TITLE: GCN CIRCULAR NUMBER: 39225 SUBJECT: GRB 250208A: Fermi GBM Final Real-time Localization DATE: 25/02/08 05:14:47 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 05:03:59 UT on 8 Feb 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250208A (trigger 760683844.557836 / 250208211). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 191.4, Dec = -11.8 (J2000 degrees, equivalent to J2000 12h 45m, -11d 48'), with a statistical uncertainty of 6.8 degrees. The angle from the Fermi LAT boresight is 39.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250208211/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/bn250208211/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250208211/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/39225. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...