TITLE: GCN CIRCULAR NUMBER: 44413 SUBJECT: GRB 260424B: Fermi GBM Final Localization DATE: 26/04/27 21:13:35 GMT FROM: Angus Jameson <abj0023@uah.edu> The Fermi GBM team reports the detection of a likely SHORT GRB "At 15:30:22.50 UT on 24 April 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260424B (trigger 798737427/260424646). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 171.74, Dec = 20.24 (J2000 degrees, equivalent to J2000 11h 26m, +20d 14'), with a statistical uncertainty of 14.80 degrees. The angle from the Fermi LAT boresight is 41 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260424646/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/bn260424646/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260424646/q..." View this GCN Circular online at https://gcn.nasa.gov/circulars/44413. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...