TITLE: GCN CIRCULAR NUMBER: 14189 SUBJECT: GRB 130206A: Fermi GBM observation DATE: 13/02/07 22:21:38 GMT FROM: Adam Goldstein at Fermi-GBM/UAH A. Goldstein (UAH) reports on behalf of the Fermi GBM Team: At 19:36:30.45 UT on 06 February 2013, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 130206A (trigger 381872193 /130206817) which was also detected by the Swift/BAT (De Pasquale et al. 2013, GCN 14181). The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 19 degrees. The GBM light curve consists of three overlapping pulses with a duration (T90) of about 91 s (50-300 keV). The time-averaged spectrum from T0=-1.5 s to T0+85.6 s is adequately fit by a power law function with an exponential high-energy cutoff. The power law index is -1.1 +/- 0.2 and the cutoff energy, parameterized as Epeak, is 132.6 +/- 34.0 keV. The event fluence (10-1000 keV) in this time interval is (3.3 +/- 0.4)E-6 erg/cm^2. The 1-sec peak photon flux measured starting from T0+1.8 s in the 10-1000 keV band is 2.1 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog.