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Please use this identifier to cite or link to this item: http://hdl.handle.net/2014/40436

Title: Analysis of thrust vectoring capabilities for the Jupiter Icy Moons Orbiter
Authors: Quadrelli, Marco B .
Gromov, Konstantin
Murray, Emmanuell
Keywords: low thrust
trajectories
pointing
control
dynamics
Issue Date: Aug-2005
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007
Citation: AIAA/AAS Astrodynamics Specialist Conference, Lake Tahoe, Nevada, August 2005
Abstract: A strategy to mitigate the impact of the trajectory design of the Jupiter Icy Moons Orbiter (JIMO) on the attitude control design is described in this paper. This paper shows how the thrust vectoring control torques, i.e. the torques required to steer the vehicle, depend on various parameters (thrust magnitude, thrust pod articulation angles, and thrust moment arms). Rather than using the entire reaction control system (RCS) system to steer the spacecraft, we investigate the potential utilization of only thrust vectoring of the main ion engines for the required attitude control to follow the representative trajectory. This study has identified some segments of the representative trajectory where the required control torque may exceed the designed ion engine capability, and how the proposed mitigation strategy succeeds in reducing the attitude control torques to within the existing capability.
URI: http://hdl.handle.net/2014/40436
Appears in Collections:JPL TRS 1992+

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