Satellite Definition

In context of spaceflighta satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as Earth's Moon. In the Soviet Union launched the world's first artificial satellite, Sputnik 1. Since then, about 6, satellites from more than 40 countries have been launched. According to a estimate, 3, remained Satellite Definition orbit. Over a dozen space probes have been placed into orbit around other bodies and become artificial satellites to the MoonMercuryVenusMarsJupiterSaturna few asteroids[4]a Gambler Definition and the Sun.

Satellites are used for many purposes. Common types include military and civilian Earth observation satellitescommunications satellitesnavigation satellitesweather satellitesand space telescopes. Space stations and human spacecraft in orbit are also satellites. Satellite orbits vary greatly, depending on the purpose of the satellite, and are classified in a number of Satellite Definition.

Well-known overlapping classes include low Earth orbit, polar orbitand geostationary orbit. A launch vehicle is a rocket that places a satellite into orbit. Usually it lifts off from a launch pad on land. Some are launched at sea from a submarine or a mobile maritime platformor aboard a plane see air launch to orbit.

Satellites are usually semi-independent computer-controlled systems. Satellite subsystems attend many tasks, such as power generation, thermal controltelemetry, attitude control and orbit control. The first fictional depiction of a satellite being launched into orbit was a short story by Edward Everett HaleThe Brick Moon.

He calculated the orbital speed required for a minimal orbit, and that a multi-stage rocket fuelled by liquid propellants could achieve this. He described the use of orbiting spacecraft for observation of the ground and described how the special conditions of space could be useful for scientific experiments. Clarke — described in detail the possible use of communications satellites for mass communications. The US military studied the idea of what was referred to as the earth satellite vehicle when Secretary of Defense James Forrestal made a public announcement on 29 Decemberthat his office was coordinating that project between the various services.

The first artificial satellite was Sputnik 1launched by the Soviet Union on 4 Octoberand initiating the Soviet Sputnik programwith Sergei Korolev as chief designer. Sputnik 1 helped to identify the density of high atmospheric layers through measurement of its orbital change and provided data Ny Lotto Payout radio-signal distribution in the ionosphere. The unanticipated announcement of Sputnik 1' s success precipitated the Sputnik crisis in the United States and ignited the so-called Space Race within the Cold War.

Sputnik 2 was launched on 3 November and carried the first living passenger into orbit, a dog named Laika. The United States Air Force 's Project RAND eventually released the report, but considered the satellite to Satellite Definition a tool for science, politics, and propaganda, rather than a potential military weapon.

Inthe Secretary of Defense stated, "I know of no American satellite program. In the context Satellite Definition activities planned for the International Geophysical Year —58the White House announced on 29 July that the U. This became known as Project Vanguard. On 31 July, the Soviets announced that they intended to launch a satellite by the fall of Following pressure by the American Rocket Societythe National Science Foundationand the International Geophysical Year, military interest picked up and in early the Army and Navy were working on Project Orbitertwo competing programs: At first, they failed: But finally, three months after Sputnik 2, the project succeeded; Explorer 1 became the United States' first artificial satellite on 31 January In Junethree-and-a-half years after the launch of Sputnik 1, the Air Force used resources of the United States Space Surveillance Network to catalog Earth-orbiting satellites.

Early satellites were constructed as " one-off " designs. With growth in geosynchronous GEO satellite communicationmultiple satellites began to be built on single model platforms called satellite buses.

Play, gamers hang three Definition Satellite

The largest artificial satellite currently Satellite Definition the Earth is the International Space Station.

Since then, the SSN has tracked more than 26, objects. The SSN currently tracks more than 8, man-made orbiting objects. The rest have re-entered Earth's atmosphere and disintegrated, or survived re-entry and impacted the Earth. The SSN tracks objects that are 10 centimeters in diameter or larger; those now orbiting Earth range from satellites weighing several tons to pieces of spent rocket bodies weighing only 10 pounds. About seven percent are operational satellites i.

There are three basic categories of non-military satellite services: Fixed satellite services handle hundreds of billions of voice, data, and video transmission tasks across all countries and continents between certain points on the Earth's surface. Scientific research satellites provide meteorological information, land survey data e.

The first satellite, Sputnik 1was put into orbit around Earth and was therefore in geocentric orbit. By far this is the most common type of orbit with approximately 1, [20] artificial satellites orbiting the Earth. Geocentric orbits may be further classified by their altitude, inclination and eccentricity.

Low Earth orbit is any orbit below 2, km. The general structure of a satellite is that it is connected to the earth stations that are present on the ground and connected through terrestrial links. The satellite's functional versatility is imbedded within its technical components and its operations Satellite Definition.

Looking at the "anatomy" of a typical satellite, one discovers two modules.

  • Satellite definition: A satellite is an object which has been sent into space in order to collect information | Meaning, pronunciation, translations and examples.
  • Satellite definition, Astronomy. a natural body that revolves around a planet; a moon. See more.
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The bus module consists of the following subsystems:. The structural subsystem provides the mechanical base structure with adequate stiffness to withstand stress and vibrations experienced during launch, maintain structural integrity and stability while on station in orbit, and shields the satellite from extreme temperature changes and micro-meteorite damage. The power subsystem consists of solar panels to convert solar energy into electrical power, regulation and distribution functions, and batteries that store power and supply the satellite when it passes into the Earth's shadow.

Nuclear power sources Radioisotope Satellite Definition generator have also been used in several successful satellite programs including the Nimbus program — The thermal control subsystem helps protect electronic equipment from extreme temperatures due to intense sunlight or the lack of sun exposure on different sides of the satellite's body e.

The attitude and orbit control subsystem consists of sensors to measure vehicle San Manuel Amphitheatre Seating Chart, control laws embedded in the flight software, and actuators reaction wheels, thrusters.

These apply the torques and forces needed to re-orient the vehicle to a desired attitude, keep the satellite in the correct orbital position, and keep antennas pointed in the right directions. The second major module is the communication payload, which is made up of transponders. A transponder is capable of:. When satellites reach the end of their mission this normally occurs within 3 or 4 years after launchsatellite operators have the option of de-orbiting the satellite, leaving the satellite in its current orbit or moving the satellite to a graveyard orbit.

Historically, due to budgetary constraints at the beginning of satellite missions, satellites were rarely designed to be de-orbited. One example of this practice is the satellite Vanguard 1. Launched inVanguard 1the 4th manmade satellite put in Geocentric orbit, was still in orbit as of August Instead of being de-orbited, most satellites are either left in their current orbit or moved to a graveyard orbit.

This list includes countries with an independent capability to place satellites in orbit, including production of the necessary launch vehicle. This list does not consider those numerous countries, but only lists those capable of launching satellites indigenously, and the date this capability was first demonstrated.

The list includes the European Space Agency Satellite Definition, a multi-national state organization, but does not include private consortiums. A few other private companies Satellite Definition capable of sub-orbital launches. While Canada was the third country to build a satellite which was launched into space, [49] it was launched aboard an American rocket from an American spaceport. The same goes for Australia, who launched first satellite involved a donated U.

Redstone rocket and American support staff as well as a joint launch facility with the United Kingdom. Both Chile and Belarus used Russian companies as principal contractors to build their satellites, they used Russian-Ukrainian manufactured rockets and launched either from Russia or Kazakhstan.

In recent times [ timeframe? For testing purposes, satellites in low earth orbit have been destroyed by ballistic missiles launched from earth. Russia, the United States and Ma State Lottery Keno have demonstrated the ability to eliminate satellites. Due to the low received signal strength of satellite transmissions, they are prone to jamming by land-based transmitters.

Such jamming is limited to the geographical area within the transmitter's range. GPS satellites are potential targets for Satellite Definition, [97] [98] but satellite phone and television signals have also been subjected to jamming. Also, it is very easy to transmit a carrier radio signal to a geostationary satellite and thus interfere with the legitimate uses of the satellite's transponder. It is common for Earth stations to transmit at the wrong Satellite Definition or on the wrong frequency in commercial satellite space, and dual-illuminate the transponder, rendering the frequency unusable.

Satellite operators now have sophisticated monitoring that enables them to pinpoint the source of any carrier and manage the transponder space effectively. From Wikipedia, the free encyclopedia. This article is about artificial satellites. For natural satellites, also known as moons, see Natural satellite. For other uses, see Satellite disambiguation. United States Space Surveillance Network. Attitude control and Spacecraft propulsion. Timeline of first orbital launches by nationality. This section needs expansion.

You can help by adding to it.

Nonetheless ready for Satellite Definition

Timeline of first satellites by country. For more details on this topic, see Anti-satellite weapon. Satellite crop monitoring Satellite Internet access Satellite navigation Satellite phone Satellite radio Satellite television. Archived from the original on Marshall Space Flight Center. Science-fiction, the Early Years. Kent State University Press.

You Satellite Definition have

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  1. satellite definition, meaning, what is satellite: a device sent up into space to travel around the earth, used for collecting information. Learn more.:
    Define satellite: a hired agent or obsequious follower: minion, sycophant; a celestial body orbiting another of larger size — satellite in a sentence. Definition of satellite - an artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication. In general, a satellite is anything that orbits something else, as, for example, the moon orbits the earth. In a communications context, a satellite is a specialized wireless receiver/transmitter that is launched by a rocket and placed in orbit around t.
  2. 9 Nov A satellite is a moon, planet or machine that orbits a planet or star.:
    The word satellite was first used to describe a follower of someone in a superior position. The word's meaning later broadened to describe anything small that's dependent on something larger. The small satellite circles around the more powerful force, like a moon orbiting a planet. Satellite can describe a small country — a. In context of spaceflight, a satellite is an artificial object which has been intentionally placed into orbit. Such objects are sometimes called artificial satellites to distinguish them from natural satellites such as Earth's Moon. In the Soviet Union launched the world's first artificial satellite, Sputnik 1. Since then , about 6, Define satellite. satellite synonyms, satellite pronunciation, satellite translation, English dictionary definition of satellite.) n. 1. An object launched to orbit Earth or another celestial body, as a device for reflecting or relaying radio signals or for capturing images.
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That the Satellite Definition performed it, however means obtained previous

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Astronomy a celestial body orbiting around a planet or star: See also communications satellite. Telecommunications modifier of, used in, or relating to the transmission of television signals from a satellite to the house: Communications satellites receive, amplify, and transmit radio signals between dish antennas that may be hundreds of miles apart.

A celestial body that orbits a planet; a moon. See Note at moon. An object launched to orbit Earth or another celestial body. Satellites are used for research, communications, weather information, and navigation. A spacecraft launched into orbit around the Earth or entering an orbit around some other body in the solar system. Satellites are used for gathering information, intelligence, and for communication. They transmit radio, telephone, and television signals. Constant radio links became possible in Three such satellites, spaced at equal intervals angular degrees apart , can provide coverage of the entire civilized world.

A geostationary satellite can be accessed using a dish antenna aimed at the spot in the sky where the satellite hovers. A low-earth-orbit LEO satellite system employs a large fleet of "birds," each in a circular orbit at a constant altitude of a few hundred miles. The orbits take the satellites over, or nearly over, the geographic poles. Each revolution takes approximately 90 minutes to a few hours.

The fleet is arranged in such a way that, from any point on the surface at any time, at least one satellite is on a line of sight. The entire system operates in a manner similar to the way a cellular telephone functions. A well-designed LEO system makes it possible for anyone to access the Internet via wireless from any point on the planet, using an antenna no more sophisticated than old-fashioned television "rabbit ears.

Some satellites revolve around the earth in elliptical orbits. These satellites move rapidly when they are near perigee, or their lowest altitude; they move slowly when they are near apogee, or their highest altitude. Such "birds" are used by amateur radio operators, and by some commercial and government services. They require directional antennas whose orientation must be constantly adjusted to follow the satellite's path across the sky.

Explore the latest enterprise mobile security technology. Enterprise mobile application development changes IT strategy. A primer for IT. By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. SearchNetworking presented eight companies with Network Innovation Awards in , recognizing network advancements that ranged Automation holds great promise for smoothing the management of complex modern networks, but to reap its full benefits, you'll Obstacles facing IT adoption of automation in the network including training and trust.

Now's the time to clear these hurdles and The 5G wireless evolution is expected to bring benefits ranging from high broadband speeds to shared wired and wireless Border Gateway Protocol is the complex routing protocol that literally makes the internet work. This tutorial walks you through Vendor equipment consolidation could limit network operator service automation efforts, but new open source network tools offer John After Hurricane," 13 Sep.

In a study published Wednesday in the journal Science Advances, McClenachan and her colleagues compared those year-old observations with present-day satellite images.

While the signals to these stations are free, cable or satellite companies must pay a fee to carry them as part of their packages. We asked a psychic spy. Origin and Etymology of satellite Middle French, from Latin satellit-, satelles attendant.

Other Astronomy Terms gibbous , nadir , nebulous , penumbra , retrograde , sidereal , syzygy , wane , wax , zenith. Related Phrases satellite imagery.

Definition of satellite for English Language Learners. Learn More about satellite See words that rhyme with satellite Spanish Central: Seen and Heard What made you want to look up satellite? Need even more definitions? Get Word of the Day daily email! Your mother says that you've been a mammothrept all year. You've been… Nice Naughty. To 'Essay' or 'Assay'? How Perceptive of You: Words About Perception There's more than meets the eye. Ask the Editors Word of the Year:

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Satellites move continually round the Earth or around another planet. The rocket launched two communications satellites. Worldwide coverage beamed by satellite generates huge audiences accompanied by global advertising revenues.

Italy became a satellite state of Germany by the end of the s. Word origin of 'satellite'. Example sentences containing 'satellite' These examples have been automatically selected and may contain sensitive content. On a steel platform below the bridge a satellite dish cupped the sky.

Rand Corporation, Santa Monica 8 June Archived from the original on 1 February Archived from the original PDF on Archived from the original PDF on 8 April Communication Technology Update ninth ed. National Academy of Science. Union of Concerned Scientists. Retrieved 24 May Rockets and Graveyard Orbits".

Forecast for Space Junk Reentry. Archived from the original on 22 April Retrieved 17 January University of Toronto Institute for Aerospace Studies. Archived from the original on 10 March Retrieved 2 March Archived from the original on 8 July Retrieved 8 July Space Programs Outside the United States.

American Institute of Aeronautics and Astronautics. Beyond Saddam's space program". Whether it is legal to purchase and own satellite dishes in Iraq, and the sanction for owning satellite dishes if it is illegal". United Nations High Commissioner for Refugees. Archived from the original on 16 April Archived from the original on 3 January Archived from the original on 3 April Retrieved 25 June Archived from the original on 17 June No satellite launching plan so far".

Archived from the original on 29 February Archived from the original on 12 January Archived from the original on 20 March Retrieved 25 March Press Trust of India. Archived from the original on 26 May Archived from the original on 29 April Orbital meteorological and remote sensing systems.

Astronomy Earth observation Archaeology Imagery and mapping Reconnaissance Weather and environment monitoring Satellite communications Internet Radio Telephone Television Satellite navigation Commercial use of space Space launch market competition Militarisation of space Space architecture Space exploration Space research Space technology Space weather.

Effect of spaceflight on the human body Space adaptation syndrome Health threat from cosmic rays Psychological and sociological effects of spaceflight Space and survival Space medicine Space nursing. Direct ascent Escape velocity Expendable and reusable launch systems Launch pad Non-rocket spacelaunch Spaceport.

Flight controller Ground station Pass Mission control center. Retrieved from " https: Satellites Meteorological data and networks Remote sensing Spacecraft. Views Read Edit View history. In other projects Wikimedia Commons Wikiquote. This page was last edited on 30 December , at By using this site, you agree to the Terms of Use and Privacy Policy.

Space Race Timeline of spaceflight Space probes Lunar missions. Earth observation satellites Spy satellites Communications satellites Satellite navigation Space telescopes Space exploration Space tourism Space colonization. Spaceport Launch pad Expendable and reusable launch vehicles Escape velocity Non-rocket spacelaunch. Sputnik 1 Kosmos Esiafi 1 former Comstar D4. Enterprise mobile application development changes IT strategy. A primer for IT. By submitting you agree to receive email from TechTarget and its partners.

If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. SearchNetworking presented eight companies with Network Innovation Awards in , recognizing network advancements that ranged Automation holds great promise for smoothing the management of complex modern networks, but to reap its full benefits, you'll Obstacles facing IT adoption of automation in the network including training and trust.

Now's the time to clear these hurdles and The 5G wireless evolution is expected to bring benefits ranging from high broadband speeds to shared wired and wireless Border Gateway Protocol is the complex routing protocol that literally makes the internet work. This tutorial walks you through Vendor equipment consolidation could limit network operator service automation efforts, but new open source network tools offer With the help of cloud-based technology, video conference vendors can roll out more options for potential buyers, who now face a In the world of WebRTC, expect the video codec wars to ramp back up in Also, learn how browsers could become irrelevant in Take a look at the top UC news stories that affected the industry in -- from the growth in the team collaboration market to Login managers enable the exposure of user credentials in over 1, websites.

Plus, Mozilla patched a critical Learn about the similarities and differences between five basic types of firewalls, including packet filtering firewalls, Home Networking Telecom satellite.

This was last updated in October Related Terms line of sight LOS The level of obstruction in a line of sight determines not only the visibility from one point to another but also the quality of Mobile technology drives edge computing forward Put Wi-Fi analytics on the front burner Should you upgrade to Do consumers still care?

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You can view images from some of these satellites on the Internet via the Purdue Weather Processor. A single geostationary satellite can "see" approximately 40 percent of the earth's surface. Three such satellites, spaced at equal intervals angular degrees apart , can provide coverage of the entire civilized world.

A geostationary satellite can be accessed using a dish antenna aimed at the spot in the sky where the satellite hovers. A low-earth-orbit LEO satellite system employs a large fleet of "birds," each in a circular orbit at a constant altitude of a few hundred miles.

The orbits take the satellites over, or nearly over, the geographic poles. Each revolution takes approximately 90 minutes to a few hours. The fleet is arranged in such a way that, from any point on the surface at any time, at least one satellite is on a line of sight.

The entire system operates in a manner similar to the way a cellular telephone functions. A well-designed LEO system makes it possible for anyone to access the Internet via wireless from any point on the planet, using an antenna no more sophisticated than old-fashioned television "rabbit ears. Some satellites revolve around the earth in elliptical orbits. These satellites move rapidly when they are near perigee, or their lowest altitude; they move slowly when they are near apogee, or their highest altitude.

Such "birds" are used by amateur radio operators, and by some commercial and government services. They require directional antennas whose orientation must be constantly adjusted to follow the satellite's path across the sky. Explore the latest enterprise mobile security technology. Enterprise mobile application development changes IT strategy.

A primer for IT. By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. SearchNetworking presented eight companies with Network Innovation Awards in , recognizing network advancements that ranged Automation holds great promise for smoothing the management of complex modern networks, but to reap its full benefits, you'll Obstacles facing IT adoption of automation in the network including training and trust.

Now's the time to clear these hurdles and The 5G wireless evolution is expected to bring benefits ranging from high broadband speeds to shared wired and wireless Border Gateway Protocol is the complex routing protocol that literally makes the internet work. Worldwide coverage beamed by satellite generates huge audiences accompanied by global advertising revenues. Italy became a satellite state of Germany by the end of the s.

Word origin of 'satellite'. Example sentences containing 'satellite' These examples have been automatically selected and may contain sensitive content. On a steel platform below the bridge a satellite dish cupped the sky. Ritter looked again at the satellite photo of the house. Translate your text for free.

According to a estimate, 3, remained in orbit. Over a dozen space probes have been placed into orbit around other bodies and become artificial satellites to the Moon , Mercury , Venus , Mars , Jupiter , Saturn , a few asteroids , [4] , a comet and the Sun. Satellites are used for many purposes. Common types include military and civilian Earth observation satellites , communications satellites , navigation satellites , weather satellites , and space telescopes.

Space stations and human spacecraft in orbit are also satellites. Satellite orbits vary greatly, depending on the purpose of the satellite, and are classified in a number of ways. Well-known overlapping classes include low Earth orbit, polar orbit , and geostationary orbit.

A launch vehicle is a rocket that places a satellite into orbit. Usually it lifts off from a launch pad on land. Some are launched at sea from a submarine or a mobile maritime platform , or aboard a plane see air launch to orbit.

Satellites are usually semi-independent computer-controlled systems. Satellite subsystems attend many tasks, such as power generation, thermal control , telemetry, attitude control and orbit control. The first fictional depiction of a satellite being launched into orbit was a short story by Edward Everett Hale , The Brick Moon.

He calculated the orbital speed required for a minimal orbit, and that a multi-stage rocket fuelled by liquid propellants could achieve this. He described the use of orbiting spacecraft for observation of the ground and described how the special conditions of space could be useful for scientific experiments. Clarke — described in detail the possible use of communications satellites for mass communications.

The US military studied the idea of what was referred to as the earth satellite vehicle when Secretary of Defense James Forrestal made a public announcement on 29 December , that his office was coordinating that project between the various services. The first artificial satellite was Sputnik 1 , launched by the Soviet Union on 4 October , and initiating the Soviet Sputnik program , with Sergei Korolev as chief designer.

Sputnik 1 helped to identify the density of high atmospheric layers through measurement of its orbital change and provided data on radio-signal distribution in the ionosphere. The unanticipated announcement of Sputnik 1' s success precipitated the Sputnik crisis in the United States and ignited the so-called Space Race within the Cold War. Sputnik 2 was launched on 3 November and carried the first living passenger into orbit, a dog named Laika.

The United States Air Force 's Project RAND eventually released the report, but considered the satellite to be a tool for science, politics, and propaganda, rather than a potential military weapon.

In , the Secretary of Defense stated, "I know of no American satellite program. In the context of activities planned for the International Geophysical Year —58 , the White House announced on 29 July that the U. This became known as Project Vanguard. On 31 July, the Soviets announced that they intended to launch a satellite by the fall of Following pressure by the American Rocket Society , the National Science Foundation , and the International Geophysical Year, military interest picked up and in early the Army and Navy were working on Project Orbiter , two competing programs: At first, they failed: But finally, three months after Sputnik 2, the project succeeded; Explorer 1 became the United States' first artificial satellite on 31 January In June , three-and-a-half years after the launch of Sputnik 1, the Air Force used resources of the United States Space Surveillance Network to catalog Earth-orbiting satellites.

Early satellites were constructed as " one-off " designs. With growth in geosynchronous GEO satellite communication , multiple satellites began to be built on single model platforms called satellite buses.

The largest artificial satellite currently orbiting the Earth is the International Space Station. Since then, the SSN has tracked more than 26, objects. The SSN currently tracks more than 8, man-made orbiting objects.

The rest have re-entered Earth's atmosphere and disintegrated, or survived re-entry and impacted the Earth. The SSN tracks objects that are 10 centimeters in diameter or larger; those now orbiting Earth range from satellites weighing several tons to pieces of spent rocket bodies weighing only 10 pounds. About seven percent are operational satellites i. There are three basic categories of non-military satellite services: Fixed satellite services handle hundreds of billions of voice, data, and video transmission tasks across all countries and continents between certain points on the Earth's surface.

Scientific research satellites provide meteorological information, land survey data e. The first satellite, Sputnik 1 , was put into orbit around Earth and was therefore in geocentric orbit. By far this is the most common type of orbit with approximately 1, [20] artificial satellites orbiting the Earth.

Geocentric orbits may be further classified by their altitude, inclination and eccentricity. Low Earth orbit is any orbit below 2, km. The general structure of a satellite is that it is connected to the earth stations that are present on the ground and connected through terrestrial links. The satellite's functional versatility is imbedded within its technical components and its operations characteristics. Looking at the "anatomy" of a typical satellite, one discovers two modules. The bus module consists of the following subsystems:.

The structural subsystem provides the mechanical base structure with adequate stiffness to withstand stress and vibrations experienced during launch, maintain structural integrity and stability while on station in orbit, and shields the satellite from extreme temperature changes and micro-meteorite damage.

The power subsystem consists of solar panels to convert solar energy into electrical power, regulation and distribution functions, and batteries that store power and supply the satellite when it passes into the Earth's shadow.

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Constant radio links became possible in Switch to new thesaurus. Galilean satellite , Galilean - one of the four satellites of Jupiter that were discovered by Galileo. One who supports and adheres to another: The Moon is a satellite of the Earth.

References in classic literature? The sawyer himself did not participate in the conference, but abided at a little distance, like an outer satellite who was not to speak until required, or to offer an opinion until invited. The black satellite came forward accordingly, and, producing from his basket a large pair of scales and several weights, he laid them at the feet of Front-de-B View in context.

While I gazed, this fissure rapidly widened--there came a fierce breath of the whirlwind--the entire orb of the satellite burst at once upon my sight--my brain reeled as I saw the mighty walls rushing asunder--there was a long tumultuous shouting sound like the voice of a thousand waters--and the deep and dank tarn at my feet closed sullenly and silently over the fragments of the "House of Usher".

The further moon revolves about Mars in something over thirty and one-quarter hours, and with her sister satellite makes a nocturnal Martian scene one of splendid and weird grandeur. Now, I shall be very much astonished if that satellite does not raise these masses of water sufficiently, and render me a service that I should be indebted to her for.

On a front view it appeared to consist principally of two spheres, bearing about the same relation to each other as the earth and the moon: A single geostationary satellite can "see" approximately 40 percent of the earth's surface. Three such satellites, spaced at equal intervals angular degrees apart , can provide coverage of the entire civilized world. A geostationary satellite can be accessed using a dish antenna aimed at the spot in the sky where the satellite hovers. A low-earth-orbit LEO satellite system employs a large fleet of "birds," each in a circular orbit at a constant altitude of a few hundred miles.

The orbits take the satellites over, or nearly over, the geographic poles. Each revolution takes approximately 90 minutes to a few hours. The fleet is arranged in such a way that, from any point on the surface at any time, at least one satellite is on a line of sight. The entire system operates in a manner similar to the way a cellular telephone functions. A well-designed LEO system makes it possible for anyone to access the Internet via wireless from any point on the planet, using an antenna no more sophisticated than old-fashioned television "rabbit ears.

Some satellites revolve around the earth in elliptical orbits. These satellites move rapidly when they are near perigee, or their lowest altitude; they move slowly when they are near apogee, or their highest altitude.

Such "birds" are used by amateur radio operators, and by some commercial and government services. They require directional antennas whose orientation must be constantly adjusted to follow the satellite's path across the sky. Explore the latest enterprise mobile security technology. Enterprise mobile application development changes IT strategy.

A primer for IT. By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States.

SearchNetworking presented eight companies with Network Innovation Awards in , recognizing network advancements that ranged Automation holds great promise for smoothing the management of complex modern networks, but to reap its full benefits, you'll Obstacles facing IT adoption of automation in the network including training and trust.

Now's the time to clear these hurdles and The 5G wireless evolution is expected to bring benefits ranging from high broadband speeds to shared wired and wireless Border Gateway Protocol is the complex routing protocol that literally makes the internet work. This tutorial walks you through Middle French, from Latin satellit-, satelles attendant.

See words that rhyme with satellite Spanish Central: Translation of satellite Nglish: Translation of satellite for Spanish speakers Britannica English: Translation of satellite for Arabic speakers Britannica. Encyclopedia article about satellite. What made you want to look up satellite? Please tell us where you read or heard it including the quote, if possible.

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Test Your Knowledge - and learn some interesting things along the way. Hot heads, sticky fingers, and more. Just give it the old college essay. They're good dogs, Webster. There's more than meets the eye. How we chose 'feminism'. It is in fact a real word but that doesn't mean you should use it.

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Artificial Satellites