YAMAL-200 COMMUNICATIONS SATELLITE . Spacecraft Yamal-100, Yamal-200 were developed by the Corporation based on the S.P.Korolev RSC Energia-designed Multi-purpose Satellite Bus under a contract with Gascom within the framework of the Russian Federal SpaceProgram. ... Yamal-200 satellites were launched on November 24, 2003 at 9 hours 22 minutes, Moscow Time. Proton-K launch vehicle put the orbital module into its reference orbit. ... Orbit . ... Official WEB-site of S.P.Korolev RSC Energia . ...

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• RSC "Energia" - Automatic Space Systems
• S.P. Korolev RSC Energia - News

... une distance de 6. 6 rayons de la terre (42,000 km soit 26,000 milles), ces satellites accomplissent une orbite par jour , donc tournent avec la terre, et restent toujours au-dessus du m?me point de celle ci. ... terre. ... Encore une autre application est le r?seau de 24 satellites du " Syst?me de Position Global(mondial) " (GPS), sur des orbites circulaires distantes d'environ 4.1 rayons de la terre (26,000 km soit 16,000 milles). ... La derni?re d'entre elle par une bombe t?l?guid?e par GPS. ...

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• Satellites with commercial missions
• Polar Orbiting Satellites

This groups includes about 200 communication satellites ("comsats") scattered in synchronous orbits above the Earth's equator. ... 6 Earth radii (42,000 km or 26,000 miles), these satellite make one orbit per day, and therefore as the Earth turns, they always stay above the same ground station. ... Still another application is the 24-satellite network of the "Global Positioning System" (GPS), in circular orbits at distances of about 4.1 Earth radii (26,000 km or 16,000 miles). ...

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• Polar Orbiting Satellites
• Space Weather
• NewsLine of RosBusinessConsulting

... The necessity of simultaneous access to one communication channel by many users, e.g., in satellite communication systems or cellular telephony, has led to the development of the corresponding standards: FDMA (Frequency Division Multiple Access) and TDMA (Frequency Division Multiple Access). ... There is a number of ideas for chaotic signal applications in multiple-access systems, but as a rule, chaotic signals are used there only as efficient and versatile means of quasi-noise signal formation. ...

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• Direct Chaos Communications - InformChaos Lab.
• CDMA COMMUNICATIONS USING MAPS WITH STORED INFORMATION - ECCTD-97
• Basic Principles of Direct Chaotic Communications - NDCS-03

... Tonight's Sky . ... Observing . ... Sky this Month . ... Sky this Week . ... Astronomy for Kids . ... Communication failure of X-ray astronomy satellite т??Hitomiт?? ... The Japan Aerospace Exploration Agency (JAXA) found that communication with the X-ray astronomy satellite Hitomi (ASTRO-H), launched on February 17, 2016, failed from the start of its operation originally scheduled at 16:40, Saturday March 26 (JST). ... Only registered members of Astronomy.com are allowed to comment on this article....

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Optical Communication Experiment using Very Small Optical transmitter with SLR station National Institute of Information and Communications Technology, Japan Space Communications System Laboratory Hiroo Kunimori and VSOTA TEAM Sep 24, 2012 WPLTN Technical Workshop@St.Petersburg, Russia Table of Contents Backgound:HODOYOSHI Project JapaneseHODOYOHI= Reasonable Reliability Engineering to develop series of 50kg Satellite. ... How to share wavelength communication beam and ranging beams. ...

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... The tracking system works in micro-step regime with a computer step of correction = 0.003 arcsec per second of time and a maximum speed of correction up to 4.6 arcsec per second of time. ... The APD module was constructed for performing experiments of receiving of 2 Mbps signals from “ARTEMIS” using the Cassegrain focus of 0.7m telescope. ... GaAs PIN photo diode. ... Laser module with thermoelectric stabilisation of laser diode. ... Electronic module for turbulence compensation system . ...

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• Air Optical Communication Systems
• Volodymyr P Kuz'kov
• Publications

. The XMM-Newton website has moved to the following location: . http://www.cosmos.esa.int/web/xmm-newton

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Astronomy Picture of the Day . Satellites Collide in Low Earth Orbit . ... Explanation: How often do satellites collide? Although minuscule space debris may strike any satellite on occasion, the first known collision between time two full satellites occurred only last week. ... The collision occurred in low Earth orbit only 750 kilometers up, a height shared by many satellites but significantly higher than the 350-km high human-occupied International Space Station . ... The First Explorer . ...

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• The Satellites that Surround Earth
• Астронет > The Satellites that Surround Earth
• The Astronaut Who Captured a Satellite

... Gallery . ... US 'Echo' Satellite, 1960 . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . ... Title: US 'Echo' Satellite, 1960 . Description: The US 'Echo 1' satellite was an experimental communications satellite - effectively, it was a giant metallised balloon place into orbit. ... US 'Echo' Satellite, 1960 The US 'Echo 1' satellite was an experimental communications satellite - effectively, it was a giant metallised balloon place into orbit. ...

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... In an unprecedented space collision, a commercial Iridium communications satellite and a presumably defunct Russian Cosmos satellite ran into each other Tuesday above northern Siberia, creating a cloud of wreckage, officials said today. ... The international space station does not appear to be threatened by the debris, they said, but it's not yet clear whether it poses a risk to any other military or civilian satellites. ... International Year of Astronomy, Ireland National Node . ...

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• Armagh Observatory

... 2003 July 14 . The Satellites that Surround Earth . Illustration Credit: P. C.-W. Fu A. Hanson ( Indiana ), P. Frisch ( Chicago ), NASA . ... One common type of orbit is geostationary where a satellite will appear to hover above one point on Earth's equator. ... The above animated sequence starts by showing the halo of Earth's satellites , including the ring at geostationary, and finishes by zooming in on the only one currently hosting humans: the International Space Station . ... About APOD | ...

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• APOD: 2004 September 28 - Aurora Over a Communications Tower
• APOD: 2013 February 1 - Atlas V Launches TDRS-K
• APOD: April 2, 1998 - Iridium Flare

Contents. planet: 5 - Jupiter satellites: J6 - Himalia : 8, J7 - Elara : 8, J8 - Pasiphae : 16, J10 - Lysithea : 6, J11 - Carme : 8, J12 - Ananke : 8 total number: 54 type: absolute dates: 2003-2003 observatory: 291 - LPL/Spacewatch II 568 - Mauna Kea 608 - Haleakala-AMOS (NEAT/MSSS) 644 - Palomar Mountain/NEAT 704 - Lincoln Laboratory ETS, New Mexico Reference. ... Hour of right ascension (alpha, h) 6. Minute of right ascension (alpha, m) 7. ... Degree of declination (delta, deg) 9. ...

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• jo0003
• jo1016
• jo0023

. - back to the Virtual Space Museum index. - how to view VRML's, etc... A cool clickable scheme of Mir base module . Mir base module . From Shuttle to Mir . Mir fly-around (VRML) . Mir fly-around (VRML), with Soyuz, Progress and Shuttle . Communication satellite Luch (Altair) . Core module in assembly building . Mir, front view . Right side of Mir . Bottom view . Kristall module . docking mechanism . Luch (Altair) communication satellite . "Space motorcycle" .

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... 2000 . ... Сегодня: 10 апреля 2016 г. [Boeing] Корпорация Boeing объявила о завершении процедуры приобретения фирмы Hughes Space Communications, которая до этого была спутниковым подразделением корпорации Hughes и одним из ведущих производителей спутников связи в мире. В результате этой сделки новая компания стала подразделением корпорации Boeing, и называться она будет Boeing Satellite Systems. Ее штаб-квартира будет располагаться в бывшем офисе Hughes Space and Communications. ...

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... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

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Ground Support of RadioAstron . Control and Tracking Stations . RadioAstron satellite control (command transmission, telemetry, orbit measurements) will be conducted from Evpatoria and Bear Lake control stations. ... Coarse orbit measurements will be carried out from control stations. Each measurement takes ten minutes. ... Orbit measurements at tracking stations give only radial component of spacecraft velocity but the measurements are going continuously during observing sessions. ...

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• Contingency Plans

Communications For Your Astronomy Event . Articles | ... John Huggins, December 19, 2005 . ... Citizens Band Radio - The original . Multi-Use Radio Service . Family Radio Service (FRS) . General Mobile Radio Service . Hybrid Radios . Amateur Radio Service . ... Does your event need communications? ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

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XPA supports both inet and unix (local) socket communication. XPA uses sockets for communication between processes. It supports three methods of socket communication: inet, localhost, and unix. ... You can set up a different method by typing something like: setenv XPA_METHOD local # unix csh XPA_METHOD=local; export XPA_METHOD # unix sh, bash, windows/cygwin set XPA_METHOD=localhost # dos/windows The options for XPA_METHOD are: inet , unix (or local ), and localhost . ... Go to XPA Help Index ...

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• The XPA Messaging System
• Introduction to XPA
• XPA Communication Between Hosts