TITLE: GCN CIRCULAR NUMBER: 30942 SUBJECT: GRB 211019A: BALROG localization (Fermi Trigger 656315976 / GRB 211019250) DATE: 21/10/19 06:34:50 GMT FROM: Jochen Greiner at MPE,Garching <jcg@mpe.mpg.de> F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 656315976 at 05:59:31 on 19 Oct. 2021 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) = 107.1+/-0.7 deg Decl.(2000.0) = -38.6+/-0.7 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB211019250/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB211019250/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB211019250/json