TITLE: GCN CIRCULAR NUMBER: 25602 SUBJECT: GRB 190901A: BALROG localization (Fermi Trigger 589065714 / GRB 190901890) DATE: 19/09/01 21:51:54 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 589065714 at 21:21:49 on 01 Sept. 2019 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) = 224.7+/-0.8 deg Decl.(2000.0) = -0.5+/-1.1 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB190901890/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB190901890/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB190901890/json