\contentsline {section}{\numberline {1}Introduction}{10}{}%
\contentsline {section}{\numberline {2}Trajectory Optimization}{12}{}%
\contentsline {subsection}{\numberline {2.1}The Two-Body Problem}{12}{}%
\contentsline {subsubsection}{\numberline {2.1.1}Kepler's Laws and Equations}{14}{}%
\contentsline {subsection}{\numberline {2.2}Analytical Solutions to Kepler's Equations}{15}{}%
\contentsline {subsubsection}{\numberline {2.2.1}LaGuerre-Conway Algorithm}{17}{}%
\contentsline {subsection}{\numberline {2.3}Non-Linear Problem Optimization}{18}{}%
\contentsline {subsubsection}{\numberline {2.3.1}Non-Linear Solvers}{19}{}%
\contentsline {subsubsection}{\numberline {2.3.2}Linesearch Method}{20}{}%
\contentsline {section}{\numberline {3}Low-Thrust Considerations}{21}{}%
\contentsline {subsection}{\numberline {3.1}Low-Thrust Control Laws}{21}{}%
\contentsline {subsection}{\numberline {3.2}Sims-Flanagan Transcription}{22}{}%
\contentsline {section}{\numberline {4}Interplanetary Trajectory Considerations}{23}{}%
\contentsline {subsection}{\numberline {4.1}Patched Conics}{23}{}%
\contentsline {subsection}{\numberline {4.2}Gravity Assist Maneuvers}{24}{}%
\contentsline {subsection}{\numberline {4.3}Multiple Gravity Assist Techniques}{25}{}%
\contentsline {subsection}{\numberline {4.4}Ephemeris Considerations}{26}{}%
\contentsline {section}{\numberline {5}Algorithm Overview}{27}{}%
\contentsline {subsection}{\numberline {5.1}Trajectory Composition}{27}{}%
\contentsline {subsection}{\numberline {5.2}Inner Loop Implementation}{27}{}%
\contentsline {subsubsection}{\numberline {5.2.1}LaGuerre-Conway Kepler Solver}{27}{}%
\contentsline {subsubsection}{\numberline {5.2.2}Sims-Flanagan Propagator}{27}{}%
\contentsline {subsubsection}{\numberline {5.2.3}Non-Linear Problem Solver}{28}{}%
\contentsline {subsubsection}{\numberline {5.2.4}Monotonic Basin Hopping}{28}{}%
\contentsline {subsection}{\numberline {5.3}Outer Loop Implementation}{28}{}%
\contentsline {subsubsection}{\numberline {5.3.1}Inner Loop Calling Function}{28}{}%
\contentsline {subsubsection}{\numberline {5.3.2}Genetic Algorithm Description}{28}{}%
\contentsline {section}{\numberline {6}Results Analysis}{29}{}%
\contentsline {subsection}{\numberline {6.1}Sample Trajectory to Saturn}{29}{}%
\contentsline {subsubsection}{\numberline {6.1.1}Comparison to Less Optimal Solutions}{29}{}%
\contentsline {subsubsection}{\numberline {6.1.2}Cost Function Analysis}{29}{}%
\contentsline {subsubsection}{\numberline {6.1.3}Comparison to Impulsive Trajectories}{29}{}%
\contentsline {section}{\numberline {7}Conclusion}{30}{}%
\contentsline {subsection}{\numberline {7.1}Overview of Results}{30}{}%
\contentsline {subsection}{\numberline {7.2}Applications of Algorithm}{30}{}%
\contentsline {subsection}{\numberline {7.3}Recommendations for Future Work}{30}{}%