Modeling method of space debris environment long-term evolution model

A technology of space debris and modeling method, which is applied in the field of modeling of long-term evolution model of space debris environment, and can solve the problem that the model is not open to the public

Active Publication Date: 2017-12-08
NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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Problems solved by technology

At present, there is no long-term evolution model of space debris in China, and foreign models are not open to the public.

Method used

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  • Modeling method of space debris environment long-term evolution model
  • Modeling method of space debris environment long-term evolution model
  • Modeling method of space debris environment long-term evolution model

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0024] The space debris environment long-term evolution model SOLEM (Space Objects Long-term Evolution Model) of the present invention uses the current space debris environment data as input, uses the semi-analytic method to perform orbit forecasting, and constantly updates the orbit elements during the forecasting process, and considers future spacecraft The launch, post-mission orbit abandonment and active debris removal measures, as well as the possible dangerous rendezvous and collision disintegration events (collision probability assessment algorithm and collision disintegration analysis) in the course of orbit evolution, give the number of space debris at any time in the future. Density distribution and other inf...

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Abstract

The invention provides a modeling method of a space debris environment long-term evolution model. The current space debris group is used as initial input; the current space debris group is subjected to orbit prediction by a simplified semi-analysis method; and further space object emission, on-orbit object collision disassembly analysis, orbit discarding analysis and active debris clearing are considered, so that the space debris environment long-term evolution result is obtained. The evolution model can describe the space debris environment evolution condition at a random moment in next two hundred years at different emission levels by using different debris retarding and clearing measures, so that strategy analysis and model support can be provided for China for active debris clearing in further.

Description

technical field [0001] The invention relates to the field of space object environment modeling, in particular to a modeling method for a long-term evolution model of the space debris environment, which is used to describe and predict the evolution trend of the space debris environment in the next two hundred years by simulating the main increase and decrease mechanisms of space debris. Background technique [0002] With the development of aerospace technology, human spaceflight activities are becoming more and more frequent, and the number of space debris left in space is also increasing. Some scientists have pointed out that when the density of objects in low-Earth orbit reaches a high enough level, a collision avalanche effect will be triggered. For this reason, many countries in the world have carried out research on the long-term evolution modeling of the space debris environment. These studies usually use the Monte Carlo method to simulate the launch of future spacecraf...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 刘静王晓伟杨志涛程昊文张耀吴相彬沈丹
Owner NAT ASTRONOMICAL OBSERVATORIES CHINESE ACAD OF SCI
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