TITLE: GCN CIRCULAR NUMBER: 8460 SUBJECT: GRB 081101 (or SGR 0623-0006 ): Fermi GBM detection DATE: 08/11/02 06:27:35 GMT FROM: Andreas von Kienlin at MPE A. von Kienlin (MPE), E. Bissaldi (MPE), M.S. Briggs (UAHuntsville) and C. Kouveliotou (NASA/MSFC) report on behalf of the Fermi GBM Team: "At 11:46:32 UT on 01 November 2008, the Fermi GBM triggered and located an event (trigger 247232793 / 081101491) which was also seen by SWIFT (Stamatikos et al. 2008, GCN 8457, Barthelmy et al. 2008, GCN 8458). The GBM on-ground location is consistent with the Swift position. The GBM light curve shows a single peak with duration of about 224 ms. The event is significantly detected with GBM between 40 - 200 keV. The time-averaged spectrum from T0-0.103 s to T0+0.121 s is best fit by a single power law with index -1.14 +/- 0.07 (chi squared 212 for 234 d.o.f.). The event fluence (50-300 keV) in the same time interval is (1.6 +/- 0.08) E-07 erg/cm^2. The Swift team suggested that the event could be a possible new Soft Gamma Repeater (SGR 0623-0006). The GBM spectrum is more consistent with that of a faint short GRB; the lack of photons below 40 keV is rather unusual for an SGR. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."