{
  "subject": "GRB 231215A: Swift detection of a burst",
  "createdOn": 1702634159522,
  "bibcode": "2023GCN.35343....1D",
  "body": "\nP. D'Avanzo (INAF-OAB), R. Brivio (INAF-OAB), M. Ferro (INAF-OAB),\nJ.D. Gropp (PSU), K. L. Page (U Leicester), D. M. Palmer (LANL),\nT. Sakamoto (AGU), C. Salvaggio (INAF-OAB), T. Sbarrato (INAF-OAB),\nB. Sbarufatti (INAF-OAB) and M. H. Siegel (PSU) report on behalf of\nthe Neil Gehrels Swift Observatory Team:\n\nAt 09:47:25 UT, the Swift Burst Alert Telescope (BAT) triggered and\nlocated GRB 231215A (trigger=1202522).  Swift could not immediately slew\ndue to an Earth limb observing constraint. \nThe BAT on-board calculated location is \nRA, Dec 9.750, +57.642 which is \n   RA(J2000) = 00h 39m 00s\n   Dec(J2000) = +57d 38' 32\"\nwith an uncertainty of 3 arcmin (radius, 90% containment, including \nsystematic uncertainty).  The BAT light curve showed a complex\nstructure with a duration of about 30 sec.  The peak count rate\nwas ~6000 counts/sec (15-350 keV), at ~1 sec after the trigger. \n\nDue to an observing constraint, Swift will not slew until T0+42.6\nminutes. There will be no XRT or UVOT data until this time. \n\nBurst Advocate for this burst is P. D'Avanzo (paolo.davanzo AT 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/)\n\n",
  "submittedHow": "email",
  "circularId": 35343,
  "submitter": "David Palmer at LANL <palmer@lanl.gov>",
  "eventId": "GRB 231215A"
}