GCN Circular 30577
Subject
GRB 210801A: BALROG localization (Fermi Trigger 649519043 / GRB 210801581)
Date
2021-08-01T18:16:08Z (3 years ago)
From
Jochen Greiner at MPE,Garching <jcg@mpe.mpg.de>
F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
649519043 at 13:57:18 on 01 Aug. 2021 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) = 238.2+/-1.5 deg
Decl.(2000.0) = -40.8+/-0.9 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210801581/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210801581/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210801581/json