A Method for Observing Space Objects with High Coverage

Abstract

The invention relates to a method for observing a space target with a high coverage rate. The method comprises the following steps: determining the number N of observation satellites for observing thespace target; determining an observation lower edge of each observation satellite, wherein a tangent point of the observation lower edge of each observation satellite is determined to enable an included angle between a connecting line of the tangent point and the sphere center of the earth and a connecting line between the observation satellite and the sphere center of the earth to be the orbit height of the observation satellite determined according to the determined tangent point of each observation satellite; determining an observation upper edge of each observation satellite; and each observation satellite observes the space target in a visual field formed by the observation upper edge and the observation lower edge. The invention also relates to a corresponding observation constellation. According to the invention, the coverage rate of the observation constellation can be significantly improved, and the telescope load capacity of the observation satellite can be reduced, so thatthe observation reliability is improved and the observation cost is reduced.

Description

technical field [0001] The present invention generally relates to the field of satellite monitoring of space objects, and in particular relates to a method for observing space objects with high coverage. Furthermore, the invention relates to an observation constellation with high coverage. Background technique [0002] In many fields such as scientific research, military affairs, national defense, and national security, it is necessary to monitor space objects such as meteorites, planets, flying objects, and space debris, so as to give the positions and changes of these space objects in the sky, Then determine the position of the space target, so as to calculate or correct its orbit. After obtaining its orbit, the precise position information of the space object can be obtained, so as to provide relevant information for the safe flight of the space spacecraft, or for other scientific research purposes or safety purposes. [0003] At present, the monitoring of space debris ...

AI Technical Summary

Problems solved by technology

However, ground-based systems such as ground-based telescopes will be affected by weather and sunlight when observing stars and space debris, and the daily observation arc is limited, and the re-observation period for debris is too long; although ground-based radars are not affected by weather, sunlight However, it is limited by the geographical location, and after observing the debris, the next observation will take more than 12 hours. For the observation of space debris generated by sudden space events, it will take 8-12 hours to observe. For the aircraft in orbit the security of the

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