This paper deals with the characteristic, the USES and the calculation of orbits of earth synchronous satellite.

本文阐述了地球同步卫星的特征、用途及其轨道计算。

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This paper presents a new method to classify satellite orbits and the basic Characterization of stay orbit.

本文给出卫星轨道分类的一个新方法和逗留轨道的基本特性，这一特性可用于卫星轨道的初步设计。

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According to the limitation of the satellite orbits and spectrum resources, this paper puts forward some methods for making effective use of the satellite orbits and spectrum resources.

根据卫星轨道和频谱资源的有限性，提出了有效利用卫星轨道和频谱资源的几种方法。

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Satellite and space expert Dr Stuart Eves stressed the large uncertainties involved in tracking the "decay" of satellite orbits (their slow fall back into the Earth's atmosphere).

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Europa, a satellite of Jupiter, and Enceladus, which orbits Saturn, both have large volumes of liquid water buried beneath their icy crusts.

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For 145 years, ITU has coordinated the shared global use of the radio spectrum, promoted international cooperation in assigning satellite orbits, worked to improve telecommunication infrastructure in the developing world, established the worldwide standards that foster seamless interconnection of a vast range of communications systems and addressed the global challenges of our times, such as mitigating the impact of natural disasters and climate change and strengthening cybersecurity.

UNESCO: Post-Conflict and Post-Disaster Responses