TITLE:   GCN CIRCULAR
NUMBER:  29989
SUBJECT: GRB 210511B: BALROG localization (Fermi Trigger 642425204 / GRB 210511477)
DATE:    21/05/11 11:47:05 GMT
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
642425204 at 11:26:39 on 11 May 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) = 314.1+/-1.4 deg
Decl.(2000.0) = 56.3+/-0.6 deg
We estimate an additional systematic error of 1 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210511477/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210511477/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210511477/json