{
  "bibcode": "2011GCN.11944....1S",
  "body": "B. Sbarufatti (INAF-OAB/IASFPA), S. D. Barthelmy (GSFC),\nW. H. Baumgartner (GSFC/UMBC), A. P. Beardmore (U Leicester),\nD. N. Burrows (PSU), M. M. Chester (PSU), V. D'Elia (ASDC),\nS. T. Holland (CRESST/USRA/GSFC), E. A. Hoversten (PSU),\nJ. A. Kennea (PSU), V. Mangano (INAF-IASFPA), A. Melandri (INAF-OAB),\nD. M. Palmer (LANL), M. Stamatikos (OSU/NASA/GSFC) and\nE. Troja (NASA/GSFC/ORAU) report on behalf of the Swift Team:\n\nAt 22:42:11 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 110420B (trigger=451794).  Swift did not immediately slew\nbecause of an observing constraint. \nThe BAT on-board calculated location is \nRA, Dec 320.049, -41.264, which is \n   RA(J2000)  =  21h 20m 12s\n   Dec(J2000) = -41d 15' 51\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve shows a single spike\nwith a duration of about 64 milli-sec.  The peak count rate\nwas ~6000 counts/sec (15-350 keV), at ~0 sec after the trigger. \n\nDue to an observing constraint, Swift will not slew until \nT0+40.4 minutes. There will be no XRT or UVOT data until\nthis time. \n\nBurst Advocate for this burst is B. Sbarufatti (boris.sbarufatti AT brera.inaf.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": 11944,
  "createdOn": 1303339887000,
  "email": "scott@milkyway.gsfc.nasa.gov",
  "subject": "GRB 110420B: Swift detection of a short hard burst",
  "submitter": "Scott Barthelmy at NASA/GSFC  <scott@milkyway.gsfc.nasa.gov>",
  "eventId": "GRB 110420B"
}