TITLE: GCN CIRCULAR NUMBER: 43482 SUBJECT: GRB 260120C: Fermi GBM Final Real-time Localization DATE: 26/01/20 23:15:26 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 23:07:06 UT on 20 Jan 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260120C (trigger 790643231.34709 / 260120963). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 262.0, Dec = 3.4 (J2000 degrees, equivalent to J2000 17h 27m, 3d 23'), with a statistical uncertainty of 9.3 degrees. The angle from the Fermi LAT boresight is 108.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260120963/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/bn260120963/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260120963/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/43482. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...