TITLE: GCN CIRCULAR NUMBER: 41065 SUBJECT: GRB 250711A: BALROG localization (Fermi Trigger 773937617 / GRB 250711611) DATE: 25/07/11 15:08:21 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 773937617 at 14:40:12 on 11 July 2025 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) = 267.8 deg Decl.(2000.0) = 35.9 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/GRB250711611/
The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB250711611/healpix
The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB250711611/json
View this GCN Circular online at https://gcn.nasa.gov/circulars/41065. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...