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A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military ...
The Prospero satellite, also known as the X-3, [2] was launched by the United Kingdom in 1971. It was designed to undertake a series of experiments to study the effects of the space environment on communications satellites and remained operational until 1973, after which it was contacted annually for over 25 years. [3]
Artificial satellites and space probes in the 1970s Year Origin Name Target Status Description 1970 Japan: Ohsumi: Earth: Success: First Japanese satellite. Japan became the fourth nation after the USSR, USA and France to successfully put an artificial satellite into orbit on its own. West Germany: DIAL Earth Success Second German satellite.
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military ...
Proba-3 is a first-of-its-kind mission to position spacecraft to within 1 millimetre precision
The term "small satellite", [2] or sometimes "minisatellite", often refers to an artificial satellite with a wet mass (including fuel) between 100 and 500 kg (220 and 1,100 lb), [9] [10] but in other usage has come to mean any satellite under 500 kg (1,100 lb).
Oldest artificial satellite in orbit, along with its upper stage. Explorer 3: United States: 26 March 1958: U.S. Army Ballistic Missile Agency: Decayed 28 June 1958. Vanguard TV-5: United States: 29 April 1958: U.S. Naval Research Laboratory: Failed to orbit. Sputnik 3: Soviet Union: 15 May 1958: Korolev Design Bureau: Decayed 6 April 1960 ...
A pair of European satellites rocketed into orbit Thursday on the first mission to create artificial solar eclipses through fancy formation flying in space. “We are a very happy science team ...