# 地球靜止軌道

（重定向自靜止軌道

A 5 × 6 degree view of a part of the geostationary belt, showing several geostationary satellites. Those with inclination 0° form a diagonal belt across the image; a few objects with small inclinations to the equator are visible above this line. The satellites are pinpoint, while stars have created small trails due to the Earth's rotation.

## 实际应用

• 美国的GOES
• 欧空局发射的Meteosat英语Meteosat，该系统由欧洲气象卫星组织EUMETSAT负责运行
• 日本的Himawari
• 中国的“风云”系列卫星
• 印度的INSAT英语INSAT系列卫星

## 高度計算

${\displaystyle \mathbf {F} _{\text{c}}=\mathbf {F} _{\text{g}}}$
${\displaystyle mr\omega ^{2}={\frac {GMm}{r^{2}}}}$
${\displaystyle r^{3}={\frac {GM}{\omega ^{2}}}\to r={\sqrt[{3}]{\frac {GM}{\omega ^{2}}}}}$
• ω 是角速度，一天是23小時56分4秒，一圈是2π
${\displaystyle \omega \approx {\frac {2\mathrm {\pi } ~\mathrm {rad} }{86\,164~\mathrm {s} }}\approx 7.2921\times 10^{-5}~\mathrm {rad} /\mathrm {s} }$
• M 是地球質量 5.9736 × 1024 kg
• G 是萬有引力常數 6.67428 ± 0.00067 × 10−11 m3 kg−1 s−2

${\displaystyle v=\omega r\approx 3.0746~\mathrm {km} /\mathrm {s} \approx 11\,068~\mathrm {km} /\mathrm {h} }$

## 与地球同步轨道的关系

1. 轨道倾角有区别，地球同步轨道不一定在赤道面上方。
2. 观察者看到的现象不同，地球同步轨道上的卫星每天以相同的时间通过地球上的同一个点，地面观察者看到卫星是移动的；而地球静止轨道上的卫星一直固定在其定点位置不动。
3. 星下点英语Ground track轨迹不同，地球同步卫星的星下点轨迹是一条8字形的封闭曲线。

## 外部連結

1. ^ Extra-Terrestrial Relays — Can Rocket Stations Give Worldwide Radio Coverage? (PDF). Arthur C. Clark. October 1945 [2009-03-04]. （原始内容 (PDF)存档于2009-03-18）.
2. ^ "It is therefore quite possible that these stories influenced me subconsciously when … I worked out the principles of synchronous communications satellistes …", op. cit, p. x
3. ^ Extra-Terrestrial Relays — Can Rocket Stations Give Worldwide Radio Coverage? (PDF). Arthur C. Clarke. October 1945 [4 March 2009]. （原始内容 (PDF)存档于18 March 2009）.
4. ^ Basics of Space Flight Section 1 Part 5, Geostationary Orbits. NASA. [21 June 2009].
5. ^ 存档副本. [2008-02-03]. （原始内容存档于2009-03-27）. 已忽略文本“2009-03-27” (帮助)
6. ^
7. ^ Oduntan, Gbenga. The Never Ending Dispute: Legal Theories on the Spatial Demarcation Boundary Plane between Airspace and Outer Space (PDF). Hertfordshire Law Journal, 1(2), p. 75.
8. ^ Shi Hu-Li, Han Yan-Ben, Ma Li-Hua, Pei Jun, Yin Zhi-Qiang and Ji Hai-Fu (2010). Beyond Life-Cycle Utilization of Geostationary Communication Satellites in End-of-Life, Satellite Communications, Nazzareno Diodato (Ed.), ISBN 978-953-307-135-0, InTech, Beyond Life-Cycle Utilization of Geostationary Communication Satellites in End-of-Life.
9. ^
10. ^ “地球同步轨道”就是“地球静止轨道”吗？中国大百科全书，航空航天．1985