GCN Circular 14896
G. Fitzpatrick (UCD) reports on behalf of the Fermi GBM Team: At 03:22:23.36 UT on 12 June 2013, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 130612A (trigger 392700146/130612141) which was also detected by the Swift/BAT (Racusin et al., GCN Circ. 14874). The GBM on-ground location is consistent with the Swift position. The GBM light curve consists of a single peak with a duration (T90) of about 5.6 s (50-300 keV). The time-averaged spectrum from T0-2.6 s to T0+2.3 s is adequately fit by a power law function with an exponential high-energy cutoff. The power law index is -1.3 +/- 0.3 and the cutoff energy, parameterized as Epeak, is 61.9 +/- 10.5 keV. The event fluence (10-1000 keV) in this time interval is (5.7 +/- 0.6)E-07 erg/cm^2. The 1-sec peak photon flux measured starting from T0-1.8 s in the 10-1000 keV band is 4.1 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog.