Volume 33 Issue 2
Mar.  2013
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Article Navigation >  Chinese Journal of Space Science  > 2013  >  33(2): 176-181
Yang Zhitao, Liu Lin, Liu Jing, Zhang Yao, Cheng Haowen. A high efficiency orbit screening method for space debris collision prediction[J]. Chinese Journal of Space Science, 2013, 33(2): 176-181. doi: 10.11728/cjss2013.02.176
Citation: Yang Zhitao, Liu Lin, Liu Jing, Zhang Yao, Cheng Haowen. A high efficiency orbit screening method for space debris collision prediction[J]. Chinese Journal of Space Science, 2013, 33(2): 176-181. doi: 10.11728/cjss2013.02.176
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A high efficiency orbit screening method for space debris collision prediction

doi: 10.11728/cjss2013.02.176 cstr: 32142.14.cjss2013.02.176
  • 1.

    Astronomy Department, Nanjing University, Nanjing 210093

  • 2.

    Institute of Space Environment and Astronautics, Nanjing University, Nanjing 210093

  • 3.

    National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012

  • Received Date: 2012-02-17
  • Rev Recd Date: 2012-11-10
  • Publish Date: 2013-03-15
    Abstract
  • In general, there are three prefilters for orbit screening, namely height prefilter, geometrical prefilter and time prefilter. The algorithms of the last two prefilters are slightly different in literatures. The Methods offered by references can hardly be competent in fast collision warning for three days. In this paper, a new orbit screening method is introduced, which can highly improve the screening efficiency and hence reduce the computation time for space debris collision predictions. In this method, the time prefilter algorithm is improved by giving more consideration to the first order perturbation of the target orbit. After that, a distance prefilter is added, which screens through the minimum distance between two objects. As a result, the ratio of objects excluded from the candidates can be improved from about 99% to 99.97%. The correctness and high efficiency of this method got verified through the calculation of the measured data. Therefore, this method can be treated as a theoretical basis for three-day fast collision warning.

     

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