TITLE: GCN CIRCULAR NUMBER: 14941 SUBJECT: GRB 130627A: Fermi GBM detection DATE: 13/06/27 17:08:02 GMT FROM: David Byrne at UCD D.Byrne (UCD) reports on behalf of the Fermi GBM Team: "At 08:55:05.93 UT on 27 June 2013, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 130627A (trigger 394016108 / 130627372), which was also detected by the Swift/BAT (Oates et al. 2013, GCN 14933). The GBM on-ground location is consistent with the Swift position. The GBM light curve shows/consists of a multiple pulses, with a duration (T90) of about 28 s (50-300 keV). The time-averaged spectrum from T0-13.31 s to T0+14.34 s is adequately fit by a power law function with an exponential high-energy cutoff. The power law index is -1.4 +/- 0.2 and the cutoff energy, parameterized as Epeak, is 86 +/- 25 keV. The event fluence (10-1000 keV) in this time interval is (1.334 +/- 0.185)E-06 erg/cm^2. The 1.024-sec peak photon flux measured starting from T0-1.28 s in the 10-1000 keV band is 2.17 +/- 0.25 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."