Asteroid orbital transfer method

Abstract

The invention relates to an asteroid orbital transfer method. According to the asteroid orbital transfer method, an asteroid orbit is changed through a tether formation flight system composed of a solar sail and an asteroid. The asteroid orbital transfer method comprises the steps that the solar sail backwards and horizontally throws out a tether lock connected with a tether, the solar sail captures the tether lock after circling the asteroid for a circle, and is in butt joint with the tether lock, and then the tether is retracted so that the tether can be bound to the surface of the asteroid; the solar sail is thrown off through autorotation of the asteroid; the light pressure borne by the solar sail is adjusted by adjusting the posture of the solar sail, acting force is transmitted to the asteroid through the tether, and the autorotation speed of the asteroid is gradually reduced through the acting force; after the autorotation speed of the asteroid is reduced, the asteroid is transferred to a low-energy transfer orbit through adjustment of the posture of the solar sail. The asteroid orbital transfer method has the advantages that the threat caused by the asteroid to the earth is removed, the structure and the ingredients of the asteroid cannot be damaged, long-term orbital transfer can be carried out, and therefore the asteroid can be controlled to serve as a transfer station for interplanetary exploration of the human.

Description

technical field [0001] The invention belongs to the technical field of aerospace orbital dynamics, and relates to a method for changing the orbit of an asteroid. Background technique [0002] Although a near-Earth asteroid hitting the Earth is a small probability event, its possibility cannot be ignored. The currently proposed methods of defending against asteroids hitting the earth can be divided into two categories according to the defense results: one is to destroy the asteroid or split it into smaller celestial bodies that do not pose a threat to the earth; the other is to change the asteroid running track. The first type of method cannot guarantee that the small celestial bodies that are split into are completely harmless to the earth. Even if the asteroid is split into small enough celestial bodies, when the asteroid is destroyed, human beings also lose an important "information carrier" for studying the origin and evolution of the solar system ". For the second met...

AI Technical Summary

Problems solved by technology

The first type of method cannot guarantee that the small celestial bodies that are split into are completely harmless to the earth. Even if the asteroid is split into small enough celestial bodies, when the asteroid is destroyed, human beings also lose an important "information carrier" for studying the origin and evolution of the solar system "

For the second method, the existing method can only guarantee to temporarily change the orbit of the asteroid, and lacks effective control means for the asteroid after the orbit is changed. method, this method can only change the orbit of the asteroid at one time, and the orbit of the asteroid after the collision cannot be artificially controlled. Whether the asteroid will still pose a threat to the earth after several years cannot be completely ruled out, that is, after changing the orbit The asteroid is still an uncontrollable celestial body

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