TITLE: GCN CIRCULAR NUMBER: 9398 SUBJECT: GRB 090514: Fermi GBM detection DATE: 09/05/19 13:59:08 GMT FROM: Colleen A. Wilson at NASA/MSFC/NSSTC Colleen A. Wilson-Hodge (NASA/MSFC) reports on behalf of the Fermi GBM Team: "At 00:08:39.16 UT on 14 May 2009, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 090514 (trigger 263952521 / 090514006). The on-ground calculated location, using the GBM trigger data, is RA = 12.3, DEC = -10.9 (J2000 degrees, equivalent to 0 h 49 m, -10 d 54'), with an uncertainty of 4.6 degrees (radius, 1-sigma containment, statistical only; there is additionally a systematic error which is currently estimated to be 2 to 3 degrees). The angle from the Fermi LAT boresight is 19 degrees. The GBM light curve consists of multiple peaks with a duration (T90) of about 49 s (8-1000 keV). The time-averaged spectrum from T0-1.5 s to T0+56.8 s is adequately fit by a simple power law function with index -1.92 +/- 0.04. The event fluence (8-1000 keV) in this time interval is (8.1 +/- 0.2)E-06 erg/cm^2. The 1-sec peak photon flux measured starting from T0+0.256 s in the 8-1000 keV band is 7.6 +/- 0.2 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."