TITLE: GCN CIRCULAR NUMBER: 16592 SUBJECT: GRB 140714A: Fermi GBM detection DATE: 14/07/15 15:53:20 GMT FROM: Hoi-Fung Yu at MPE H.-F. Yu (MPE) reports on behalf of the Fermi GBM Team: "At 06:25:55.42 UT on 14 July 2014, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 140714A (trigger 427011958 / 140714268). The trigger resulted in an Autonomous Repoint Request (ARR) that was accepted and the spacecraft slewed to the GBM in-flight location. The on-ground calculated location, using the GBM trigger data, is RA = 221.0, Dec = 40.3 (J2000 degrees, equivalent to 14h 44m, 40d 18'), with an uncertainty of 1.1 degrees (radius, 1-sigma containment, statistical only; there is additionally a systematic error which is currently estimated to be 2 to 3 degrees). The initial angle from the Fermi LAT boresight, using the GBM on-ground calculated location, is 68 degrees. The GBM light curve consists of two main emission episodes, with a duration (T90) of about 132 s (50-300 keV). The time-averaged spectrum from T0+100.353 s to T0+129.026 s is well fit by a Band function with Epeak = 81.9 +/- 2.3 keV, alpha = -0.84 +/- 0.04, and beta = -2.8 +/- 0.1. The event fluence (10-1000 keV) in this time interval is (1.57 +/- 0.03)E-05 erg/cm^2. The 1-sec peak photon flux measured starting from T0+113.794 s in the 10-1000 keV band is 15.6 +/- 0.4 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."