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Yamal 102
Yamal-102 (Russian language, Russian: ) was a geostationary orbit, geostationary communications satellite operated by Gazprom Space Systems, Gazkom and built by Energia (corporation), RSC Energia. It was, along with Yamal-101 the first communications satellite of the Yamal (satellite constellation), Yamal programme and the first iteration of the USP (satellite bus), USP Bus. It was a satellite with 2200 watts of power (1300 watts available for the payload) on an unpressurized bus. It had eight SPT-100, SPT-70 Electrically powered spacecraft propulsion, electric thrusters by OKB Fakel for Orbital station-keeping, station keeping. Its payload was 12 C band (IEEE), C-band equivalent Transponder (satellite communications), transponders supplied by SSL (company), Space Systems/Loral. History It was launched along Yamal-101 on 6 September 1999 at 16:36:00 Coordinated Universal Time, UTC from Baikonur Cosmodrome, Baikonur Baikonur Cosmodrome Site 81, Site 81/23 by a Proton-K / Blok ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications 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 applications. Many communications satellites are in geostationary orbit above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently. The high frequency radio waves used for telecommunications links travel by line of sight and so are obstructed by the curve of the Earth. The purpose of communications ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
