{
  "eventId": "GRB 251031A",
  "createdOn": 1761896618849,
  "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\n783588065 at 07:21:00 on 31 Oct. 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) = 188.3 deg\nDecl.(2000.0) = -17.9 deg\nThe 1 sigma statistical error radius is 2.8 deg.\nWe estimate an additional systematic error of 1 deg.\n\nFurther details are available at:\nhttps://grb.mpe.mpg.de/grb/GRB251031306/\n\nThe Healpix map can be downloaded from:\nhttps://grb.mpe.mpg.de/grb/GRB251031306/healpix\n\nThe location parameters are available as JSON at:\nhttps://grb.mpe.mpg.de/grb/GRB251031306/json\n\n                        \n",
  "bibcode": "2025GCN.42526....1P",
  "submitter": "Jochen Greiner at MPE <jcgrog@mpe.mpg.de>",
  "circularId": 42526,
  "submittedHow": "email",
  "subject": "GRB 251031A: BALROG localization (Fermi Trigger 783588065 / GRB 251031306)"
}