Stable orbiting around small moons using J2-perturbed elliptic restricted problem
Stable orbiting around small moons using J2-perturbed elliptic restricted problem
Confirmed small-body missions Martian Moons eXploration (MMX) and Hera are set to explore Martian moons and the binary asteroid Didymos’s moon Dimorphos, respectively. Orbital dynamics around these small moons differ substantially from those around previously visited targets. Simplified models, such as the circular-restricted three-body problem, cannot yield accurate predictions for orbits and their stability in real-world operations. To be specific, the orbit of the small moon and its vicinity are significantly perturbed by the oblateness of the planet and their relative positions. Realistic control constraints and the unstable 3:1 resonance of retrograde orbits further complicate orbit maintenance around a small moon. Therefore, minimizing the dynamical perturbation on baseline orbits resulting from model mismatches is crucial. This paper introduces the J2-ER3BP+GH model dedicated to describing the orbital dynamics around the small moon. It incorporates the
Binary Asteroids, Elliptic-Restricted 3-Body Problem, J2 Perturbation, Martian Moons Exploration, Orbit Maintenance, Orbital StabilitySmall Moons
1327-1340
Chen, Hongru
8286469d-afe1-46e5-b107-694017de4d97
Hou, Xiyun
f0b359ce-3eeb-4950-9523-88bc4f16b931
Bando, Mai
ad885150-36b7-432d-afb2-a932356de57a
July 2024
Chen, Hongru
8286469d-afe1-46e5-b107-694017de4d97
Hou, Xiyun
f0b359ce-3eeb-4950-9523-88bc4f16b931
Bando, Mai
ad885150-36b7-432d-afb2-a932356de57a
Chen, Hongru, Hou, Xiyun and Bando, Mai
(2024)
Stable orbiting around small moons using J2-perturbed elliptic restricted problem.
Journal of Guidance, Control, and Dynamics, 47 (7), .
(doi:10.2514/1.G008001).
Abstract
Confirmed small-body missions Martian Moons eXploration (MMX) and Hera are set to explore Martian moons and the binary asteroid Didymos’s moon Dimorphos, respectively. Orbital dynamics around these small moons differ substantially from those around previously visited targets. Simplified models, such as the circular-restricted three-body problem, cannot yield accurate predictions for orbits and their stability in real-world operations. To be specific, the orbit of the small moon and its vicinity are significantly perturbed by the oblateness of the planet and their relative positions. Realistic control constraints and the unstable 3:1 resonance of retrograde orbits further complicate orbit maintenance around a small moon. Therefore, minimizing the dynamical perturbation on baseline orbits resulting from model mismatches is crucial. This paper introduces the J2-ER3BP+GH model dedicated to describing the orbital dynamics around the small moon. It incorporates the
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Accepted/In Press date: 1 February 2024
e-pub ahead of print date: 19 March 2024
Published date: July 2024
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Publisher Copyright:
© 2024 by Hongru Chen, Xiyun Hou, and Mai Bando.
Keywords:
Binary Asteroids, Elliptic-Restricted 3-Body Problem, J2 Perturbation, Martian Moons Exploration, Orbit Maintenance, Orbital StabilitySmall Moons
Identifiers
Local EPrints ID: 490996
URI: http://eprints.soton.ac.uk/id/eprint/490996
ISSN: 0731-5090
PURE UUID: caa45bf9-1fc0-4bd2-8979-15e4bff51c13
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Date deposited: 11 Jun 2024 16:33
Last modified: 20 Jul 2024 02:15
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Author:
Hongru Chen
Author:
Xiyun Hou
Author:
Mai Bando
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