Date of Award
3-2024
Document Type
Thesis
Degree Name
Master of Science in Aeronautical Engineering
Department
Department of Aeronautics and Astronautics
First Advisor
Robert A. Bettinger, PhD
Abstract
This thesis investigates the disposal of end-of-life spacecraft from key orbits with a focus on minimizing delta-v expenditure and preventing debris propagation. Simulated Lyapunov and halo orbits around the L2 Lagrange point are analyzed for disposal feasibility. Both impulsive and continuous thrust methods are explored to achieve disposal trajectories. Continuous thrust will be modeled after a Hall thruster utilizing electric propulsion. Leveraging the Circular Restricted Three Body Problem framework, low delta-v cost trajectories are computed, with a multi-level correction algorithm optimizing total delta-v via heteroclinic connections. The study assesses various delta-v amounts for Earth-Moon system escape and evaluates the potential for reaching the Earth's sphere of influence and Hill sphere. Results indicate a successful selection of disposal trajectories for both Lyapunov and halo orbits, offering insights into effective space traffic management strategies. This research establishes a foundational framework for future cislunar disposal operations, contributing to sustainable space traffic management practices.
AFIT Designator
AFIT-ENY-MS-24-M-205
Recommended Citation
Sargent, Ryan M., "Preliminary Assessment of Cislunar Disposal Orbits" (2024). Theses and Dissertations. 7895.
https://scholar.afit.edu/etd/7895
SF298 for AFIT-ENY-MS-24-M-205 - Sargent, R.
Comments
A 12-month embargo was observed for posting this work on AFIT Scholar.
Distribution Statement A, Approved for Public Release. PA case number on file.
The views expressed are those of the authors and do not reflect the official guidance or position of the United States Government, the Department of Defense the United States Air Force or the United States Space Force.
The SF298 form for this work is included separately in the additional files section below.
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