静止軌道(せいしきどう)

せいしきどう
noun
geostationary orbit
science
1. geostationary orbit
The circular orbit high above the equator in which a satellite's orbital period matches the Earth's rotation, so it appears to stay fixed over one point on the ground.
衛星(えいせい)を静止軌道(せいしきどう)に置(お)く。
To place a satellite in geostationary orbit.
静止軌道(せいしきどう)の衛星(えいせい)は地上(ちじょう)から止(と)まって見(み)える。
A satellite in geostationary orbit appears stationary from the ground.
通信(つうしん)衛星(えいせい)の多(おお)くは静止軌道(せいしきどう)に配置(はいち)されている。
Many communication satellites are placed in geostationary orbit.

Usage: 静止軌道(せいしきどう) is the geostationary orbit, in which a satellite circles the Earth once per day and so appears to hover over a fixed point. It is widely used for communication and weather satellites.

Common collocations

Similar words

Related Words

Related: 軌道(きどう) (orbit; trajectory)
Compare: 円軌道(えんきどう) (circular orbit)
Compare: 楕円軌道(だえんきどう) (elliptical orbit)
general
Added 2026.7.2 3:18 · Revised 2026.9.2 13:02
29500/29619_seishikidou