The first man-made object to successfully be placed in Earth orbit was dubbed "Sputnik".
It was launched from the Baikonur Cosmodrome in Kazakhstan ... part of the USSR at
the time ... on October 4, 1957.
IT was launched from a space station situated in kapustin which was at that time in USSR (now russia)
The first orbiting space station was Salyut 1, launched by the Soviet Union in 1971.
the look angles are the angles to which an earth station must be pointed to communicate with the geosynchronous satellite
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united states of america
Nasa lunched Expedition 21 Soyuz Launch to International Space Station September 30
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Russia
The Soviet Union launched the Mir space station in 1986. It was the first modular space station and operated for 15 years, welcoming crews from various countries for scientific research and experiments in low Earth orbit.
Satellites communicate data to ground stations using radio frequency (RF) signals. These signals are transmitted from the satellite's onboard antennas, which send data to the ground station's receiving antennas. The data is typically encoded and modulated to ensure efficient transmission and is then decoded and processed by ground station equipment for analysis and use. This communication can occur in various frequency bands, depending on the satellite's design and mission requirements.
A space station is a satellite.
The Mir was launched by the Soviet Union.