GCN Circular 34615
Subject
GRB 230904B: BALROG localization (Fermi Trigger 715526984 / GRB 230904562)
Date
2023-09-04T14:01:47Z (8 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
715526984 at 13:29:39 on 04 Sept. 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) = 20.8+/-2.4 deg
Decl.(2000.0) = -26.7+/-0.9 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB230904562/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB230904562/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB230904562/json