GCN 45037: GRB 260624A: Fermi GBM Final Real-time Localization (Duplicate Submission)
2026-06-24T16:09:12.771Z | rev 2
GCN Circular 45037 is a duplicate of GCN Circular 45036.
GCN 45037: GRB 260624A: Fermi GBM Final Real-time Localization (Duplicate Submission)
2026-06-24T16:09:12.771Z | rev 2
GCN Circular 45037 is a duplicate of GCN Circular 45036.
GCN 45036: GRB 260624A: Fermi GBM Final Real-time Localization
2026-06-24T16:06:42.913Z | rev 0
The Fermi GBM team reports the detection of a likely LONG GRB
At 15:54:14 UT on 24 Jun 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260624A (trigger 804009259.148196 / 260624663).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 54.1, Dec = -21.0 (J2000 degrees, equivalent to J2000 03h 36m, -21d 00'), with a statistical uncertainty of 4.4 degrees.
The angle from the Fermi LAT boresight is 73.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260624663/quicklook/glg_skymap_all_bn260624663.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/bn260624663/quicklook/glg_healpix_all_bn260624663.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260624663/quicklook/glg_lc_medres34_bn260624663.gif