TITLE: GCN CIRCULAR NUMBER: 17133 SUBJECT: GRB 141202A: Fermi GBM Detection DATE: 14/12/03 13:53:27 GMT FROM: Oliver Roberts at UCD/Fermi O.J. Roberts (UCD) reports on behalf of the Fermi GBM Team: "At 11:17:05.61 UT on the 2nd of December 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 141202A (trigger 439211828 / 141202470 ). The GBM on-ground location, using the Fermi GBM trigger data, is RA = 145.0, Dec =+59.9, with an uncertainty of 3.3 degrees (radius, 1-sigma containment,statistical only; there is additionally a systematic error which is currently estimated to be 2 to 3 degrees). The GBM location is consistent with the IPN Triangulation (Golenetskii et al. 2014, GCN 17131). The angle from the Fermi LAT boresight is about 78 degrees. The GBM light curve consists of a single peak with a duration (T90) of about 1.3 s (50-300 keV). The time-averaged spectrum from T0+0.0 s to T0+1.3 s is adequately fit by a power law function with an exponential high-energy cutoff. The power law index is -0.11 +/- 0.08 and the cutoff energy, parameterized as Epeak, is 596 +/- 40 keV. The event fluence (10-1000 keV) in this time interval is (4.2 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+0.1 s in the 10-1000 keV band is 8.4 +/- 0.3 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."