Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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Prediction of Communication Outage Period between Satellite and Earth station Due to Sun Interference

  • Song, Yong-Jun (Solar Physics Lab., Dept. of Astronomy and Space Science, Kyung Hee University) ;
  • Kim, Kap-Sung (School of Space Research, Kyung Hee University) ;
  • Jin, Ho (School of Space Research, Kyung Hee University) ;
  • Lee, Byoung-Sun (Satellite Control and Navigation Research Team, ETRI)
  • Published : 2010.03.15
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Abstract

We developed a computer program to predict solar interference period. To calculate Sun's position, we used DE406 ephemerides and Earth ellipsoid model. The Sun's position error is smaller than 10arcsec. For the verification of the calculation, we used TU media ground station on Seongsu-dong, and MBSAT geostationary communication satellite. We analysis errors, due to satellite perturbation and antenna align. The time error due to antenna align has -35 to +16 seconds at $0.1^{\circ}$, and -27 to +41 seconds at $0.25^{\circ}$. The time errors derived by satellite perturbation has 30 to 60 seconds.

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