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Okno Cave
Okno ( rus, Окно meaning window) is a Russian space surveillance station located in Nurak in Tajikistan. It is run by the Russian Space Forces and is part of the Centre for Outer Space Monitoring. It is located above sea level in the Sanglok mountains, an area with clear night skies. Another facility, Okno-S, is in the Russian Far East. The facility consists of a number of telescopes in domes and is similar to the US GEODSS system. It is designed for the detection and analysis of space objects such as satellites. The designers were awarded a Russian state prize for science and technology in 2004. History The Okno facility was started by the Soviet Union in 1979 using thousands of military unit No. 14464 "Construction Forces" draftees. All construction stopped in 1992 due to the civil war in Tajikistan and the centre started test operations in 1999 and combat duty in 2004. Ownership of the complex was transferred from Tajikistan to Russia in 2004 in return for the writin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nurak
Norak (russian: Нурек, tg, Норак ''Norak'') is a city in the Khatlon Region of Tajikistan. It is situated on the river Vakhsh, 885 m above sea level, and is 70 km southeast of Dushanbe, the capital. Its population is estimated at 31,400 for the city proper and 61,500 for the city with the outlying communities (2020). The city was founded in 1960 alongside the construction of Nurek Dam, which was completed in 1980. The city also has a military area housing personnel working at the nearby optical satellite tracking facility, the Okno ("Window") complex.https://fas.org/spp/military/program/track/okno.pdf Sourcebook on the Okno and Krona Space Surveillance Systems Subdivisions Before ca. 2018, Norak was the seat of Norak District Norak District or Nohiya-i Norak ( tg, Ноҳияи Норак) is a former district in Khatlon Region, Tajikistan. Its capital was Norak. Around 2018, it was merged into the city of Norak. Administrative divisions The district was di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Federation Of American Scientists
The Federation of American Scientists (FAS) is an American nonprofit global policy think tank with the stated intent of using science and scientific analysis to attempt to make the world more secure. FAS was founded in 1946 by scientists who worked on the Manhattan Project to develop the first atomic bombs. The Federation of American Scientists aims to reduce the amount of nuclear weapons that are in use, and prevent nuclear and radiological terrorism. They hope to present high standards for nuclear energy's safety and security, illuminate government secrecy practices, as well as track and eliminate the global illicit trade of conventional, nuclear, biological and chemical weapons. With 100 sponsors, the Federation of American Scientists says that it promotes a safer and more secure world by developing and advancing solutions to important science and technology security policy problems by educating the public and policy makers, and promoting transparency through research and ana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Earth Orbit
A high Earth orbit is a geocentric orbit with an altitude entirely above that of a geosynchronous orbit (). The orbital periods of such orbits are greater than 24 hours, therefore satellites in such orbits have an apparent retrograde motion – that is, even if they are in a prograde orbit (0° ≤ inclination < 90°), their orbital velocity is lower than al speed, causing their to move westward on 's surface. Examples of satellites in high Earth orbit See al ...
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Geostationary Orbit
A geostationary orbit, also referred to as a geosynchronous equatorial orbit''Geostationary orbit'' and ''Geosynchronous (equatorial) orbit'' are used somewhat interchangeably in sources. (GEO), is a circular geosynchronous orbit in altitude above Earth's equator ( in radius from Earth's center) and following the direction of Earth's rotation. An object in such an orbit has an orbital period equal to Earth's rotational period, one sidereal day, and so to ground observers it appears motionless, in a fixed position in the sky. The concept of a geostationary orbit was popularised by the science fiction writer Arthur C. Clarke in the 1940s as a way to revolutionise telecommunications, and the first satellite to be placed in this kind of orbit was launched in 1963. Communications satellites are often placed in a geostationary orbit so that Earth-based satellite antennas do not have to rotate to track them but can be pointed permanently at the position in the sky where the sat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Earth Orbit
A medium Earth orbit (MEO) is an geocentric orbit, Earth-centered orbit with an altitude above a low Earth orbit (LEO) and below a high Earth orbit (HEO) – between above sea level.''Catalog of Earth Satellite Orbits'' NASA Earth Observatory. 4 September 2009. Accessed 2 May 2021. The boundary between MEO and LEO is an arbitrary altitude chosen by accepted convention, whereas the boundary between MEO and HEO is the particular altitude of a geosynchronous orbit, in which a satellite takes 24 hours to circle the Earth, the same period as the Earth’s own rotation. All satellites in MEO have an orbital period of less than 24 hours, with the minimum period (for a circular orbit at the lowest MEO altitude) about 2 hours. Satellites in MEO or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low Earth Orbit
A low Earth orbit (LEO) is an orbit around Earth with a period of 128 minutes or less (making at least 11.25 orbits per day) and an eccentricity less than 0.25. Most of the artificial objects in outer space are in LEO, with an altitude never more than about one-third of the radius of Earth. The term ''LEO region'' is also used for the area of space below an altitude of (about one-third of Earth's radius). Objects in orbits that pass through this zone, even if they have an apogee further out or are sub-orbital, are carefully tracked since they present a collision risk to the many LEO satellites. All crewed space stations to date have been within LEO. From 1968 to 1972, the Apollo program's lunar missions sent humans beyond LEO. Since the end of the Apollo program, no human spaceflights have been beyond LEO. Defining characteristics A wide variety of sources define LEO in terms of altitude. The altitude of an object in an elliptic orbit can vary significantly along the orbit. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medvedev At Okno July 2009
Medvedev (russian: Медве́дев) and female Medvedeva (Медве́дева), from Russian ''medved’'' (медве́дь), meaning the animal "bear", are Slavic surnames. Notable bearers of the name include: Medvedev (male form): *Alexander Medvedev (born 1955), Russian business manager * Alexander Medvedev (ice hockey) (born 1979), Russian ice hockey player *Aleksei Medvedev (other) – several people *Andriy Medvedev (born 1974), Ukrainian tennis player *Daniil Medvedev (born 1996), Russian tennis player *Danila Medvedev (born 1980), Russian futurologist, business manager *Dmitry Medvedev (born 1965), Russian Politician, former Prime Minister of the Russian Federation, former President of Russia *Dmitry Medvedev (partisan) (1898–1954), Russian partisan leader in World War II *Evgeny Medvedev (born 1982), Russian ice hockey defenseman *Grigory Medvedev, Soviet sprint canoeist *Hennadiy Medvedyev (born 1975), Ukrainian footballer * Ilya Medvedev (born 1983), Ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red River
Red River usually refers to one of the following: * Red River (Asia) (Chinese: 紅河, 红河, ''Hóng Hé''; Vietnamese: ''Sông Hồng'') in China and Vietnam * Red River of the North in Canada and the United States * Red River of the South, a tributary of the Mississippi in Texas, Oklahoma, Arkansas, and Louisiana in the United States Red River may also refer to: Rivers United States * Red River (Cumberland River), a tributary of the Cumberland in Kentucky and Tennessee * Red River (Illinois), a tributary of Panther Creek in Woodford County * Red River (Kentucky River), a tributary of the Kentucky * Red River (Maine), a tributary of the Fish * Red River (New Mexico), a tributary of the Rio Grande * Red River, New York, a tributary of the Moose * Red River (Oregon), in the United States * Red River (St. Louis River tributary), in Minnesota and Wisconsin * Red River (Wolf River tributary), in Wisconsin * Red River of the North, flows northward between Minnesota and North D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Cardinal Of The Kremlin
''The Cardinal of the Kremlin'' is an espionage thriller novel, written by Tom Clancy and released on May 20, 1988. A direct sequel to ''The Hunt for Red October'' (1984), it features CIA analyst Jack Ryan as he extracts CARDINAL, the agency's highest placed agent in the Soviet government who is being pursued by the KGB, as well as the Soviet intelligence agency's director. The novel also features the Strategic Defense Initiative (SDI), a real-life missile-defense system developed by the United States during that time, and its Russian counterpart. The book debuted at number one on the New York Times bestseller list. Plot summary For thirty years, Colonel Mikhail Semyonovich "Misha" Filitov, a personal aide to the Soviet Minister of Defense and war hero, has been passing military, technical, and political intelligence to the CIA as their highest agent-in-place, codenamed CARDINAL. His latest mission concerns a Soviet anti-ballistic missile research project codenamed "Bright Star ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tom Clancy
Thomas Leo Clancy Jr. (April 12, 1947 – October 1, 2013) was an American novelist. He is best known for his technically detailed espionage and military science, military-science storylines set during and after the Cold War. Seventeen of his novels have been bestsellers and more than 100 million copies of his books have been sold. His name was also used on movie scripts written by ghostwriters, nonfiction books on military subjects occasionally with co-authors, and video games. He was a part-owner of his hometown Major League Baseball team, the Baltimore Orioles of the American League, and vice-chairman of their community activities and public affairs committees. Originally an insurance agent, his literary career began in 1984 when he sold his first military thriller novel ''The Hunt for Red October'' for $5,000 published by the small academic Naval Institute Press of Annapolis, Maryland. His works ''The Hunt for Red October'' (1984), ''Patriot Games'' (1987), ''Clear and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-satellite
Anti-satellite weapons (ASAT) are space weapons designed to incapacitate or destroy satellites for strategic or tactical purposes. Several nations possess operational ASAT systems. Although no ASAT system has been utilised in warfare, a few countries (China, India, Russia, United Kingdom and the United States) have successfully shot down their own satellites to demonstrate their ASAT capabilities in a show of force. ASATs have also been used to remove decommissioned satellites. ASAT roles include: defensive measures against an adversary's space-based and nuclear weapons, a force multiplier for a nuclear first strike, a countermeasure against an adversary's anti-ballistic missile defence (ABM), an asymmetric counter to a technologically superior adversary, and a counter-value weapon. Use of ASATs generates space debris, which can collide with other satellites and generate more space debris. A cascading multiplication of space debris could cause Earth to suffer f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tajikistan
Tajikistan (, ; tg, Тоҷикистон, Tojikiston; russian: Таджикистан, Tadzhikistan), officially the Republic of Tajikistan ( tg, Ҷумҳурии Тоҷикистон, Jumhurii Tojikiston), is a landlocked country in Central Asia. It has an area of and an estimated population of 9,749,625 people. Its capital and largest city is Dushanbe. It is bordered by Afghanistan to the south, Uzbekistan to the west, Kyrgyzstan to the north, and China to the east. It is separated narrowly from Pakistan by Afghanistan's Wakhan Corridor. The traditional homelands of the Tajiks include present-day Tajikistan as well as parts of Afghanistan and Uzbekistan. The territory that now constitutes Tajikistan was previously home to several ancient cultures, including the city of Sarazm of the Neolithic and the Bronze Age and was later home to kingdoms ruled by people of different faiths and cultures, including the Oxus civilization, Andronovo culture, Buddhism, Nestorian Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
