“Sun-synchronous orbit”的概念、定义、翻译、参考文献-科学参考

Sun-synchronous orbit

Space Exploration

The orbit of an artificial satellite that always keeps the same relative orientation to the Sun. It is mostly used for Earth-observation missions, since the orbital plane ensures that the satellite will repeatedly pass over the same area of the Earth during the same conditions of sunlight. This is a low Earth orbit that is nearly a polar orbit, inclined about 98° to the Equator.
An example of a non-Earth spacecraft in a Sun-synchronous orbit is the Mars Global Surveyor. The satellite is in a 2 pm Mars Local Time orbit to take advantage of well-placed shadows for the best views of the planet.

Geology and Earth Sciences

A satellite orbit that remains constant in relation to the Sun, passing close to both poles and crossing the meridians at an angle. The orbit, at a height of about 860 km (one-seventh of an Earth radius), takes about 102 minutes and carries the satellite over a different swathe of territory at each pass, so every point on the surface is overflown every 12 hours, at the same solar times each day. Compare geosynchronous orbit; see also polar orbit.

单词	Sun-synchronous orbit
释义	Sun-synchronous orbit Space Exploration The orbit of an artificial satellite that always keeps the same relative orientation to the Sun. It is mostly used for Earth-observation missions, since the orbital plane ensures that the satellite will repeatedly pass over the same area of the Earth during the same conditions of sunlight. This is a low Earth orbit that is nearly a polar orbit, inclined about 98° to the Equator. An example of a non-Earth spacecraft in a Sun-synchronous orbit is the Mars Global Surveyor. The satellite is in a 2 pm Mars Local Time orbit to take advantage of well-placed shadows for the best views of the planet. Geology and Earth Sciences A satellite orbit that remains constant in relation to the Sun, passing close to both poles and crossing the meridians at an angle. The orbit, at a height of about 860 km (one-seventh of an Earth radius), takes about 102 minutes and carries the satellite over a different swathe of territory at each pass, so every point on the surface is overflown every 12 hours, at the same solar times each day. Compare geosynchronous orbit; see also polar orbit.
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