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Backup nutation damping strategy for the Galileo spacecraftA discussion is presented of the design and testing of remedial measures that can be taken to achieve reasonable nutation damping of the Galileo spacecraft in the event of failure of its boom damper in flight. One scheme exploits the effects of payload motion on the nutational stability of a spinning spacecraft. However, the spacecraft-motion-compensation algorithm can only be used if the scan platform bore sight is pointed in a direction chosen to produce rapid damping of spacecraft nutation. A second method suggested for nutation damping is a thruster-based open-loop control algorithm, utilizing a pair of thrusters as actuators.
Document ID
19890066696
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Eke, Fidelis O.
(Tuskegee Inst. AL, United States)
Eke, Estelle M.
(Tuskegee University AL, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Spacecraft Design, Testing And Performance
Meeting Information
Meeting: 1989 American Control Conference
Location: Pittsburgh, PA
Country: United States
Start Date: June 21, 1989
End Date: June 23, 1989
Accession Number
89A54067
Distribution Limits
Public
Copyright
Other

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