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Since the launch of the Fermi gamma - ray Space Telescope on June 11, 2008,the LAT instrument has solidly detected more than 20 GRBs with high energyphoton emission above 100 MeV. Using the matched filter technique, 3 more GRBshave also shown evidence of correlation with high energy photon emission asdemonstrated by Akerlof et al. In this paper, we present another GRBunambiguously detected by the matched filter technique, GRB 081006A. This eventis associated with more than 13 high energy photons above 100 MeV. Thelikelihood analysis code provided by the $Fermi$ Science Support Center (FSSC)generated an independent verification of this detection by comparison of theTest Statistics (TS) value with similar calculations for random LAT datafields. We have performed detailed temporal and spectral analysis of photonsfrom 8 keV up to 0.8 GeV from the GBM and the LAT. The properties of GRB081006A can be compared to the other two long duration GRBs detected at similarsignificance, GRB 080825C and GRB 090217A. We find that GRB 081006A is moresimilar to GRB 080825C with comparable appearances of late high energy photonemission. As demonstrated previously, there appears to be a surprising dearthof faint LAT GRBs, with only one additional GRB identified in a sample of 74GRBs. In this unique period when both $Swift$ and $Fermi$ are operational,there is some urgency to explore this aspect of GRBs as fully as possible.

Faint high-energy gamma-ray photon emission of GRB 081006A from Fermi observations