Efficient Use of the Geostationary Satellite Orbit: Allotment Planning and Its Practical Use

  • Y. Ito
  • M. Yamada


The Allotment Plan was created and adopted in WARC-ORB2 held in 1989. For the practical use of the plan, especially when accommodating modifications or new requirements, it is still necessary to establish a workable algorithm to efficiently preserve margins for the unforeseen use. This paper proposes a concept of c/e ratio which is useful to find locations of additional requirements. It is also shown that the c/e ratio when combined with the concept of the predetermined arc can improve the use of the allotment plan.


Expansion Ratio Contraction Ratio Allotment Plan Numerical Ratio Neighboring Satellite 
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  1. [1]
    CCIR, (1988) “Final Acts of the World Administrative Conference on the Use of the Geostationary Satellite Orbit and the Planning of Space Services Utilizing It”, 88 Geneva.Google Scholar
  2. [2]
    Y.Ito, T.Mizuno and T.Muratani, (1979) “Efficient Utilization of Geostationary Orbit Through Optimization”, IEEE Trans, on Comm. vol. 27 No. 10.CrossRefGoogle Scholar
  3. [3]
    T.Mizuno, Y.Ito and T.Muratani, (1984) “Computer Tools for Optimizing Orbit Use”, AIAA 10th Communication Satellite Systems Conference, pp 549–557.Google Scholar

Copyright information

© Springer-Verlag Tokyo 1991

Authors and Affiliations

  • Y. Ito
    • 1
  • M. Yamada
    • 1
  1. 1.KDD Meguro Research and Development LaboratoriesTokyoJapan

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