TITLE: GCN CIRCULAR NUMBER: 44670 SUBJECT: GRB 260519B: Fermi GBM Final Localization DATE: 26/05/19 18:43:23 GMT FROM: oindabimukherjee@gmail.com The Fermi GBM team reports the detection of a likely LONG GRB "At 03:37:41.37 UT on 19 May 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260519B (trigger 800854666/260519151). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 85.76, Dec = -73.67 (J2000 degrees, equivalent to J2000 -4h 54m, +17d 0'), with a statistical uncertainty of 17.01 degrees. The angle from the Fermi LAT boresight is 25 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260519151/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/bn260519151/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260519151/q..." View this GCN Circular online at https://gcn.nasa.gov/circulars/44670. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...