[vsnet-grb-info 25148] GRB 200228A: BALROG localization (Fermi Trigger 604565918 / GRB 200228291)
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Fri Feb 28 16:27:02 JST 2020
TITLE: GCN CIRCULAR
NUMBER: 27248
SUBJECT: GRB 200228A: BALROG localization (Fermi Trigger 604565918 / GRB 200228291)
DATE: 20/02/28 07:24:28 GMT
FROM: Jochen Greiner at MPE,Garching <jcg at 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
604565918 at 06:58:33 on 28 Feb. 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) = 332.9+/-0.9 deg
Decl.(2000.0) = -39.9+/-1.0 deg
We estimate an additional systematic error of 1 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB200228291/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB200228291/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB200228291/json
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