GCN Circular 45093

A. C. Trigg (NPP ORAU, NASA MSFC) reports on behalf of the Fermi Gamma-ray Burst Monitor Team:

"At 16:12:21.43 UT on 06 July 2026, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 260706A (trigger 805047146/260706675),
which was also detected by SVOM/ECLAIRs (J. Alaux et al. 20026, GCN 45089
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 ).
The Fermi GBM on-ground location is consistent with the SVOM/ELCAIRs position.

The angle from the Fermi LAT boresight is 43 degrees.

The GBM light curve displays two peaks with a duration (T90)
of about 17 s (50-300 keV). The time-averaged spectrum
from T0+0.001 to T0+30.616 s is best fit by
a power law function with an exponential high-energy cutoff.
The power law index is -1.13 +/- 0.01 and the cutoff energy,
parameterized as Epeak, is 47.1 +/- 0.6 keV.

The event fluence (10-1000 keV) in this time interval is
(3.18 +/- 0.08)E-06 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+15 s in the 10-1000 keV band is 5.3 +/- 0.3 ph/s/cm^2.

A Band function fits the spectrum equally well
with Epeak= 39.1 +/- 0.5 keV, alpha = -0.71 +/- 0.01 and beta = -2.63 +/- 0.03.

The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog:
https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html

For Fermi GBM data and info, please visit the official Fermi GBM Support Page:
https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"