWU), D. E. Vanden Berk (PSU) and\nS. D. Vergani (DIAS-DCU) report on behalf of the Swift Team:\n\nAt 14:51:39 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated possible GRB 071112 (trigger=296491).  Swift slewed immediately. \nThe BAT on-board calculated location is \nRA, Dec 297.442, -50.338 which is \n   RA(J2000)  =  19h 49m 46s\n   Dec(J2000) = -50d 20' 15\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve shows a very weak peak\nat T+0 (this was a 1-sec rate trigger) and then a 10-sec peak at ~T+40 sec. \nThe peak count rate was ~1000 counts/sec (15-350 keV), at ~T+40 sec\nafter the trigger. \n\nThe XRT began observing the field at 14:53:22 UT, 103 seconds after the\nBAT trigger. XRT centroided on-board on a CCD hot column, so the position \nsent out in our first, automated XRT Position Notice is incorrect. \nFrom preliminary ground analysis of an exposure of 1153 s of \nPhoton Counting mode data, XRT did not find any X-ray source \nwithin the BAT error circle. \n\nUVOT took a finding chart exposure of nominal 100 seconds with the White\n(160-650 nm) filter starting 112 seconds after the BAT trigger. No afterglow\ncandidate has been found in the initial data products. Image catalog data are\nnot available at this time. The 8'x8' region for the list of sources generated\non-board covers 100% of the BAT error circle. The list of sources is typically\ncomplete to about 18 mag. No correction has been made for extinction. \n\nBurst Advocate for this burst is G. Stratta (giulia.stratta AT asdc.asi.it). \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": 7057,
  "createdOn": 1194880867000,
  "email": "scott@lheamail.gsfc.nasa.gov",
  "subject": "GRB 071112: Swift detection of a possible burst",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@lheamail.gsfc.nasa.gov>",
  "eventId": "GRB 071112"
}