{
  "bibcode": "2016GCN.20283....1D",
  "body": "A. D'Ai (INAF-IASFPA), V. D'Elia (ASDC),\nH. A. Krimm (CRESST/NSF/USRA), D. M. Palmer (LANL) and\nM. H. Siegel (PSU) report on behalf of the Swift Team:\n\nAt 03:47:36 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 161218A (trigger=727288).  Swift could not slew to the burst\ndo to an observing constraint.  The BAT on-board calculated location is \nRA, Dec 245.257, -4.114 which is \n   RA(J2000) = 16h 21m 02s\n   Dec(J2000) = -04d 06' 48\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a single complex\nstructure with a duration of about 10 sec.  The peak count rate\nwas ~20000 counts/sec (15-350 keV), at ~1 sec after the trigger. \n\nDue to a Sun observing constraint, Swift cannot slew to the BAT\nposition until 15:54 UT on 2017 January 08. There will thus be no XRT\nor UVOT data for this trigger before this time. \n\nBurst Advocate for this burst is A. D'Ai (antonino.dai AT ifc.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": 20283,
  "createdOn": 1482033696000,
  "email": "palmer@lanl.gov",
  "subject": "GRB 161218A: Swift detection of a burst",
  "submitter": "David Palmer at LANL  <palmer@lanl.gov>",
  "eventId": "GRB 161218A"
}