Method for quickly analyzing service life of space target track based on single-group TLE

Abstract

The invention discloses a method for quickly analyzing the service life of a space target track based on a single-group TLE. The method specifically comprises the following steps: S1, calculating theorbit period first-order attenuation deltaT of a space target based on a single group of TLE, S2, calculating the atmospheric density reference height H, and S3, calculating the orbit service life L.The invention relates to the technical field of aerospace measurement and control. The invention discloses a method for quickly analyzing the service life of a space target track based on single-groupTLE. The track service life calculation precision is greatly improved; practical application requirements are met, the problems that the calculation error is too large when an SGP4 model is used during track life calculation, the difficulty of solving the ballistic coefficient through a single group of TLE is large, and the efficiency of a numerical integration method is low are effectively solved; the track service life calculation precision is basically less than 20%, and the analysis method is used for direct calculation, so that the calculation efficiency has obvious advantages compared with a numerical integration method, and the actual application requirements of large-batch space target track service life calculation are completely met.

Description

technical field [0001] The invention relates to the technical field of aerospace measurement and control, in particular to a single-group TLE-based rapid analysis method for the orbit life of a space target. Background technique [0002] Orbit lifetime analysis of space objects is an important part of space debris mitigation research, space situational deduction, space launch activity planning, etc. years, that is, the orbital life of low-orbit satellites should be less than 25 years. At present, only a very small number of countries or organizations engaged in space activities have the ability to continuously detect space targets, and most of them can only rely on the US Strategic Command released on the space-track website. Two Line Elements (TLE) are used to analyze the orbit life of space targets. Traditional space target orbit life calculation methods are generally based on multiple sets of TLE and use numerical integration methods to perform orbit extrapolation until t...

AI Technical Summary

Problems solved by technology

[0011] Aiming at the deficiencies of the prior art, the present invention provides a rapid analysis method of space target orbit life based on a single group of TLE, which solves the existing problem of fast target orbit life. Analytical method, using the SGP4 model to calculate the orbital life is too large, it is difficult to solve the ballistic coefficient with a single group of TLE, the efficiency of the numerical integration method is low, and the error is easy to diverge when performing medium and long-term forecasting, which is difficult to meet the needs of practical applications

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