Satellite orbit
A geocentric orbit or Earth orbit involves any object orbiting the Earth, such as the Moon or artificial satellites. In 1997 NASA estimated there were ... ,Sun-synchronous orbit: An orbit which combines altitude and inclination in such a way that the satellite passes over any given point of the planets's surface at ...
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 Satellite orbit 相關參考資料
Catalog of Earth Satellite Orbits - NASA Earth Observatory
2009年9月4日 — Satellites in geostationary orbit rotate with the Earth directly above the equator, continuously staying above the same spot. This position ... https://earthobservatory.nasa. Geocentric orbit - Wikipedia
A geocentric orbit or Earth orbit involves any object orbiting the Earth, such as the Moon or artificial satellites. In 1997 NASA estimated there were ... https://en.wikipedia.org List of orbits - Wikipedia
Sun-synchronous orbit: An orbit which combines altitude and inclination in such a way that the satellite passes over any given point of the planets's surface at ... https://en.wikipedia.org Low Earth orbit - Wikipedia
The mean orbital velocity needed to maintain a stable low Earth orbit is about 7.8 km/s (28,000 km/h; 17,000 mph), but reduces with increased orbital altitude. https://en.wikipedia.org Satellite - Wikipedia
Pseudo-orbit classifications — Approximately 63% of operational satellites are in low Earth orbit, 6% are in medium-Earth orbit (at 20,000 km), 29% are in ... https://en.wikipedia.org Satellite Database | Union of Concerned Scientists
Which countries have earth-observing satellites? When was the oldest working satellite launched? At what altitudes do most satellites orbit? https://www.ucsusa.org Satellite Map | Space Map Shows 19K+ Satellites Orbiting Earth
Satellite map shows current position and trajectory of over 19300 satellites orbiting the Earth. View satellites by country, type, size, launch date, orbit ... https://maps.esri.com Satellites in geostationary orbit - Wikipedia
A geostationary orbit, also referred to as a geosynchronous equatorial orbit (GEO), is a circular geosynchronous orbit 35,786 kilometres (22,236 miles) in ... https://en.wikipedia.org Types of orbits - ESA
Types of orbit ... Upon launch, a satellite or spacecraft is most often placed in one of several particular orbits around Earth – or it might be sent on an ... https://www.esa.int |