TITLE: GCN CIRCULAR NUMBER: 44669 SUBJECT: GRB 260519A: Fermi GBM Final Localization DATE: 26/05/19 18:03:52 GMT FROM: rhamburg@usra.edu The Fermi GBM team reports the detection of a likely LONG GRB "At 10:56:45.51 UT on 19 May 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260519A (trigger 800881010/260519456). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 273.75, Dec = 14.25 (J2000 degrees, equivalent to J2000 18h 15m, +14d 15'), with a statistical uncertainty of 17 degrees. The angle from the Fermi LAT boresight is 83 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260519456/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/bn260519456/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260519456/q..." View this GCN Circular online at https://gcn.nasa.gov/circulars/44669. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...