GCN Circular 44669
Subject
GRB 260519A: Fermi GBM Final Localization
Event
Date
2026-05-19T18:03:52Z (10 days ago)
From
rhamburg@usra.edu
Via
Web form
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/quicklook/glg_skymap_all_bn260519456.png
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/quicklook/glg_healpix_all_bn260519456.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260519456/quicklook/glg_lc_medres34_bn260519456.gif"