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Orbital Lifetime Analysis of Space Objects  

Seong, Jae-Dong (과학기술연합대학원대학교)
Kim, Hae-Dong (IT융합기술팀)
Publication Information
Aerospace Engineering and Technology / v.13, no.1, 2014 , pp. 184-192 More about this Journal
Abstract
In this paper, the lifetime of the artificial space objects in the LEO is analysed by using TLE data, which is provided by JSpOC. We observed the change of the number of space objects from 1957 and determined the reason of space debris generation. And then, we performed the analysis about present condition of space debris environment. The lifetime analysis includes a total of 11,792 artificial space objects and performed until the year 2050 by orbit propagation. We analyze the annual reentry frequency for the high RCS objects such as nonoperational satellites and rocket bodies, which have the possibility of earth ground impact through STK/Lifetime Tool for accurate and effective calculation. The results show that 9 payloads or rocket bodies will be decayed annually and 2 or 3 objects of total value have the possibility of ground impact. In addition, it is also shown that the 40% of a total analysed objects have the lifetime over 200 years.
Keywords
space debris; orbital lifetime; re-entry; space object;
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