{
  "circularId": 43190,
  "eventId": "GRB 251222A",
  "submitter": "Jochen Greiner at MPE <jcgrog@mpe.mpg.de>",
  "createdOn": 1766427882022,
  "subject": "GRB 251222A: BALROG localization (Fermi Trigger  / GRB 251222712)",
  "body": "T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:\n\nThe public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger\n at 17:05:51 on 22 Dec. 2025 were automatically fitted for spectrum\nand sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427;\nBerlato et al. 2019, ApJ 873, 60).\n\nThe best-fit position is:\nRA(2000.0) = 76.6 deg\nDecl.(2000.0) = -7.7 deg\nThe 1 sigma statistical error radius is 2.5 deg.\nWe estimate an additional systematic error of 1 deg.\n\nFurther details are available at:\nhttps://grb.mpe.mpg.de/grb/GRB251222712/\n\nThe Healpix map can be downloaded from:\nhttps://grb.mpe.mpg.de/grb/GRB251222712/healpix\n\nThe location parameters are available as JSON at:\nhttps://grb.mpe.mpg.de/grb/GRB251222712/json\n\n                        \n",
  "bibcode": "2025GCN.43190....1P",
  "submittedHow": "email"
}