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Deorbit Of Mir
The Russian space station ''Mir'' ended its mission on 23 March 2001, when it was brought out of its orbit, entered the atmosphere and was destroyed. Major components ranged from about 5 to 15 years in age, and included the Mir Core Module, Kvant-1, Kvant-2, Kristall, Spektr, Priroda, and Docking Module. Although Russia was optimistic about ''Mirs future, the country's commitments to the International Space Station programme left no funding to support ''Mir''. The deorbit was carried out in three stages. The first stage was waiting for atmospheric drag to decay the orbit to an average of . This began with the docking of Progress M1-5. The second stage was the transfer of the station into a orbit. This was achieved with two burns of the Progress M1-5's control engines at 00:32 UTC and 02:01 UTC on 23 March 2001. After a two-orbit pause, the third and final stage of ''Mirs deorbit began with the firing of Progress M1-5's control engines and main engine at 05:08 UTC, lasting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Entry
Atmospheric entry is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite. There are two main types of atmospheric entry: ''uncontrolled entry'', such as the entry of astronomical objects, space debris, or bolides; and ''controlled entry'' (or ''reentry'') of a spacecraft capable of being navigated or following a predetermined course. Technologies and procedures allowing the controlled atmospheric ''entry, descent, and landing'' of spacecraft are collectively termed as ''EDL''. Objects entering an atmosphere experience atmospheric drag, which puts mechanical stress on the object, and aerodynamic heating—caused mostly by compression of the air in front of the object, but also by drag. These forces can cause loss of mass (ablation) or even complete disintegration of smaller objects, and objects with lower compressive strength can explode. Crewed space vehicles must be slowed to subsonic speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mir On 12 June 1998edit1
''Mir'' (russian: Мир, ; ) was a space station that operated in low Earth orbit from 1986 to 2001, operated by the Soviet Union and later by Russia. ''Mir'' was the first modular space station and was assembled in orbit from 1986 to 1996. It had a greater mass than any previous spacecraft. At the time it was the largest artificial satellite in orbit, succeeded by the International Space Station (ISS) after ''Mir'''s orbital decay, orbit decayed. The station served as a microgravity research laboratory in which crews conducted experiments in biology, human biology, physics, astronomy, meteorology, and spacecraft systems with a goal of developing technologies required for permanent occupation of Outer space, space. ''Mir'' was the first continuously inhabited long-term research station in orbit and held the record for the longest continuous human presence in space at 3,644 days, until it was surpassed by the ISS on 23 October 2010. It holds the record for the longes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perigee
An apsis (; ) is the farthest or nearest point in the orbit of a planetary body about its primary body. For example, the apsides of the Earth are called the aphelion and perihelion. General description There are two apsides in any elliptic orbit. The name for each apsis is created from the prefixes ''ap-'', ''apo-'' (), or ''peri-'' (), each referring to the farthest and closest point to the primary body the affixing necessary suffix that describes the primary body in the orbit. In this case, the suffix for Earth is ''-gee'', so the apsides' names are ''apogee'' and ''perigee''. For the Sun, its suffix is ''-helion'', so the names are ''aphelion'' and ''perihelion''. According to Newton's laws of motion, all periodic orbits are ellipses. The barycenter of the two bodies may lie well within the bigger body—e.g., the Earth–Moon barycenter is about 75% of the way from Earth's center to its surface. If, compared to the larger mass, the smaller mass is negligible (e.g., f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teleconference
A teleconference is the live exchange of information among several people remote from one another but linked by a telecommunications system. Terms such as audio conferencing, telephone conferencing and phone conferencing are also sometimes used to refer to teleconferencing. The telecommunications system may support the teleconference by providing one or more of the following: audio, video, and/or data services by one or more means, such as telephone, computer, telegraph, teletypewriter, radio, and television. Telcon is used as an abbreviation for both "telephone conference" and "telephone conversation". Internet teleconferencing Internet teleconferencing includes internet telephone conferencing, videotelephony Videotelephony, also known as videoconferencing and video teleconferencing, is the two-way or multipoint reception and transmission of audio and video signals by people in different locations for real time communication.McGraw-Hill Concise Ency ..., web conferencing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moscow
Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million residents within the city limits, over 17 million residents in the urban area, and over 21.5 million residents in the metropolitan area. The city covers an area of , while the urban area covers , and the metropolitan area covers over . Moscow is among the world's largest cities; being the most populous city entirely in Europe, the largest urban and metropolitan area in Europe, and the largest city by land area on the European continent. First documented in 1147, Moscow grew to become a prosperous and powerful city that served as the capital of the Grand Duchy that bears its name. When the Grand Duchy of Moscow evolved into the Tsardom of Russia, Moscow remained the political and economic center for most of the Tsardom's history. When th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ESOC
The European Space Operations Centre (ESOC) serves as the main mission control centre for the European Space Agency (ESA) and is located in Darmstadt, Germany. ESOC's primary function is the operation of unmanned spacecraft on behalf of ESA and the launch and early orbit phases (LEOP) of ESA and third-party missions. The Centre is also responsible for a range of operations-related activities within ESA and in cooperation with ESA's industry and international partners, including ground systems engineering, software development, flight dynamics and navigation, development of mission control tools and techniques and space debris studies. ESOC's current major activities comprise operating planetary and solar missions, such as Mars Express and the Trace Gas Orbiter, astronomy & fundamental physics missions, such as Gaia (spacecraft) and XMM Newton, and Earth observation missions such as CryoSat2 and Swarm (spacecraft). ESOC is responsible for developing, operating and maintaining E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salyut 7
Salyut 7 (russian: Салют-7; en, Salute 7) (a.k.a. DOS-6, short for Durable Orbital Station) was a space station in low Earth orbit from April 1982 to February 1991. It was first crewed in May 1982 with two crew via Soyuz T-5, and last visited in June 1986, by Soyuz T-15. Various crew and modules were used over its lifetime, including 12 crewed and 15 uncrewed launches in total. Supporting spacecraft included the Soyuz T, Progress (spacecraft), Progress, and TKS spacecraft. It was part of the Soviet Union, Soviet Salyut programme, and launched on 19 April 1982 on a Proton (rocket), Proton rocket from Baikonur Cosmodrome Site 200, Site 200/40 at the Baikonur Cosmodrome in the Soviet Union. Salyut 7 was part of the transition from monolithic to modular space stations, acting as a testbed for docking of additional modules and expanded station operations. It was the eighth space station of any kind launched. Salyut 7 was the last of both the second generation of DOS-series spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skylab
Skylab was the first United States space station, launched by NASA, occupied for about 24 weeks between May 1973 and February 1974. It was operated by three separate three-astronaut crews: Skylab 2, Skylab 3, and Skylab 4. Major operations included an orbital workshop, a solar observatory, Earth observation, and hundreds of experiments. Unable to be re-boosted by the Space Shuttle, which was not ready until 1981, Skylab's orbit eventually decayed, and it disintegrated in the atmosphere on July 11, 1979, scattering debris across the Indian Ocean and Western Australia. Overview Skylab was the only space station operated exclusively by the United States. A permanent station was planned starting in 1988, but funding for this was canceled and replaced with United States participation in an International Space Station in 1993. Skylab had a mass of with a Apollo command and service module (CSM) attached and included a workshop, a solar observatory, and several hundred life sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuri Koptev
Yuri Nikolayevich Koptev (russian: Юрий Николаевич Коптев, March 13, 1940, Voroshilovsk) is a former General Director of the Russian Space Agency (Roscosmos), serving in that role from 1992 to 2004. He was replaced in 2004 by Anatoly Perminov, a former commander of the Russian Space Forces. Beginning in 1965, he worked as an engineer at NPO Lavochkin. Koptev is a Winner of the Golden Space Medal FAI (2000), a State Councillor of the Russian Federation, 1st class and was awarded the Order "For Merit to the Fatherland", 2nd and 3rd classes. International sanctions On June 28, 2022, in connection with the ongoing Russian aggression in Ukraine, he was included in the US sanctions list as a person associated with an important state-owned company for the government and the military-technical complex of the Russian Federation - Rostec. References External links Conversations: Daniel S. Goldin and Yuri N. Koptev; Two Professional Cold Warriors Share a Vision of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mikhail Kasyanov
Mikhail Mikhailovich Kasyanov ( rus, link=no, Михаи́л Миха́йлович Касья́нов, , mʲɪxɐˈil mʲɪˈxajləvʲɪtɕ kɐˈsʲjanəf; born 8 December 1957) is a Russian politician who served as Prime Minister of Russia from 2000 to 2004. Previously, he had served as First Deputy Prime Minister in 2000 and Minister of Finance from 1999 to 2000. During the 1990s, he worked in President Boris Yeltsin's administration in different positions before joining President Vladimir Putin's first administration. Since leaving the government over disagreements on economic policy, he has become one of the leading critics of President Putin and an opposition leader. In 2008, Kasyanov was a candidate in the election of President of Russia but in the middle of the campaign was denied participation on political grounds. In 2010, he co-founded the coalition People's Freedom Party "For Russia without Lawlessness and Corruption" and became one of the leaders of the People's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Minister Of Russia
The chairman of the government of the Russian Federation, also informally known as the prime minister, is the nominal head of government of Russia. Although the post dates back to 1905, its current form was established on 12 December 1993 following the introduction of a new constitution. Due to the central role of the president of Russia in the political system, the activities of the executive branch (including the prime minister) are significantly influenced by the head of state (for example, it is the president who appoints and dismisses the prime minister and other members of the government; the president may chair the meetings of the cabinet and give obligatory orders to the prime minister and other members of the government; the president may also revoke any act of the government). The use of the term ''prime minister'' is strictly informal and is never used in the constitution. Mikhail Mishustin is the current prime minister. He was appointed on 16 January 2020 after ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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