TITLE: GCN CIRCULAR NUMBER: 23990 SUBJECT: Fermi Trigger 575067924 / GRB 190323879: BALROG localization DATE: 19/03/23 21:28:15 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 575067924 at 21:05:19 on 23 March 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) = 36.6+/-0.5 deg Decl.(2000.0) = 3.0+/-0.8 deg We estimate an additional systematic error of 1 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB190323879/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB190323879/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB190323879/json