GCN Circular 40882
Subject
GRB 250702A: BALROG localization (Fermi Trigger 773142852 / GRB 250702413)
Event
Date
2025-07-02T11:45:02Z (3 days ago)
From
Jochen Greiner at MPE <jcgrog@mpe.mpg.de>
Via
email
T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
773142852 at 09:54:07 on 02 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) = 324.3 deg
Decl.(2000.0) = 52.9 deg
The 1 sigma statistical error radius is 2.5 deg.
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB250702413/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB250702413/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB250702413/json