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Ekspress AT2
Ekspress-AT2 (russian: Экспресс-АT2) is a Russian communications satellite which was launched in March 2014. Part of the Ekspress series of geostationary communications satellites, it is owned and operated by the Russian Satellite Communications Company (RSCC). Satellite description It is based on the Ekspress-1000K satellite bus manufactured by ISS Reshetnev. Its mass at launch is , and the power allocated to the payload is about 3000 watts. The satellite carries 16 Ku-band transponders, providing satellite television to Western and Central Russia, as well as Western and Central Siberia, and almost all of Kazakhstan. The planned service life of the satellite is at least 15 years. Launch It was launched, with Ekspress-AT1 communications satellite, on 15 March 2014 at 23:08:00 UTC, from Baikonur Cosmodrome at Site 81/24 in the framework of Russian Federal Space Program for 2006–2015, approved by the Government Decree No. 635 signed on 22 October 2005 by Prime ... [...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; it creates a communication channel between a source transmitter and a 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 high frequency radio waves used for telecommunications links travel by line of sight and so are obstructed by the curve of the Earth. The purpose of communications sate ... [...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 commu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of The Government Of Russia
Orders of the Government of Russia (russian: Постановления и Pаспоряжения) is secondary legislation, a normative administrative directive content published by the Government of the Russian Federation within the limits of its competence, on the basis and in pursuance of the Constitution of the Russian Federation, federal constitutional laws, federal laws and Decrees of the President of Russia. Legal basis Government orders signed by the Prime Minister of Russia. Government orders are binding in the Russian Federation. In the event of conflict with the Constitution of the Russian Federation, federal laws and decrees of the President, government orders may be revoked by the President of Russia. order of the Government of the Russian Federation may also be deemed to be unconstitutional by the Constitutional Court of the Russian Federation. Publication Resolution of the Government of the Russian Federation are subject to compulsory official publication, exc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siberian Federal District
Siberian Federal District (russian: Сиби́рский федера́льный о́круг, ''Sibirsky federalny okrug'') is one of the eight federal districts of Russia. Its population was 17,178,298 according to the 2010 Census, living in an area of . Alone, it would be the 7th largest country in the world. The entire federal district lies within the continent of Asia. The district was created by presidential decree on 13 May 2000 and covers around 30% of the total land area of Russia. In November 2018, Buryatia and Zabaykalsky Krai were removed from the Siberian Federal District and added to the Far Eastern Federal District in accordance with a decree issued by Russian President Vladimir Putin. Demographics Federal subjects The district comprises the West Siberian (part) and East Siberian economic regions and ten federal subjects: Religion and ethnicity According to a 2012 survey, 28.9% of the population of the current federal subjects of the Siberian Fede ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Siberia
Western Siberia or West Siberia (russian: Западная Сибирь, Zapadnaya Sibir'; kk, Батыс Сібір) is a part of the larger region of Siberia that is mostly located in the Russian Federation. It lies between the Ural region and the Yenisei River, which conventionally divides Siberia into two halves. Western Siberia covers an area of , nearly 80% of which is located within the West Siberian Plain. The largest rivers of the region are the Irtysh and the Ob. The West Siberian petroleum basin is the largest hydrocarbon (petroleum and natural gas) basin in the world covering an area of about 2.2 million km2, and is also the largest oil and gas producing region in Russia. In medieval times, the region was part of the Golden Horde. After its gradual decline during the 15th century, the Khanate of Sibir, centered on Tyumen, was formed within the area. In the late 16th century, most of Western Siberia was conquered by the Russian Empire, while its southern region be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Russia
Central Russia is, broadly, the various areas in European Russia. Historically, the area of Central Russia varied based on the purpose for which it is being used. It may, for example, refer to European Russia (except the North Caucasus and Kalinigrad). The 1967 book by Stephen P. Dunn and Ethel Dunn ''The Peasants of Central Russia'' defines the area as the territory from Novgorod Oblast to the north to the border with Ukraine in the south and from Smolensk Oblast to the west and Volga to the east. A review of the book clarifies that this concept is treated in the book as the historical and ethnographical one: this is the historical area of Great Russians.L. A. Anokhina, V. Iu. Krupianskaia, M. N. Shmeleva (translated by Stephen P. Dunn and Ethel Dunn), "On the Study of the Russian Peasantry", ''Current Anthropology'', ''Current Anthropology'', Vol. 14, No. 1/2 (Feb. - Apr., 1973), pp. 143-157, See also * Central Agricultural Zone (Russia) * Central Economic Region o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Russia
European Russia (russian: Европейская Россия, russian: европейская часть России, label=none) is the western and most populated part of Russia. It is geographically situated in Europe, as opposed to the country's sparsely populated and vastly larger Siberia, eastern part, which is situated in Asia, encompassing the entire North Asia, northern region of the continent. The Ural Mountains divide Russia into two parts, bisecting the Eurasian supercontinent. European Russia covers the vast majority of Eastern Europe, and spans roughly 40% of Europe's total landmass, with over 15% of its total population, making Russia the List of European countries by area, largest and List of European countries by population, most populous country in Europe. Area and demographics European Russia accounts for about 75% of Russia's total population. It covers an area of over , with a population of nearly 110 million—making Russia the List of European countries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite Television
Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location. The signals are received via an outdoor parabolic antenna commonly referred to as a satellite dish and a low-noise block downconverter. A satellite receiver then decodes the desired television program for viewing on a television set. Receivers can be external set-top boxes, or a built-in television tuner. Satellite television provides a wide range of channels and services. It is usually the only television available in many remote geographic areas without terrestrial television or cable television service. Modern systems signals are relayed from a communications satellite on the X band (8–12 GHz) or Ku band (12–18 GHz) frequencies requiring only a small dish less than a meter in diameter. The first satellite TV systems were an obsolete type now known as television receive-only. Thes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transponder (satellite Communications)
A communications satellite's transponder is the series of interconnected units that form a communications channel between the receiving and the transmitting antennas. It is mainly used in satellite communication to transfer the received signals. A transponder is typically composed of: * an input band-limiting device (an input band-pass filter), * an input low-noise amplifier (LNA), designed to amplify the signals received from the Earth station (normally very weak, because of the large distances involved), * a frequency translator (normally composed of an oscillator and a frequency mixer) used to convert the frequency of the received signal to the frequency required for the transmitted signal, * an output band-pass filter, * a power amplifier (this can be a traveling-wave tube or a solid-state amplifier). Most communication satellites are radio relay stations in orbit and carry dozens of transponders, each with a bandwidth of tens of megahertz. Most transponders operate on a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one newton, the rate at which work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite Bus
A satellite bus (or spacecraft bus) is the main body and structural component of a satellite or spacecraft, in which the payload and all scientific instruments are held. Bus-derived satellites are opposed to specially produced satellites. Bus-derived satellites are usually customized to customer requirements, for example with specialized sensors or transponders, in order to achieve a specific mission. They are commonly used for geosynchronous satellites, particularly communications satellites, but are also used in spacecraft which occupy lower orbits, occasionally including low Earth orbit missions. Examples Some satellite bus examples include: * Boeing DS&S 702 * Lockheed Martin Space Systems A2100 * Alphabus * INVAP ARSAT-3K * Airbus D&S Eurostar * ISRO's I-1K, I-2K, I-3K, I-4K, I-6K, and Indian Mini Satellite bus * NASA Ames MCSB * SSL 1300 * Orbital ATK GEOStar * Mitsubishi Electric DS2000 * Spacecraft bus of the James Webb Space Telescope * SPUTNIX TabletSat * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ekspress (satellite Constellation)
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 com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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