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Koreasat
Koreasat is a series of South Korean communications satellites operated by KT SAT, a subsidiary of KT Corporation KT Corporation (Hangul: 주식회사 케이티), formerly Korea Telecom, is a South Korean telecommunications company. KT is the second-largest wireless carrier in South Korea, with 16.493 million subscribers as of Q4 2017. The formerly fully .... Some satellites were sold to other operators. Satellites References {{South Korean Space Program Communications satellites Satellites of South Korea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koreasat 1
Koreasat 1 was a South Korean communications satellite launched by a Delta II rocket from Cape Canaveral Air Force Station, Florida, United States. Owned by KT Corporation. One of the boosters of the Delta II rocket failed to separate from the first stage of the spacecraft, placing it 5,000 km short of its planned GTO apogee. The satellite had to use up 7.5 years worth of its 12-year lifetime fuel supply to make up the deficiency, shortening Koreasat 1's expected life to about 4.5 years. In order to extend its lifetime, it gave up north–south station-keeping operating in "inclined mode." In the end, the satellite managed to function for 10 years. The satellite was equipped with a Star 30 solid apogee motor. It carried of fuel for the apogee motor and of hydrazine propellant. It was eventually positioned in geosynchronous orbit at 116° E operated it at 47.5° E where it was focused on Hungary. The satellite went out of service on December 16, 2005, and was moved to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koreasat 7
Koreasat 7 (also known as Mugunghwa 7) is a South Korean communications satellite operated by KT SAT, a subsidiary of KT Corporation. Thales Alenia Space was contracted in 2014 to build both it and Koreasat 5A. Koreasat 7A was launched into geosynchronous orbit on 4 May 2017 aboard an Ariane 5 ECA launch vehicle and placed at 116 degrees east longitude to provide coverage over East Asia East Asia is the eastern region of Asia, which is defined in both Geography, geographical and culture, ethno-cultural terms. The modern State (polity), states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. .... References Communications satellites Satellites of South Korea Spacecraft launched in 2017 2017 in South Korea Satellites using the A2100 bus {{communications-satellite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koreasat 5A
Koreasat 5A is a South Korean communications satellite operated by KT SAT, a subsidiary of KT Corporation. On 30 October 2017, it was launched on Falcon 9 ( "Full Thrust" version) rocket A rocket (from it, rocchetto, , bobbin/spool) is a vehicle that uses jet propulsion to accelerate without using the surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely fr .... References Communications satellites in geostationary orbit Satellites of South Korea Spacecraft launched in 2017 2017 in South Korea Satellites using the Spacebus bus SpaceX commercial payloads {{communications-satellite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KT Corporation
KT Corporation (Hangul: 주식회사 케이티), formerly Korea Telecom, is a South Korean telecommunications company. KT is the second-largest wireless carrier in South Korea, with 16.493 million subscribers as of Q4 2017. The formerly fully-state-owned firm (the government's National Pension Service currently owns 12.19% shares and is the largest shareholder) is South Korea's first telecommunications company and is a major supplier of the local landline and broadband internet market, serving about 90 percent of the country's fixed-line subscribers and 45 percent of high-speed Internet users. After selling its wireless affiliate Korea Mobile Telecom in 1994, KT returned to the wireless market with the creation of PCS carrier KTF in January 1997. The company's merger with KTF, its wireless subsidiary, in 2009 made it the country's ninth largest chaebol (conglomerate) with nearly 24 trillion won in assets as of 2009. In January 2011, KT launched unified brand "Olleh" for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koreasat 6
Koreasat 6 is a South Korean communications satellite operated by Koreasat. Koreasat 6 is the second satellite launched by operator KT (Korea Telecom) Corporation which weighed about 2750 kg at the launching time. This satellite orbital position at 116 degrees East and provides broadcasting services and telecommunications throughout Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o .... References Communications satellites Satellites of South Korea Spacecraft launched in 2010 2010 in South Korea {{communications-satellite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ANASIS-II
ANASIS-II (Army Navy Air Force Satellite Information System-II), formerly called "KMilSatCom 1", is a South Korean military/government communications satellite which was launched on 20 July 2020. It was built by Airbus Defence and Space as part of an offset package into the purchase of 40 F-35 combat aircraft. Launch The Payload was launched aboard a reused 1st stage booster, B1058 featuring the NASA "worm" logo, which previously launched SpaceX DM-2. After stage separation it successfully landed aboard the drone ship '' Just Read the Instructions'' in the Atlantic Ocean. Both fairing halves were successfully caught by recovery ships ''Ms. Tree'' and ''Ms. Chief'', making it the first successful catch attempt in which both halves were caught for reuse. Operation In October 2020, the Chosun Ilbo reported that Korean Armed Forces had not developed the ground segment of ANASIS-II yet. It is likely that ANASIS-II will not be utilized for more than a year. See also * Koreasat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta II 7925
Delta II was an expendable launch system, originally designed and built by McDonnell Douglas. Delta II was part of the Delta rocket family and entered service in 1989. Delta II vehicles included the Delta 6000, and the two later Delta 7000 variants ("Light" and "Heavy"). The rocket flew its final mission ICESat-2 on 15 September 2018, earning the launch vehicle a streak of 100 successful missions in a row, with the last failure being GPS IIR-1 in 1997. History In the early 1980s, all United States expendable launch vehicles were planned to be phased out in favor of the Space Shuttle, which would be responsible for all government and commercial launches. Production of Delta, Atlas-Centaur, and Titan 34D had ended. The ''Challenger'' disaster of 1986 and the subsequent halt of Shuttle operations changed this policy, and President Ronald Reagan announced in December 1986 that the Space Shuttle would no longer launch commercial payloads, and NASA would seek to purchase launches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Delta II
Delta II was an expendable launch system, originally designed and built by McDonnell Douglas. Delta II was part of the Delta rocket family and entered service in 1989. Delta II vehicles included the Delta 6000, and the two later Delta 7000 variants ("Light" and "Heavy"). The rocket flew its final mission ICESat-2 on 15 September 2018, earning the launch vehicle a streak of 100 successful missions in a row, with the last failure being GPS IIR-1 in 1997. History In the early 1980s, all United States expendable launch vehicles were planned to be phased out in favor of the Space Shuttle, which would be responsible for all government and commercial launches. Production of Delta, Atlas-Centaur, and Titan 34D had ended. The ''Challenger'' disaster of 1986 and the subsequent halt of Shuttle operations changed this policy, and President Ronald Reagan announced in December 1986 that the Space Shuttle would no longer launch commercial payloads, and NASA would seek to purchase launches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ariane 5
Ariane 5 is a European heavy-lift space launch vehicle developed and operated by Arianespace for the European Space Agency (ESA). It is launched from the Centre Spatial Guyanais (CSG) in French Guiana. It has been used to deliver payloads into geostationary transfer orbit (GTO) or low Earth orbit (LEO). The launch vehicle had a streak of 82 consecutive successful launches between 9 April 2003 and 12 December 2017. Since 2014, Ariane 6, a direct successor system, is in development. The system was designed as an expendable launch system by the ''Centre national d'études spatiales'' (CNES), the French government's space agency, in cooperation with various European partners. Despite not being a direct derivative of its predecessor launch vehicle program, it is classified as part of the Ariane rocket family. ArianeGroup is the prime contractor for the manufacturing of the vehicles, leading a multi-country consortium of other European contractors. Ariane 5 was originally intende ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koreasat 5
Koreasat 5 (also known as ANASIS-I (Army Navy Air Force Satellite Information System-I) and Mugunghwa 5 (무궁화 5호)) is a South Korean communications satellite operated by Koreasat. See also Korea Aerospace Research Institute The Korea Aerospace Research Institute (KARI), established in 1989, is the aeronautics and space agency of South Korea. Its main laboratories are located in Daejeon, in the Daedeok Science Town. KARI's vision is to continue building upon indig ... (KARI) Communications satellites in geostationary orbit Satellites of South Korea Spacecraft launched in 2006 2006 in spaceflight 2006 in South Korea Satellites using the Spacebus bus Spacecraft launched by Zenit and Energia rockets {{communications-satellite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABS-7
ABS-7 was a geostationary communication 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. C ... operated by ABS (formerly known as Asia Broadcast Satellite) which was designed and manufactured by Lockheed Martin on the A2100 platform. It featured 30 Ku-band and 3 Ka-band transponders to serve Afghanistan, the Middle East, and Pakistan operating from 116.1EL. In May 2010, the satellite was sold to ABS and renamed into ''ABS-7''. Its original name was Koreasat 3. The satellite was de-orbited from the geostationary arc and retired on February 16, 2022. References Communications satellites Spacecraft launched in 1999 1999 in spaceflight Satellites using the A2100 bus {{communications-satellite-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia, constituting the southern part of the Korea, Korean Peninsula and sharing a Korean Demilitarized Zone, land border with North Korea. Its western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. South Korea claims to be the sole legitimate government of the entire peninsula and List of islands of South Korea, adjacent islands. It has a Demographics of South Korea, population of 51.75 million, of which roughly half live in the Seoul Capital Area, the List of metropolitan areas by population, fourth most populous metropolitan area in the world. Other major cities include Incheon, Busan, and Daegu. The Korean Peninsula was inhabited as early as the Lower Paleolithic period. Its Gojoseon, first kingdom was noted in Chinese records in the early 7th century BCE. Following the unification of the Three Kingdoms of Korea into Unified Silla, Silla and Balhae in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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