TITLE: GCN CIRCULAR NUMBER: 43343 SUBJECT: GRB 260105B: BALROG localization (Fermi Trigger 789348101 / GRB 260105973) DATE: 26/01/06 08:43:43 GMT FROM: Jochen Greiner at MPE <jcgrog@mpe.mpg.de> T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 789348101 at 23:21:36 on 05 Jan. 2026 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 is: RA(2000.0) = 258.7 deg Decl.(2000.0) = 7.9 deg The 1 sigma statistical error radius is 2.1 deg. We estimate an additional systematic error of 1 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB260105973/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB260105973/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB260105973/json View this GCN Circular online at https://gcn.nasa.gov/circulars/43343. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...