TITLE: GCN CIRCULAR NUMBER: 15796 SUBJECT: GRB 140206A: Fermi GBM detection DATE: 14/02/06 18:29:24 GMT FROM: Narayana Bhat at U Alabama/Huntsville/GBM A. von Kienlin (MPE) and P. N. Bhat (UAH) report on behalf of the Fermi GBM Team: "At 07:18:15.98 UT on 06 February 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 140206A (trigger 413363898 / 140206304), which was also detected by the Swift (Lien et al. 2014, GCN 15784) The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 123 degrees. The GBM light curve shows a single pulse with a duration (T90) of about 27 s (50-300 keV). The time-averaged spectrum from T0-0.5 s to T0+14.3 s is best fit by a Band function with Epeak = 120 +/- 6 keV, alpha = 0.2 +/- 0.1, and beta = -2.4 +/-0.1. The event fluence (10-1000 keV) in this time interval is (1.47 +/- 0.03)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+4.9 s in the 10-1000 keV band is 17.4 +/- 0.5 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."