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GCN Circular 33469

Subject
GRB 230313A: BALROG localization (Fermi Trigger 700400328 / GRB 230313485)
Date
2023-03-13T12:42:40Z (a year ago)
From
Jochen Greiner at MPE,Garching <jcg@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
700400328 at 11:38:43 on 13 March 2023 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) = 201.0+/-2.1 deg
Decl.(2000.0) = 52.3+/-2.3 deg
We estimate an additional systematic error of 2 deg.

Further details are available at:
https://grb.mpe.mpg.de/grb/GRB230313485/

The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB230313485/healpix

The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB230313485/json
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