2457. Balancing Lunar Prospector

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Title2457. Balancing Lunar Prospector
Publication TypeConference Paper
Paper Number2457
Year of Publication1999
AuthorsTilley, A.
Conference58th Annual Conference, San Jose, California, May 24-26
Conference LocationSan Jose, California
PublisherSociety of Allied Weight Engineers, Inc.
Date Published5/24/99

This paper is a narrative of Lunar Prospector design evolution, the inherent mass property problems encountered and the extensive measurement and ballasting program which was needed to verify the flight readiness of the vehicle. Lunar Prospector was a spin stabilized lunar research satellite launched from a spinning upper stage. Economic considerations ruled out sophisticated control systems and compelled the system design to be simple and naturally balanced; dynamic balance requirements for spin stabilization drove the need for a high degree of precision in the final results. Nine of the ten vehicle mass properties (mass, three centers of mass, three moments of inertia and two of the three products of inertia) were controlled parameters.

Key Words18. Weight Engineering - Spacecraft Design
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