TITLE: GCN CIRCULAR NUMBER: 43350 SUBJECT: GRB 260107A: Fermi GBM Final Real-time Localization DATE: 26/01/07 20:07:44 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 19:57:01 UT on 7 Jan 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260107A (trigger 789508626.671092 / 260107831). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 339.0, Dec = 2.0 (J2000 degrees, equivalent to J2000 22h 36m, 2d 00'), with a statistical uncertainty of 2.6 degrees. The angle from the Fermi LAT boresight is 73.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260107831/q... The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260107831/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260107831/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/43350. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...