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{{short description|Use of satellite signals for geo-spatial positioning}} | {{short description|Use of satellite signals for geo-spatial positioning}} | ||
{{For| | {{For|maneuvering satellites to maintain orbit and station|Orbital station-keeping}} | ||
[[File:GPS Block IIIA.jpg|thumb|The [[U.S. Space Force]]'s [[Global Positioning System]] was the first global satellite navigation system and was the first to be provided as a free global service.]] | [[File:GPS Block IIIA.jpg|thumb|The [[U.S. Space Force]]'s [[Global Positioning System]] was the first global satellite navigation system and was the first to be provided as a free global service.]] | ||
{{Spaceflight sidebar}} | {{Spaceflight sidebar}} | ||
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First launch year: 1982 | First launch year: 1982 | ||
The formerly [[Soviet Union|Soviet]], and now [[Russia]]n, '''''Glo'''bal'naya '''Na'''vigatsionnaya '''S'''putnikovaya '''S'''istema'', (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 with 24 satellites. | The formerly [[Soviet Union|Soviet]], and now [[Russia]]n, '''''Glo'''bal'naya '''Na'''vigatsionnaya '''S'''putnikovaya '''S'''istema'', (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 with 24 active satellites. | ||
===BeiDou=== | ===BeiDou=== | ||
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==See also== | ==See also== | ||
{{div col|colwidth=20em}} | {{div col|colwidth=20em}} | ||
*[[Acronyms and abbreviations in avionics]] | *[[Acronyms and abbreviations in avionics]] | ||