Galileo dual-spin attitude and articulation control systemGalileo, the first outer planet explorer to be configured as a dual spinner, will conduct intensive investigation of Jupiter's atmosphere, satellites, and magnetosphere. The exacting mission, coupled with the inherently complex spin and flexible body dynamics of the vehicle, demands careful design of the Galileo Attitude and Articulation Control System (AACS). A brief overview of the Galileo mission and spacecraft is presented, followed by a detailed discussion on the mechanization of the AACS and the many factors that influence its design. Included are discussions on attitude determination and control, high-gain antenna pointing, science scan platform pointing, nutation damping, wobble compensation, spin and despin control, and propellant migration and boom flexibility effects.
Document ID
19780066311
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Ward, R. S. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)