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


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.


  1. CCIR 1982, Recommendations and Reports of CCIR, Vol.IV-part I (Geneva:International Telecommunication Union), pp.198-200
  2. Johannsen, K. G. & Titus, L. 1986, IEEE Transactions on Instrumentation and Measurement, 35, 344
  3. Kim, K.-S. 2005, Fundamentals of Celestial Mechanics (Seoul: KyungHee University Press), pp.83-105
  4. Lee, B.-S., Lee, H.-J., Kim, J.-M., & Chung, S.-J. 1991, Proceedings of KITE Fall Conference 1991, 14(2), 9
  5. Lieske, J. H., Lederle, T., Fricke, W., & Morando, B. 1977, A&A, 58, 1
  6. Lin, K. T. & Yang, L. J. 1989, Comsat Technical Review, 19, 311
  7. Meeus, J. 1998, Astronomical Algorithms 2nd ed. (Richmond: Willmann-Bell inc.), p.389
  8. Mohamadi, F. & Lyon, D. L. 1988, International Journal of Satellite Communications, 6, 65
  9. Newhall, X. X. 1989, CeMec, 45, 305
  10. Press, W. H., Teukolsky, S. A., Vettering, W. T., & Flannery, B. P. 2002, Numerical Recipes in C++: the art of scientific computing 2nd ed. (NewYork: Cambridge University Press), pp.152-166, 196-204
  11. Shimabukuro, F. I. & Stacey, J. M. 1968, ApJ, 152, 777
  12. Standish, E. M., Newhall, X. X., Williams, J. G., & Yeomans, D. K. 1992, in Explanatory Supplement to the Astronomical Almanac, ed. P. K. Seidelmann (Sausalito: University Science Books), p.281
  13. TU media corp. 2007, private communication
  14. USNO & HMNAO 2008, Astronomical Almanac for the year 2008 (London: The Staionery Office), pp.B24-B33, B61-B68
  15. Van Flandern, T. C. & Pulkkinen, K. F. 1979, ApJs, 41, 391
  16. Vuong, X. T. & Forsey, R. J. 1983, IEEE Transactions on Broadcasting, 29, 121