{
  "eventId": "GRB 260421B",
  "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\n798437606 at 04:13:21 on 21 April 2026 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) = 190.5 deg\nDecl.(2000.0) = -16.5 deg\nThe 1 sigma statistical error radius is 2.2 deg.\nWe estimate an additional systematic error of 1 deg.\n\nFurther details are available at:\nhttps://grb.mpe.mpg.de/grb/GRB260421176/\n\nThe Healpix map can be downloaded from:\nhttps://grb.mpe.mpg.de/grb/GRB260421176/healpix\n\nThe location parameters are available as JSON at:\nhttps://grb.mpe.mpg.de/grb/GRB260421176/json\n\n                        \n",
  "createdOn": 1776747264252,
  "circularId": 44361,
  "submittedHow": "email",
  "submitter": "Jochen Greiner at MPE <jcgrog@mpe.mpg.de>",
  "subject": "GRB 260421B: BALROG localization (Fermi Trigger 798437606 / GRB 260421176)"
}