TITLE: GCN CIRCULAR NUMBER: 40845 SUBJECT: GRB 250626A: Fermi GBM Final Real-time Localization DATE: 25/06/26 22:24:29 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 SHORT GRB At 22:13:53 UT on 26 Jun 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250626A (trigger 772668838.960546 / 250626926). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 35.5, Dec = -6.6 (J2000 degrees, equivalent to J2000 02h 22m, -6d 35'), with a statistical uncertainty of 19.9 degrees. The angle from the Fermi LAT boresight is 58.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250626926/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/bn250626926/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250626926/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/40845. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...