TITLE: GCN CIRCULAR NUMBER: 43370 SUBJECT: GRB 260111A: Fermi GBM Final Real-time Localization DATE: 26/01/11 16:43:36 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 16:33:14 UT on 11 Jan 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260111A (trigger 789841999.012866 / 260111690). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 224.7, Dec = 50.4 (J2000 degrees, equivalent to J2000 14h 58m, 50d 23'), with a statistical uncertainty of 2.7 degrees. The angle from the Fermi LAT boresight is 12.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260111690/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/bn260111690/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260111690/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/43370. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...