GCN 43420: GRB 260115A: BALROG localization (Fermi Trigger 790192010 / GRB 260115741)

2026-01-15T19:22:56.754Z | rev 0 | event: GRB 260115A

T. Preis (University of Innsbruck) & J. Greiner (MPE Garching) report:

The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
 at 17:46:45 on 15 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) = 112.0 deg
Decl.(2000.0) = 7.9 deg
The 1 sigma statistical error radius is 4.6 deg.
We estimate an additional systematic error of 1 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB260115741/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB260115741/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB260115741/json