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ACCOMPLISHMENTS

S mall B usiness I nnovation R esearch. Autonomous Unified Orbit and Attitude Control for Formation Flying using GPS and LQG/LTR Controller Space Products & Applications Fairfax VA. INNOVATION Unified architecture for orbit and attitude control system.

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ACCOMPLISHMENTS

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  1. Small Business Innovation Research Autonomous Unified Orbit and Attitude Control for Formation Flying using GPS and LQG/LTR Controller Space Products & ApplicationsFairfax VA • INNOVATION • Unified architecture for orbit and attitude control system. • Maintains formation pattern and attitude control using GPS code and phase pseudorange data. • Application of nonlinear feedback control technique to solve the nonlinear attitude dynamics and kinematics problem. • ACCOMPLISHMENTS • Developed ‘leader of the fleet’ reference system for relative navigation using feedback control. • SPA received US Patent No. 6,341,249, Autonomous Unified on-Board Orbit and Attitude Control System for Satellites. • Extending Formation Control to include automated rendezvous and docking capability. COMMERCIALIZATION • SPA’s nonlinear attitude tracking control and orbit feedback software is being offered as a ‘plug-in’ to Analytical Graphics’s Satellite Tool Kit commercial software. • SPA has developed these products as a ‘development partner’ of Analytical Graphics, Inc. of Malvern, PA. • GOVERNMENT/SCIENCE APPLICATIONS • Formation Control expected to be applied on NRO’s Passive Imaging Millimeterwave Interferometry (PIMI) project. • AeroAstro Inc. has selected SPA to provide subcontracting help on this study project. Points of Contact: NASA – Dave Folta (301) 286-6082 SPA -Shabbir Parvez(703) 713-1956 Goddard Space Flight Center 1997 Phase II, SS5-077

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