TITLE: GCN CIRCULAR NUMBER: 11805 SUBJECT: GRB 110318A: Fermi GBM detection DATE: 11/03/18 22:15:54 GMT FROM: Gerard Fitzpatrick at UCD G. Fitzpatrick (UCD) reports on behalf of the Fermi GBM Team:  "At 13:14:16.70 UT on 18th March 2011, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 110318 (trigger 322146858 / 110318552),  which was also detected by the Swift/BAT (Sbarufatti et al. 2011,  GCN 11798). The GBM on-ground location is consistent with the Swift  position. The angle from the Fermi LAT boresight is 70 degrees. The GBM light curve consists of single peak with a duration (T90) of about 12 s (50-300 keV).  The time-averaged spectrum from T0-1 s to T0+10 s is   fit well with  a power law function with an exponential high-energy cutoff.  The power law index is -0.86 +/- 0.04 and the cutoff energy, parameterized as Epeak, is 114.70 +/- 3.72 keV A Band function fits the spectrum equally well with Epeak= 107.00 +/- 5.18 keV, alpha =-0.80 +/- 0.05, and beta = -2.74 +/- 0.25. The event fluence (10-1000 keV) in this time interval is  (8.05 +/- 0.15)E-6 erg/cm^2. The 1-sec peak photon flux measured  starting from T0-1 s in the 8-1000 keV band  is 10.97 +/- 0.29 ph/s/cm^2. The spectral analysis results presented above are preliminary;  final results will be published in the GBM GRB Catalog." [GCN OPS NOTE(19mar11): Per author's request, the citation for GCN Circ 11798 was corrected.]