Stationkeeping Method for Libration Point Trajectories
Three-dimensional orbits in the vicinity of the interior libration point (L1) of the Sun-Earth/Moon barycenter system are currently being considered for use with a number of missions planned for the 1990s. Since such libration point trajectories are, in general, unstable, spacecraft moving on these paths must use some form of trajectory control to remain close to their nominal orbit. The primary goal of this effort is the development of a stationkeeping strategy applicable to such trajectories. A method is presented that uses maneuvers executed (impulsively) at discrete time intervals. The analysis includes some investigation of a number of the problem parameters that affect the overall maneuver costs. Simulations are designed to provide representative stationkeeping costs for a spacecraft moving in a libration point trajectory, and preliminary results are summarized.
K. C. Howell and H. Pernicka, "Stationkeeping Method for Libration Point Trajectories," Journal of Guidance, Control, and Dynamics, American Institute of Aeronautics and Astronautics (AIAA), Jan 1993.
The definitive version is available at http://dx.doi.org/10.2514/3.11440
Mechanical and Aerospace Engineering
Article - Journal
© 1993 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.