TITLE: GCN CIRCULAR NUMBER: 8476 SUBJECT: Fermi Detection of GRB 081102 DATE: 08/11/04 16:32:24 GMT FROM: Chryssa Kouveliotou at MSFC C. Kouveliotou (NASA/MSFC) and M.S. Briggs (UAHuntsville) report on behalf of the Fermi GBM Team: At 17:44:21.6 UT on 02 November 2008, the Fermi GBM triggered and located an event (trigger 247340662 / 081102739) which was also seen by SWIFT (Ukwata et al. 2008, GCN 8462). The GBM on-ground location is consistent with the Swift position; the GBM trigger time is 17.4 s earlier than the Swift trigger. The GBM light curve shows a multiple peak event (three and possibly four peaks) with T90= 88 s (50-300 keV). The time-averaged spectrum from T0-2.048 s to T0+46.01 s is best fit by a exponentially cutoff power law model with Epeak = 88.7 +/- 8.3 keV, and index 0.0 +/- 0.3 (chi squared 278 for 238 d.o.f.). The event fluence (50-300 keV) in this time interval is (2.1 +/- 0.05)E-06 erg/cm^2. A Band function fit the spectrum equally well (chi squared 276 for 237 d.o.f.) with Epeak=72 +/- 13, alpha = 0.44 +/- 0.58 and beta = -2.36 +/- 0.32. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog.