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AMC-14
AMC-14 is a communications satellite. Initially owned by SES Americom, AMC-14 was designed to be placed in geostationary orbit, following launch on a Proton-M / Briz-M space vehicle. Built by Lockheed Martin and based on the A2100 satellite bus, AMC-14 was to have been located at 61.5° West longitude for Dish Network service. It was launched atop a Proton-M / Briz-M launch vehicle at 23:18:55 UTC on 14 March 2008, from Site 200/39 at the Baikonur Cosmodrome in Kazakhstan. The satellite was placed in an unusable orbit, following a malfunction of the Briz-M upper stage. Over a six-month period, it was maneuvered into a geosynchronous orbit, and is now near 35° East and in an inclined orbit. Satellite description AMC-14 is based on the Lockheed Martin A2100 satellite bus, and includes 32 Ku-band transponders to provide 24 MHz of bandwidth each. The spacecraft antenna were originally designed to operate over either of two orbital arcs: 61.5° West to 77° West or 110° West ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Briz (rocket Stage)
The Briz-K, Briz-KM and Briz-M (russian: Бриз-К, КM and M meaning ''Breeze-K, KM and M'') are Russian liquid-propellant rocket orbit insertion upper stages manufactured by Khrunichev State Research and Production Space Center and used on the Proton-M and Angara A5. The upper stages were also used on Rokot, one of Russia's smaller launchers, before its retirement in 2019. Characteristics Briz-K and Briz-KM Briz-K, GRAU index 14S12, is a single-piece structure with a conical tank compartment and the engine located in a recess in the fuel tank. Briz-KM (GRAU index 14S45) is an improved version of Briz-K. The Briz-K and Briz-KM were used as a third stage of the Rokot launch vehicles. Briz-M Briz-M, GRAU index 14S43, is designed for injecting large payloads into a low, medium-height or high geosynchronous orbit. Briz-M is a twin upper stage consisting of a core module (using Briz-KM as the baseline) and a jettisonable add-on toroidal tank surrounding the core. It is po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proton-M
The Proton-M, (Протон-М) GRAU index 8K82M or , is an expendable Russian heavy-lift launch vehicle derived from the Soviet-developed Proton. It is built by Khrunichev, and launched from sites 81 and 200 at the Baikonur Cosmodrome in Kazakhstan. Commercial launches are marketed by International Launch Services (ILS), and generally use Site 200/39. The first Proton-M launch occurred on 7 April 2001. Proton flew its most recent mission on 13 December 2021, launching two Ekspress communication satellites into geostationary orbit. As of August 2020, a number of Roscosmos and other Russian government missions remain on Proton launch manifest. Vehicle description The Proton-M launch vehicle consists of three stages; all of them powered by liquid rocket engines using the hypergolic propellant combination of dinitrogen tetroxide as the oxidizer, and unsymmetrical dimethylhydrazine for fuel. The first stage is unique in that it consists of a central cylindrical oxidizer tank ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SES Americom
SES Americom was a major commercial satellite operator of North American geosynchronous satellites based in the United States. The company started as RCA Americom in 1975 before being bought by General Electric in 1986 and then later acquired by SES S.A. in 2001. In September 2009, SES Americom and SES New Skies merged into SES World Skies. History RCA American Communications (RCA Americom) was founded in 1975 as an operator of RCA Astro Electronics-built satellites. The company's first satellite; Satcom 1, was launched on 12 December 1975. Satcom 1 was one of the earliest geostationary satellites. Satcom 1 was instrumental in helping early cable TV channels (such as Superstation TBS and CBN) to become initially successful, because these channels distributed their programming to all of the local cable TV headends using the satellite. Additionally, it was the first satellite used by broadcast TV networks in the United States, like American Broadcasting Company (ABC), NBC, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khrunichev State Research And Production Space Center
The Khrunichev State Research and Production Space Center (''Государственный космический научно-производственный центр (ГКНПЦ) имени М. В. Хру́ничева'' in Russian) is a Moscow-based manufacturer of spacecraft and space-launch systems, including the Proton and Rokot rockets, and the Russian modules of Mir and the International Space Station. The company's history dates back to 1916, when an automobile factory was established at Fili, western suburb of Moscow. It soon switched production to airplanes and during World War II produced Ilyushin Il-4 and Tupolev Tu-2 bombers. A design bureau, OKB-23, was added to the company in 1951. In 1959, the company started developing intercontinental ballistic missiles, and later spacecraft and space launch vehicles. The company designed and produced all Soviet space stations, including Mir. OKB-23, renamed to ''Salyut Design Bureau'', became an independent company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AMC-15 (satellite)
AMC-15 is an American communications satellite. Owned by SES Americom, AMC-15 was designed to be placed in geostationary orbit, following launch on a Proton-M / Briz-M space vehicle. Satellite description Built by Lockheed Martin and based on the A2100AXS satellite bus, AMC-15 is located at 105° West longitude for EchoStar. AMC-15 has 24 Ku-band and 12 Ka-band transponders covering United States (including Hawaii and Alaska), part of Canada and Mexico. Leased to Echostar Satellite Services. Launch It was launched atop a Proton-M / Briz-M launch vehicle at 21:23:00 UTC on 14 October 2004, from Site 200/39 at the Baikonur Cosmodrome in Kazakhstan. AMC-15 is completely leased to EchoStar Satellite Services. See also * 2004 in spaceflight This article outlines notable events occurring in 2004 in spaceflight Spaceflight (or space flight) is an application of astronautics to fly spacecraft into or through outer space, either with or without humans on board. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockheed Martin A2100
The A2100 is a model of communications satellite spacecraft made by Lockheed Martin Space Systems. It is used as the foundation for telecommunications payloads in geosynchronous orbit, as well as GOES-R weather satellites and GPS Block IIIA satellites. Over 40 satellites use the A2100 bus. History The first satellite, AMC-1, was launched September 8, 1996, and has achieved 15-year on-orbit service life. Since 1996 there have been over 45 of the A2100 based satellites launched, with over 400 years of total on-orbit service. Other A2100 spacecraft include JCSAT-13 and VINASAT-2, which were launched May, 2012 on an Ariane 5 rocket, as well as Arabsat-6A and Hellas Sat 4/SaudiGeoSat-1 of Saudi Arabia's Arabsat-6G program. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AMC-12 (satellite)
AMC-12 (formerly GE-1i) is an American geostationary communications satellite that was launched by a Proton-M / Briz-M launch vehicle at 02:27:32 UTC on 3 February 2005. The satellite to provide voice and video services to the North America and South America, Europe, and Africa through separate beams to each region, after parking over the Atlantic Ocean through its 72 C-band transponders, over 37° West longitude. Worldsat 2 In early 2004, AMC 12 was transferred to Worldsat LLC, a new subsidiary of SES Americom as Worldsat 2. In early 2005, few weeks before launch, it was renamed AMC 12 again. Astra 4A 24 transponders on AMC 12 have been contracted by SES Astra which to market this capacity in Africa under the name Astra 4A. Star One C12 18 transponders are operated by Star One as Star One C12 for Europe. NSS 10 In March 2009, the satellite was transferred to SES New Skies SES World Skies was a short lived company formed as a result of the merger between the t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PAS-22
AsiaSat 3, previously known as HGS-1 and then PAS-22, was a geosynchronous communications satellite, which was salvaged from an unusable geosynchronous transfer orbit (GTO) by means of the Moon's gravity. Launch of AsiaSat 3 AsiaSat 3 was launched for AsiaSat of Hong Kong to provide communications and television services in Asia by a Proton-K / DM-2M launch vehicle on 24 December 1997, destined for an orbital position at 105.5° East. However, a failure of the Blok DM-2M fourth stage left it stranded in a highly inclined (51.6°) and elliptical orbit, although still fully functional. It was declared a total loss by its insurers. HGS-1 The satellite was transferred to Hughes Global Services Inc., which was then a subsidiary of Hughes Space and Communications, with an agreement to share any profits with the consortium of 27 insurers. Edward Belbruno and Rex Ridenoure heard about the problem and proposed a 3–5 month low-energy transfer trajectory that would swing past t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geosynchronous Orbit
A geosynchronous orbit (sometimes abbreviated GSO) is an Earth-centered orbit with an orbital period that matches Earth's rotation on its axis, 23 hours, 56 minutes, and 4 seconds (one sidereal day). The synchronization of rotation and orbital period means that, for an observer on Earth's surface, an object in geosynchronous orbit returns to exactly the same position in the sky after a period of one sidereal day. Over the course of a day, the object's position in the sky may remain still or trace out a path, typically in a figure-8 form, whose precise characteristics depend on the orbit's inclination and eccentricity. A circular geosynchronous orbit has a constant altitude of . A special case of geosynchronous orbit is the geostationary orbit, which is a circular geosynchronous orbit in Earth's equatorial plane with both inclination and eccentricity equal to 0. A satellite in a geostationary orbit remains in the same position in the sky to observers on the surface. Communicat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dish Network
DISH Network Corporation (DISH, an acronym for DIgital Sky Highway) is an American television provider and the owner of the direct-broadcast satellite provider Dish, commonly known as Dish Network, and the over-the-top IPTV service, Sling TV. Additionally, Dish offers mobile wireless service, Dish Wireless. On July 1, 2020, Dish acquired prepaid service Boost Mobile and intends to add postpaid service as well in the future. Based out of unincorporated Douglas County, Colorado the company has approximately 16,000 employees. History In January 2008, EchoStar Communications Corporation, which was founded by Charlie Ergen as a satellite television equipment distributor in 1980, changed its name to DISH Network Corporation and spun off its technology arm as a new company named EchoStar Corporation. The company had begun using DISH Network as its consumer brand in 1996, after the launch of its first satellite, EchoStar I, in December 1995. That launch marked the beginning of its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kazakhstan
Kazakhstan, officially the Republic of Kazakhstan, is a transcontinental country located mainly in Central Asia and partly in Eastern Europe. It borders Russia to the north and west, China to the east, Kyrgyzstan to the southeast, Uzbekistan to the south, and Turkmenistan to the southwest, with a coastline along the Caspian Sea. Its capital is Astana, known as Nur-Sultan from 2019 to 2022. Almaty, Kazakhstan's largest city, was the country's capital until 1997. Kazakhstan is the world's largest landlocked country, the largest and northernmost Muslim-majority country by land area, and the ninth-largest country in the world. It has a population of 19 million people, and one of the lowest population densities in the world, at fewer than 6 people per square kilometre (15 people per square mile). The country dominates Central Asia economically and politically, generating 60 percent of the region's GDP, primarily through its oil and gas industry; it also has vast mineral ... [...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 speed and height. In serial or tandem staging schemes, the first stage is at the bottom and is usually the largest, the second stage and subseq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
