"To find definite answers for the presence of water on the poles of Moon, to facilitate selection of future lunar landing sites and aid in construction of architectural bases, to assist proper lunar resource utilization and to improve lunar gravity models there is a great interest and need for highly accurate, reliable and efficient lunar surface mapping and communication. This thesis is intended to aid in proper selection of orbits for future lunar missions by demonstrating the impact of using electric propulsion on the search space of feasible and useful lunar orbits. The requirements for future lunar mapping and communication are studied and possible options to meet them are investigated. Based on coverage analysis, a constellation of three satellites in high altitude, circular and polar geo-synchronous orbit is proposed to provide an improved lunar communications architecture compared to those previously recommended in literature. Low altitude, circular and polar Sun-synchronous orbits are found to be the best candidate to meet future lunar mapping needs. The feasibility of using electric propulsion for stationkeeping and providing the orbit plane rotation required by these lunar mapping and communication options is determined"--Abstract, page iii.
Mechanical and Aerospace Engineering
M.S. in Aerospace Engineering
Missouri University of Science and Technology
vii, 72 pages
© 2009 Sunil Aggarwal, All rights reserved.
Thesis - Open Access
Library of Congress Subject Headings
Nonlinear control theory
Space vehicles -- Control systems
Space vehicles -- Electric propulsion systems
Print OCLC #
Electronic OCLC #
Link to Catalog Record
Aggarwal, Sunil, "Continuous control of lunar orbits via electric propulsion" (2009). Masters Theses. 4665.