GRB 240821A: BALROG localization (Fermi Trigger 745958167 / GRB 240821775)

The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 745958167 at 18:36:02 on 21 Aug. 2024 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position is: RA(2000.0) = 352.9 deg Decl.(2000.0) = -11.2 deg The 1 sigma statistical error radius is 3.0 deg. We estimate an additional systematic error of 1 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB240821775/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB240821775/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB240821775/json