TITLE: GCN CIRCULAR NUMBER: 29047 SUBJECT: GRB 201215A: BALROG localization (Fermi Trigger 629706213 / GRB 201215266) DATE: 20/12/15 06:48:33 GMT FROM: Jochen Greiner at MPE,Garching J. Burgess, F. Kunzweiler, B. Biltzinger, F. Berlato, & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 629706213 at 06:23:28 on 15 Dec. 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) = 192.9+/-3.8 deg Decl.(2000.0) = 18.1+/-3.8 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB201215266/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB201215266/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB201215266/json