TITLE: GCN CIRCULAR NUMBER: 32519 SUBJECT: GRB 220905A: BALROG localization (Fermi Trigger 684070128 / GRB 220905478) DATE: 22/09/05 12:16:19 GMT FROM: Jochen Greiner at MPE,Garching B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 684070128 at 11:28:43 on 05 Sept. 2022 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 (1 sigma statistical errors) is: RA(2000.0) = 345.2+/-1.7 deg Decl.(2000.0) = -35.4+/-1.5 deg We estimate an additional systematic error of 1 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB220905478/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB220905478/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB220905478/json