GCN Circular 45158
Subject
GRB 260714B: Fermi GBM Final Real-time Localization
Event
Date
2026-07-14T18:33:58Z (18 days ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
Via
email
The Fermi GBM team reports the detection of a likely LONG GRB
At 18:23:26 UT on 14 Jul 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260714B (trigger 805746211.760106 / 260714766).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 166.4, Dec = 46.7 (J2000 degrees, equivalent to J2000 11h 05m, 46d 42'), with a statistical uncertainty of 4.0 degrees.
The angle from the Fermi LAT boresight is 56.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260714766/quicklook/glg_skymap_all_bn260714766.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/bn260714766/quicklook/glg_healpix_all_bn260714766.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260714766/quicklook/glg_lc_medres34_bn260714766.gif