TITLE: GCN CIRCULAR NUMBER: 44289 SUBJECT: GRB 260413A: Fermi GBM Final Real-time Localization DATE: 26/04/13 13:54:18 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 13:43:37 UT on 13 Apr 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260413A (trigger 797780622.310696 / 260413572). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 87.0, Dec = -64.0 (J2000 degrees, equivalent to J2000 05h 47m, -64d 00'), with a statistical uncertainty of 26.0 degrees. The angle from the Fermi LAT boresight is 15.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260413572/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/bn260413572/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260413572/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/44289. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...