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Pointing control for the International Comet MissionThe design of the pointing control system for the proposed International Comet Mission, intended to fly by Comet Halley and rendezvous with Comet Tempel-2 is presented. Following a review of mission objectives and the spacecraft configuration, design constraints on the pointing control system controlling the two-axis gimballed scan platform supporting the science instruments are discussed in relation to the scientific requirements of the mission. The primary design options considered for the pointing control system design for the baseline spacecraft are summarized, and the design selected, which employs a target-referenced, inertially stabilized control system, is described in detail. The four basic modes of operation of the pointing control subsystem (target acquisition, inertial hold, target track and slew) are discussed as they relate to operations at Halley and Tempel-2. It is pointed that the pointing control system design represents a significant advance in the state of the art of pointing controls for planetary missions.
Document ID
19810034962
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Leblanc, D. R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Schumacher, L. L.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1980
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AAS 80-021
Meeting Information
Meeting: Annual Rocky Mountain Conference
Location: Keystone, CO
Start Date: February 17, 1980
End Date: February 21, 1980
Accession Number
81A19366
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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