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Voyager 2 Saturn encounter attitude and articulation control experienceA description is given of the Voyager Attitude and Articulation Control System (AACS). The complex series of maneuvers required for Voyager 2 during the near encounter period to obtain fields and particle data, track the limb of Saturn during the earth occultation period, and reflect the RF beam off the Saturnian ring system are discussed. It is noted that some of these maneuvers involved rotating the spacecraft simultaneously about multiple axes while maintaining accurate pointing of the scan platform, a first for interplanetary missions. Also described are two anomalies experienced by the AACS during the near encounter period. The first was the significant roll attitude error that occurred shortly after all axis inertial control and that continued to grow until celestial reacquisition. The second was that the scan platform slewing in the azimuth axis stopped midway through the near encounter. These anomalies are analyzed, and their effect on future missions is assessed.
Document ID
19820062089
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Hill, M.
(California Institute of Technology, Jet Propulsion Laboratory, Guidance and Control Section, Pasadena CA, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1982
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AAS 82-045
Meeting Information
Meeting: Guidance and control 1982
Location: Keystone, CO
Country: United States
Start Date: January 30, 1982
End Date: February 3, 1982
Accession Number
82A45624
Distribution Limits
Public
Copyright
Other

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