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A satellite state or dependent state is a country that is formally independent but under heavy political, economic, and military influence or control from another country. [1]
A satellite or an artificial satellite [a] is an object, typically a spacecraft, placed into orbit around a celestial body. They have a variety of uses, including communication relay, weather forecasting , navigation ( GPS ), broadcasting , scientific research, and Earth observation.
The term satellite thus became the normal one for referring to an object orbiting a planet, as it avoided the ambiguity of "moon". In 1957, however, the launching of the artificial object Sputnik created a need for new terminology. [5] The terms man-made satellite and artificial moon were very quickly abandoned in favor of the simpler satellite ...
Satellite imaging of the Earth surface is of sufficient public utility that many countries maintain satellite imaging programs. The United States has led the way in making these data freely available for scientific use. Some of the more popular programs are listed below, recently followed by the European Union's Sentinel constellation.
Qatar's first satellite flew as a joint project with the French corporation Eutelsat Qatar: Es'hail 1: Es'hailSat: SS/Loral: Ariane 5ECA: Kourou: 29 August 2013: Full ownership of the joint France-Qatar satellite Eutelsat 25B / Es'hail 1 was sold to Es'hailsat in 2018 [24] Peru: PUCP-Sat 1: Dnepr: Dombarovsky: 21 November 2013: Pocket-PUCP ...
The formerly Soviet, and now Russian, Global'naya Navigatsionnaya Sputnikovaya Sistema, (GLObal NAvigation Satellite System or GLONASS), is a space-based satellite navigation system that provides a civilian radionavigation-satellite service and is also used by the Russian Aerospace Defence Forces. GLONASS has full global coverage since 1995 and ...
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