TITLE:   GCN CIRCULAR
NUMBER:  45096
SUBJECT: GRB 260707A: Fermi GBM Final Real-time Localization
DATE:    26/07/07 03:36:24 GMT
FROM:    Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>

The Fermi GBM team reports the detection of a likely SHORT GRB

At 03:25:09 UT on 7 Jul 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260707A (trigger 805087514.330134 / 260707142).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 283.4, Dec = -54.7 (J2000 degrees, equivalent to J2000 18h 53m, -54d 42'), with a statistical uncertainty of 13.3 degrees.

The angle from the Fermi LAT boresight is 165.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260707142/quicklook/glg_skymap_all_bn260707142.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/bn260707142/quicklook/glg_healpix_all_bn260707142.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260707142/quicklook/glg_lc_medres34_bn260707142.gif