TITLE: GCN CIRCULAR NUMBER: 38651 SUBJECT: GRB 241223A: BALROG localization (Fermi Trigger 756648531 / GRB 241223506) DATE: 24/12/23 16:10:10 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 756648531 at 12:08:46 on 23 Dec. 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) = 160.4 deg Decl.(2000.0) = -34.3 deg The 1 sigma statistical error radius is 0.8 deg. We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB241223506/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB241223506/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB241223506/json View this GCN Circular online at https://gcn.nasa.gov/circulars/38651. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...