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An amateur radio satellite is an artificial satellite built and used by amateur radio operators for use in the amateur radio satellite service.
A communications satellite or comsat is an artificial satellite sent to space for the purpose of telecommunications.
A geosynchronous orbit is an orbit around the Earth with an orbital period of one sidereal day, intentionally matching the Earth’s sidereal rotation period.
Globalstar is a low Earth orbit satellite constellation for satellite phone and low-speed data communications, similar to the Iridium and Orbcomm satellite systems.
Inmarsat is a British satellite telecommunications company, offering global mobile services via portable or mobile terminals.
Intelsat is an intergovernmental consortium owning and managing a constellation of communications satellites for international broadcast services.
The Iridium satellite constellation is a large group of satellites providing worldwide voice and data coverage to satellite phones, pagers and integrated transceivers.
Satellites that provide autonomous geo-spatial positioning with global coverage.
ORBCOMM is a company that offers M2M global asset monitoring and messaging services from its constellation of 29 LEO communications satellites orbiting at 775 km.
A space station is a spacecraft capable of supporting a crew for an extended period of time and for other spacecraft to dock.
Satellites that are visible to ground observers with the unaided eye.
Primarily used to monitor the weather and climate of the Earth. Satellites can be polar orbiting, covering the entire Earth asynchronously, or geostationary.