TITLE: GCN CIRCULAR NUMBER: 27476 SUBJECT: GRB 200402B: BALROG localization (Fermi Trigger 607537834 / GRB 200402688) DATE: 20/04/02 16:53:08 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 607537834 at 16:30:29 on 02 April 2020 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) = 193.9+/-2.2 deg Decl.(2000.0) = -10.1+/-2.7 deg We estimate an additional systematic error of 1 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB200402688/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB200402688/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB200402688/json