[vsnet-grb-info 26422] GRB 200928B: BALROG localization (Fermi Trigger 622991684 / GRB 200928552)

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  28522
SUBJECT: GRB 200928B: BALROG localization (Fermi Trigger 622991684 / GRB 200928552)
DATE:    20/09/28 13:41:28 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
622991684 at 13:14:39 on 28 Sept. 2020 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) = 80.3+/-2.6 deg
Decl.(2000.0) = -10.0+/-3.0 deg
We estimate an additional systematic error of 2 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB200928552/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB200928552/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB200928552/json