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A general-purpose balloon-borne pointing system for solar scientific instruments

Polites, Michael E. (Michael Edward)
[Washington, D.C.] : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; Springfield, VA : For sale by the National Technical Information Service, 1990. 1990

A new state reconstructor for digital control systems using weighted-averaged measurements

Polites, Michael E. (Michael Edward)
[Washington, D.C.] : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1989. 1989

Rotating-unbalanced-mass devices for scanning balloon-borne experiments, free-flying spacecraft, and

Polites, Michael E. (Michael Edward)
[Washington, D.C.] : National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division ; Springfield, VA : For sale by the National Technical Information Service, 1990. 1990