Title

Low-Thrust Control of Lunar Orbits

Abstract

A method is presented for the control of lunar orbiters using continuous low-thrust propulsion. While the proposed approach is fairly general and could be useful for a variety of mission scenarios, in this work it is applied to the partic-utar case of obtaintng a lunar Sun-synchronous orbit for use in a lunar mapping mission. Using optimal control theory, it is shown that a lunar orbit can be obtained that is low-altitude, near-polar, and Sun-synchronous. The analytis of the optimal control probtem leads to the commonly seen two-point boundary value problem, which is solved ustng an indirect shoottng algorithm.

Meeting Name

19th AAS/AIAA Space Flight Mechanics Meeting

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Low Thrust; Low-Altitude; Low-Thrust Propulsion; Lunar Orbit; Lunar Orbiter; Mapping Missions; Optimal Control Theory; Optimal Controls; Sun Synchronous Orbits; Two-Point Boundary Value Problem

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2009 American Institute of Aeronautics and Astronautics (AIAA), All rights reserved.

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