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A Comparison of Orbit Determination Performance for the KOMPSAT-2 using Batch Filter and Sequential Filter  

Cho, Dong-Hyun (한국항공우주연구원 융합기술연구팀)
Kim, Hae-Dong (한국항공우주연구원 융합기술연구팀)
Publication Information
Aerospace Engineering and Technology / v.11, no.2, 2012 , pp. 149-157 More about this Journal
Abstract
In this paper, the performance of the sequential filter for a space debris collision management system is analyzed by using the flight data of KOMPSAT-2. To analyze the performance of the sequential filter, the results of batch filter used in the orbit determination system of the KOMPSAT-2 ground station is used as reference data. The overlap method is also used to evaluate the orbit accuracy. This paper shows that the orbit determination accuracy of the sequential filter is similar to that of the KOMPSAT-2 ground station, but dissimilar characteristics exist due to the filter difference. In addition, it is also shown that the orbit determination accuracy is order of 1m root mean square by using 30 hour GPS navigation solutions and 6 hour comparison period for the overlap method.
Keywords
orbit determination; ODTK(ODTK); sequential filter; KOMPSAT-2;
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