TITLE: GCN CIRCULAR NUMBER: 41142 SUBJECT: GRB 250723B: Fermi GBM Final Real-time Localization DATE: 25/07/23 14:56:17 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov> The Fermi GBM team reports the detection of a likely LONG GRB At 14:45:37 UT on 23 Jul 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250723B (trigger 774974742.499166 / 250723615). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 358.0, Dec = 50.6 (J2000 degrees, equivalent to J2000 23h 52m, 50d 36'), with a statistical uncertainty of 3.1 degrees. The angle from the Fermi LAT boresight is 114.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250723615/q... The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250723615/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250723615/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/41142. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...