TITLE: GCN CIRCULAR NUMBER: 11330 SUBJECT: GRB 101008A: Fermi GBM observation DATE: 10/10/11 16:29:13 GMT FROM: Lin Lin at UAH/NAOC Lin Lin (UAH) report on behalf of the Fermi GBM Team: "At 16:43:15.61 UT on 08 Oct. 2010, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 101008A (trigger 308248997 / 101008697). The burst was also detected by the SWIFT-BAT (W. H. Baumgartner et al. 2010, GCN 11318) The GBM on-ground location is consistent with the Swift position. The angle from the Fermi LAT boresight is 79 degrees. The GBM light curve shows a fast rise - slow decay peak with a duration (T90) of about 7 s (50-300 keV). The time-averaged spectrum from T0-1.536 s to T0+5.376 s is best fit by a simple power law function with index -1.42 +/- 0.03 (C-stat 1249.1 for 612 d.o.f.). The event fluence (10-1000 keV) over the above time interval is (2.016 +/- 0.083)E-6 erg/cm^2. The 0.064-sec peak photon flux measured starting from T0+1.344 s in the 10-1000 keV band is 4.90 +/- 0.84 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."