Space target meteorite forecasting method suitable for space environment disturbance condition

Abstract

The invention discloses a space target meteorite forecasting method suitable for a space environment disturbance condition. The method specifically comprises the following steps: T1, counting ballistic coefficient results of the meteorite target under different space environment conditions in history, and establishing a ballistic coefficient corresponding table; T2, determining the orbit of the meteorite target, obtaining the position and the speed S0 of the space target at the end point of the data arc section; and T3, carrying out meteorite time and drop point prediction. The invention relates to the technical field of spaceflight measurement and control. According to the space target meteorite forecasting method suitable for a space environment disturbance condition, a reasonable ballistic coefficient can be selected according to disturbance conditions of a space environment at different forecasting moments; and the atmospheric resistance acceleration is calculated, so that the atmospheric resistance modeling error can be greatly reduced, the problem of low meteorite forecasting precision caused by relatively large atmospheric density modeling error in a space environment disturbance period can be solved, and the influence of the atmospheric density modeling error on meteorite forecasting in space environment disturbance is reduced.

Description

technical field [0001] The invention relates to the technical field of aerospace measurement and control, in particular to a method for predicting the fall of a space target applicable to the disturbance of the space environment. Background technique [0002] Since the first space activity by humans in 1957, more than 30,000 tons of space junk have returned to Earth. With the increasing frequency of human space activities and the continuous accumulation of space objects’ flight time in orbit, the number of fallen space objects is also increasing. Large-mass space objects will not be completely burned during the fall process, and 10-40% of the wreckage will return to the earth's surface, which poses a great threat to the life groups, building facilities, and ecological environment on the surface. This type of object is also called For dangerous falling targets, such as the fallen US SkyLab, the former Soviet Union’s COSMOS 1402 nuclear-powered satellite, and the upper stage o...

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Problems solved by technology

[0007] Aiming at the deficiencies of the prior art, the present invention provides a space object fall prediction method suitable for space environment disturbances, which can overcome the problem of low accuracy of fall prediction caused by large atmospheric density modeling errors during the space environment disturbance period, and can Greatly improve the accuracy of the fall prediction of space objects during the disturbance period, and reduce the influence of the error of the atmospheric density model on the fall prediction when the space environment is disturbed

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