P. Jenke (UAH) reports on behalf of the Fermi GBM Team:
"At 16:15:50.31 on November 18 2014, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 141118A (trigger 438020153/141118678).
The GBM on-ground location, using the Fermi GBM trigger
data, is RA = 158.1, Dec = 19.8 (J2000 degrees, equivalent to
10h 32m 24s, 19d 48'), with an uncertainty of 2.2
degrees (radius, 1-sigma containment,statistical
only; there is additionally a systematic error which is
currently estimated to be 2 to 3 degrees).
GBM's location is consistent with the IPN
Triangulation (K. Hurley et al. 2014, GCN 17073).
This GRB was also detected by Konus-Wind (Golenetskii et al. GCN 17074).
A follow-up search of GBM's error box by iPTF
produced an optical candidate, well within
the GBM 1 sigma confidence region, that on further
investigations turned out to be a fading SNe unrelated
to the GRB (Singer et al. 2014, GCN 17079).
The angle of the burst direction to the Fermi LAT boresight is
The GBM light curve consists of a single peak with a duration
(T90) of about 4.4 s (50-300 keV).
The time-averaged spectrum from T0-2.9 s to T0+3.2s
is well fit by a power law function with an exponential
high-energy cutoff. The power law index is -0.77 +/- 0.09
and the cutoff energy, parameterized as Epeak, is 286 +/- 34 keV.
The event fluence (10-1000 keV) in this time interval is
(3.3 +/- 0.2)E-06 erg/cm^2. The 1 sec peak photon flux measured
starting from T0+0.0 s in the 10-1000 keV band
is 6.5 +/- 0.3 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."