Trajectory design for a rendezvous mission to Earth’s Trojan asteroid 2010TK7
| Autor: | Hanlun Lei, Lei Zhang, Bo Xu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Physics
Atmospheric Science Gravity tractor 010504 meteorology & atmospheric sciences Spacecraft business.industry Rendezvous Aerospace Engineering Astronomy and Astrophysics Trajectory optimization 01 natural sciences Astrobiology Geophysics Space and Planetary Science Trojan 0103 physical sciences Trajectory Gravity assist General Earth and Planetary Sciences Earth orbit rendezvous Aerospace engineering business 010303 astronomy & astrophysics 0105 earth and related environmental sciences |
| Zdroj: | Advances in Space Research. 60:2505-2517 |
| ISSN: | 0273-1177 |
| DOI: | 10.1016/j.asr.2017.09.020 |
| Popis: | In this paper a rendezvous mission to the Earth’s Trojan asteroid 2010 TK 7 is proposed, and preliminary transfer trajectories are designed. Due to the high inclination ( ∼ 20.9°) of the target asteroid relative to the ecliptic plane, direct transfers usually require large amounts of fuel consumption, which is beyond the capacity of current technology. As gravity assist technique could effectively change the inclination of spacecraft’s trajectory, it is adopted to reduce the launch energy and rendezvous velocity maneuver. In practical computation, impulsive and low-thrust, gravity-assisted trajectories are considered. Among all the trajectories computed, the low-thrust gravity-assisted trajectory with Venus–Earth–Venus (V–E–V) swingby sequence performs the best in terms of propellant mass. For a spacecraft with initial mass of 800 kg , propellant mass of the best trajectory is 36.74 kg . Numerical results indicate that both the impulsive and low-thrust, gravity-assisted trajectories corresponding to V–E–V sequence could satisfy mission constraints, and can be applied to practical rendezvous mission. |
| Databáze: | OpenAIRE |
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