TITLE: GCN CIRCULAR NUMBER: 35994 SUBJECT: GRB 240329A: BALROG localization (Fermi Trigger 733441392 / GRB 240329905) DATE: 24/03/29 22:04:21 GMT FROM: Jochen Greiner at MPE jcgrog@mpe.mpg.de

T. Preis, B. Biltzinger, J. Burgess & J. Greiner (all MPE Garching) report:

The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 733441392 at 21:43:07 on 29 March 2024 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 is: RA(2000.0) = 248.9 deg Decl.(2000.0) = -1.4 deg The 1 sigma statistical error radius is 3.4 deg. We estimate an additional systematic error of 1 deg.

Further details are available at: https://grb.mpe.mpg.de/grb/GRB240329905/

The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB240329905/healpix

The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB240329905/json

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