[vsnet-grb-info 28230] GRB 210627B: BALROG localization (Fermi Trigger 646509445/ GRB 210627748)

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  30333
SUBJECT: GRB 210627B: BALROG localization (Fermi Trigger  646509445/ GRB 210627748)
DATE:    21/06/27 19:37:43 GMT
FROM:    Jochen Greiner at MPE,Garching  <jcg at mpe.mpg.de>

B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:

The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 646509445
 at 17:57:20 on 27 June 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) = 230.5+/-2.5 deg
Decl.(2000.0) = -5.9+/-1.5 deg
We estimate an additional systematic error of 2 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB210627748/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB210627748/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB210627748/json