GCN 44175: GRB 260401A: BALROG localization (Fermi Trigger 796733611 / GRB 260401454)

2026-04-01T12:11:04.782Z | rev 0 | event: GRB 260401A

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

The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
796733611 at 10:53:26 on 01 April 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) = 220.7 deg
Decl.(2000.0) = -16.9 deg
The 1 sigma statistical error radius is 1.3 deg.
We estimate an additional systematic error of 1 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB260401454/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB260401454/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB260401454/json