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Ekspress AM6
Ekspress-AM6 ( meaning ''Express-AM6'') is a Russian communications satellite which was launched in 2014. The satellite has replaced the older Ekspress-AM22, at 53° East. Part of the Ekspress series of geostationary communications satellites, it is owned and operated by the Russian Satellite Communications Company (RSCC). Satellite description The satellite has 14 C-band, 44 Ku-band, 12 Ka-band and 2 L-band transponders. Launch The satellite was launched on a Proton-M / Briz-M launch vehicle from Baikonur Cosmodrome. The Briz-M upper stage shut down too early in the fourth burn and left the satellite in a lower than planned orbit. The satellite reached the operational geostationary orbit by using its own propulsion. List of providers Eutelsat 53A Five transponders are leased to Eutelsat and are marketed under the name Eutelsat 53A since May 2015. See also * Ekspress Ekspress ( meaning Express), is a series of geostationary communications satellites owned b ... [...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 (satellite communications), transponder; it creates a communication channel between a source transmitter and a Radio receiver, 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 radio waves used for telecommunications links travel by Line-of-sight propagation, line of sight and so are obstructe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ku Band
The Ku band () is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz). The symbol is short for "K-under" (originally ), because it is the lower part of the original NATO K band, which was split into three bands (Ku, K, and Ka) because of the presence of the atmospheric water vapor resonance peak at 22.24 GHz, (1.35 cm) which made the center unusable for long range transmission. In radar applications, it ranges from 12 to 18 GHz according to the formal definition of radar frequency band nomenclature in IEEE Standard 521–2002. Ku band is primarily used for satellite communications, most notably the downlink used by direct broadcast satellites to broadcast satellite television, and for specific applications such as NASA's Tracking Data Relay Satellite used for International Space Station (ISS) communications and SpaceX Starlink satellites. Ku band satellites are also used for backhauls and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ekspress Satellites
Ekspress ( meaning Express), is a series of geostationary communications satellites owned by Russian Satellite Communications Company (RSCC). The first satellite of this kind was launched on 13 October 1994. The satellites are produced by the company Information Satellite Systems Reshetnev (ISS Reshetnev). Overview The Ekspress series of communication satellites (industry code 11F639) was developed by the satellite company Information Satellite Systems Reshetnev, NPO PM as a replacement for the old Gorizont series of comsats. The first satellite of the series, Ekspress 1, was launched in 1994. It had a mass of 2500 kg, 17 channels and an operational lifetime of at 5–7 years. Starting in the mid-1990s, NPO PM started to make significant effort to close the technology gap between Russian and Western communication satellites. Cooperation with the French company Alcatel (now Thales Alenia Space) was begun in 1995. The first satellite of a new second series, Ekspress A-1, ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutelsat
Eutelsat S.A. is a French satellite operator. Providing coverage over the entire European continent, the Middle East, Africa, Asia and the Americas, it has been the world's third-largest satellite operator in terms of revenues. Its subsidiary Eutelsat OneWeb is a competitor to Elon Musk's Starlink. Eutelsat's satellites are used for broadcasting nearly 7,000 television stations, of which 1,400 are in high-definition television, and 1,100 radio stations to over 274 million cable and satellite homes. They also serve requirements for TV contribution services, corporate networks, mobile communications, Internet backbone connectivity and broadband access for terrestrial, maritime and in-flight applications. Eutelsat is headquartered in Paris, France. Eutelsat Communications Chief Executive Officer is currently Eva Berneke. In October 2017, Eutelsat acquired Noorsat, one of the leading satellite service providers in the Middle East, from Bahrain's Orbit Holding Group. Noorsat is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wide Network Solutions
{{Disambiguation, callsign ...
WIDE or Wide may refer to: *Wide (cricket), a type of illegal delivery to a batter *Wide and narrow data, terms used to describe two different presentations for tabular data *WIDE Project, Widely Integrated Distributed Environment *Wide-angle Infinity Display Equipment *WIDE-LP, a radio station (99.1 FM) licensed to Madison, Wisconsin *Women in Development Europe; see * wide (tennis), meaning beyond the sidelines People with the name Wide *Ernst Wide (1888–1950), a Swedish Olympic long-distance runner *Edvin Wide (1896–1996), a Swedish Olympic long-distance runner *Samuel Wide (1861–1918), a Swedish archaeologist See also * * * *Widen *Width (other) Width is a measure of distance from side to side, measuring across an object at right angles to the length. Width may also refer to: Graph theory * Width of a partial order - the cardinality of a maximum antichain. * Width of a tree decomposit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multistage Rocket
A multistage rocket or step rocket is a launch vehicle that uses two or more rocket ''stages'', each of which contains its own engines and propellant. A ''tandem'' or ''serial'' stage is mounted on top of another stage; a ''parallel'' stage is attached alongside another stage. The result is effectively two or more rockets stacked on top of or attached next to each other. Two-stage rockets are quite common, but rockets with as many as five separate stages have been successfully launched. By jettisoning stages when they run out of propellant, the mass of the remaining rocket is decreased. Each successive stage can also be optimized for its specific operating conditions, such as decreased atmospheric pressure at higher altitudes. This ''staging'' allows the thrust of the remaining stages to more easily accelerate the rocket to its final velocity and height. In serial or tandem staging schemes, the first stage is at the bottom and is usually the largest, the second stage and subse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Launch Vehicle
A launch vehicle is typically a rocket-powered vehicle designed to carry a payload (a crewed spacecraft or satellites) from Earth's surface or lower atmosphere to outer space. The most common form is the ballistic missile-shaped multistage rocket, but the term is more general and also encompasses vehicles like the Space Shuttle. Most launch vehicles operate from a launch pad, supported by a missile launch control center, launch control center and systems such as vehicle assembly and fueling. Launch vehicles are engineered with advanced aerodynamics and technologies, which contribute to high operating costs. An orbital spaceflight, orbital launch vehicle must lift its payload at least to the boundary of space, approximately and accelerate it to a horizontal velocity of at least . Suborbital spaceflight, Suborbital vehicles launch their payloads to lower velocity or are launched at elevation angles greater than horizontal. Practical orbital launch vehicles use chemical prope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ekspress-AM22
Ekspress-AM22 (, meaning ''Express-AM22'') is a Russian communications satellite. It belongs to the Russian Satellite Communications Company (RSCC) based in Moscow, Russia. Eutelsat SESAT-2 The satellite has a total of 24 transponders, 12 of which are referred to as SESAT-2, and are leased to Eutelsat by the Russian Satellite Communications Company (RSCC). The remaining 12 transponders, with domestic coverage of the Russian Federation, are commercialised by the RSCC under the name Ekspress-AM22. Launch Ekspress-AM22 was launched by Khrunichev State Research and Production Space Center, using a Proton-K / DM-02 launch vehicle. The launch took place at 23:00:00 UTC on 28 December 2003, from Site 200/39 at Baikonur Cosmodrome, Kazakhstan. Successfully deployed into geostationary transfer orbit (GTO), Ekspress-AM22 raised itself into an operational geostationary orbit using its apogee motor. Mission The satellite can be received in Europe, Asia, the Middle East and the mos ... [...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 (satellite communications), transponder; it creates a communication channel between a source transmitter and a Radio receiver, 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 radio waves used for telecommunications links travel by Line-of-sight propagation, line of sight and so are obstructe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ekspress-AM7
Ekspress-AM7 ( meaning ''Express-AM7'') is a Russian communications satellite operated by the Russian Satellite Communications Company (RSCC). Satellite description EADS Astrium, was contracted in March 2012, which had become part of Airbus Defence and Space by the time of the satellite's launch, constructed Ekspress-AM7, which was based on the Eurostar-3000 satellite bus. The satellite has a mass of , provides 18 kilowatts to its payload, and a planned operational lifespan of 15 years. The satellite carried 62 transponders: 24 operating in the C-band of the electromagnetic spectrum, 36 in the Ku-band and 2 in the L-band. It is a replacemt for Ekspress-AM1. Launch Khrunichev was contracted to launch Ekspress-AM7, using a Proton-M / Briz-M launch vehicle - the same configuration that had failed to deploy the similar Ekspress-AM4 and Ekspress-AM4R. The launch took place from Site 200/39 at the Baikonur Cosmodrome, at 22:05:00 UTC on 18 March 2015. The satellite was deploye ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ekspress-AM4R
Ekspress-AM4R ( meaning ''Express-AM4R'') was a Russian communications satellite intended for operation by the Russian Satellite Communications Company (RSCC). Constructed as a replacement for Ekspress-AM4, which was left unusable after the Briz (rocket stage), upper stage of the launch vehicle carrying it malfunctioned, Ekspress-AM4R was also lost due to a launch failure. Satellite description Astrium, which had become part of Airbus Defence and Space by the time of the satellite's launch, constructed Ekspress-AM4R, which was based on the Eurostar E3000, Eurostar-3000 satellite bus. It was identical in design to Ekspress-AM4, with a mass of and a planned operational lifespan of fifteen years. The satellite carried sixty-three Transponder (satellite communications), transponders: thirty operating in the C band (IEEE), C-band of the electromagnetic spectrum, twenty eight in the Ku band, Ku-band, two in the Ka band, Ka-band and three in the L band, L-band. It was to have been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Ekspress Satellites
Ekspress (Russian: , ''literally'' Express) is a communication and broadcasting system developed and operated by Russian Satellite Communications Company (RSCC). It is the largest network of Russia and its slots cover an arc in geostationary orbit from 14.0° West to 145.0° East. This allows it to cover the whole territory of Russia, the CIS, Europe, the Middle East, Africa, the Asia-Pacific region, North and South America, and Australia. The only other Russian civilian satellite operator is Gazprom Space Systems with its Yamal constellation. Ekspress satellite series While the Ekspress constellation started with a single model, during the years it has used many suppliers and many models. See also * Telecommunications in Russia * Russian Satellite Communications Company – Satellite communication company of the Ministry of Telecom and Mass Communications of the Russian Federation and owner of the Ekspress satellite series. * Gazprom Space Systems – Satellite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
