GCN Circular 45066
Subject
GRB 260703A: Fermi GBM Final Localization
Event
Date
2026-07-03T03:47:10Z (6 days ago)
From
Matt Godwin <msg0028@uah.edu>
Via
Web form
The Fermi GBM team reports the detection of a likely SHORT GRB
"At 02:14:47.19 UT on 03 July 2026, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 260703A (trigger 804737692/260703094).
The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 350.51, Dec = 63.36 (J2000 degrees, equivalent to J2000 23h 22m, +63d 21'),
with a statistical uncertainty of 6.72 degrees.
The angle from the Fermi LAT boresight is 29 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260703094/quicklook/glg_skymap_all_bn260703094.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/bn260703094/quicklook/glg_healpix_all_bn260703094.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260703094/quicklook/glg_lc_medres34_bn260703094.gif"