Method for tracking lunar probe by using earth station

Abstract

The invention discloses a method for tracking a lunar probe by using an earth station. The method comprises the following steps of: performing orbit determination on the lunar probe to generate a precise orbital element for the lunar probe to run on a lunar orbit; calculating a synthetic perturbation ephemeris according to the precise orbital element for the lunar probe to run on the lunar orbit and outputting a calculation result to a synthetic perturbation ephemeris file; calculating earth shadow forecast, moon shadow forecast and ascending node forecast, calculating substellar point forecast of the lunar probe relative to earth and moon and calculating the substellar point forecast of the sun relative to earth and moon; calculating the position of the lunar probe relative to the earth station; calculating shelter of the moon and forecasting the condition that the lunar probe is sheltered by the moon; generating an earth station observation forecast file; and tracking the lunar probe by the earth station according to the observation forecast file. By the method, the measurement and control of the lunar probe and the receiving of probe data are tracked by using the earth station.

Description

technical field [0001] The invention relates to the technical field of tracking a deep-space probe by using an earth station, in particular to a method for tracking a lunar probe by using an earth station. Background technique [0002] Deep space exploration is the first step for human beings to understand the earth, the solar system and the universe, and then investigate, explore and settle other celestial bodies in the solar system. Deep space exploration mainly includes lunar exploration, planetary exploration, interplanetary exploration and interstellar exploration. Through deep space exploration, it can help humans study the origin, evolution and current status of the solar system and the universe, further understand the formation and evolution of the earth's environment, and understand the relationship between space phenomena and the earth's natural systems. From a practical and long-term point of view, the exploration and development of deep space has very important ...

AI Technical Summary

Problems solved by technology

However, when using the Lagrangian polynomial interpolation method, it may be due to the inappropriate selection of interpolation points that the phenomenon of being interpolated cannot be better approximated with the increase of the interpolation polynomial degree (that is, the Runge phenomenon), thereby affecting Accuracy of Lunar Probe's Precise Ephemeris

[0006] The above-mentioned defects will directly lead to errors in the process of tracking the lunar probe by the earth station or even errors that cannot be tracked, which will affect the successful implementation of the lunar exploration project.

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