TITLE:   GCN CIRCULAR
NUMBER:  44263
SUBJECT: GRB 260411B: BALROG localization (Fermi Trigger 797587480 / GRB 260411337)
DATE:    26/04/11 08:50:14 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
797587480 at 08:04:35 on 11 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) = 85.7 deg
Decl.(2000.0) = 3.1 deg
The 1 sigma statistical error radius is 2.5 deg.
We estimate an additional systematic error of 2 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB260411337/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB260411337/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB260411337/json