Date of Award
3-2021
Document Type
Thesis
Degree Name
Master of Science
Department
Department of Aeronautics and Astronautics
First Advisor
Robert Bettinger, PhD
Abstract
This research involves theoretical analysis of the short- and long-term motion of space debris in cislunar trajectories following a spacecraft catastrophic mishap. Specifically, the research formulates a debris propagation model using four-body dynamics and determines debris trajectories following breakup events for a variety of different initial orbital positions. A spacecraft survivability model is then used to quantify the risks from the debris to other cislunar spacecraft. First, a study of the risks due to natural debris comprising the Kordylewski clouds at the Earth-Moon ๐ฟ4 and ๐ฟ5 Lagrange points is conducted as an introduction to cislunar debris propagation. Next, five artificial cislunar debris case studies are examined, which include the study of catastrophic spacecraft mishaps at the collinear Earth-Moon Lagrange points ๐ฟ1 and ๐ฟ2, during an Apollo-like Earth-Moon transfer, during a transfer between ๐ฟ1 and Earth along the ๐ฟ1 manifold, at the stable Lagrange points ๐ฟ4 and ๐ฟ5, and in lunar orbit. Risks to current operational spacecraft near Earth were found to be greatest for the Apollo-like transfer case study, and slight risks to spacecraft in cislunar orbits were found for the other case studies. The ๐ฟ4 and ๐ฟ5 points were found to be vulnerable to debris accumulation in the studies of mishaps at ๐ฟ4 and ๐ฟ5, and debris that circulates cislunar space indefinitely is the primary risk resulting from mishaps at ๐ฟ1, ๐ฟ2, and in the ๐ฟ1 manifold. Overall, research into cislunar debris propagation enhances operational planning outside the traditional near-Earth paradigm of spacecraft mission operations and increases understanding of the debris-related consequences of mishaps within this orbital regime.
AFIT Designator
AFIT-ENY-MS-21-M-289
DTIC Accession Number
AD1139448
Recommended Citation
Boone, Nathan R., "Cislunar Debris Propagation Following a Catastrophic Spacecraft Mishap" (2021). Theses and Dissertations. 4971.
https://scholar.afit.edu/etd/4971