TITLE: GCN CIRCULAR NUMBER: 30717 SUBJECT: GRB 210826A: BALROG localization (Fermi Trigger 651654110 / GRB 210826293) DATE: 21/08/26 07:41:33 GMT FROM: Jochen Greiner at MPE,Garching jcg@mpe.mpg.de
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 651654110 at 07:01:45 on 26 Aug. 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) = 84.3+/-5.4 deg Decl.(2000.0) = -75.6+/-0.7 deg We estimate an additional systematic error of 2 deg.
Further details are available at: https://grb.mpe.mpg.de/grb/GRB210826293/
The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB210826293/healpix
The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB210826293/json