GCN Circular 34864
Subject
GRB 231020B: BALROG localization (Fermi Trigger 719530557 / GRB 231020900)
Date
2023-10-21T07:02:45Z (6 months ago)
From
Jochen Greiner at MPE <jcgrog@mpe.mpg.de>
Via
email
T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
719530557 at 21:35:52 on 20 Oct. 2023 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 (1 sigma statistical errors) is:
RA(2000.0) = 221.6+/-0.4 deg
Decl.(2000.0) = 17.6+/-0.6 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB231020900/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB231020900/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB231020900/json