TITLE: GCN CIRCULAR NUMBER: 41522 SUBJECT: GRB 250824A: Fermi GBM Final Real-time Localization DATE: 25/08/24 11:34:48 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 11:24:18 UT on 24 Aug 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250824A (trigger 777727463.376698 / 250824475). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 312.0, Dec = 49.5 (J2000 degrees, equivalent to J2000 20h 48m, 49d 30'), with a statistical uncertainty of 2.0 degrees. The angle from the Fermi LAT boresight is 61.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250824475/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/bn250824475/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250824475/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/41522. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...