TITLE: GCN CIRCULAR NUMBER: 31152 SUBJECT: GRB 211130A: BALROG localization (Fermi Trigger 659978192 / GRB 211130636) DATE: 21/11/30 16:17:17 GMT FROM: Jochen Greiner at MPE,Garching 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 659978192 at 15:16:27 on 30 Nov. 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) = 18.8+/-3.0 deg Decl.(2000.0) = -28.5+/-3.8 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB211130636/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB211130636/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB211130636/json