List of orbits - Wikipedia, the free encyclopedia
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The following is a list of types of orbits: • Galactocentric orbit: An orbit about the center of a galaxy. The Sun follows this type of orbit about the galactic center of the Milky Way. • Heliocentric...
en.wikipedia.org/wiki/List_of_orbits
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When a satellite circles close to Earth we say it's in Low Earth Orbit (LEO). Satellites in LEO are just 200 - 500 miles (320 - 800 kilometers) high. Because they orbit so close to Earth, they must travel very fast so gravity won't pull them back into the atmosphere.
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www.thetech.org/exhibits/online/satellite/4/4a/4a.1.htm...
www.thetech.org/exhibits/online/satellite/4/4a/4a.1.html
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A low earth orbit (LEO), or medium earth orbit (MEO) describes a satellite which circles close to the Earth. Generally, LEOs have altitudes of around 300 – 1000 km with low inclination angles, and MEOs have altitudes of around 10,000 km.
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www.satcom.co.uk/article.asp?article=11
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AIUB is, as a member of the EGG-C Consortium lead by the Technical University of Munich (Institut für Astronomische und Physikalische Geodäsie), is developing algorithms for LEO precise orbit determination for ESA's GOCE mission, which strives for the determination of the Earth's gravity field with...
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www.research.unibe.ch/abstracts/A_396.html
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According to some, LEO includes orbits having apogees (high points) and perigees (low points) between about 100 km and 1,500 km. Others extend that range up to 2,000 or 3,000 km. In some cases, the distinction between LEO and MEO (medium Earth orbit) is dropped and LEO is considered to be any orbit below...
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www.daviddarling.info/encyclopedia/L/LEO.html
www.daviddarling.info/encyclopedia/L/LEO.html
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The first IGS LEO orbit campaign was initiated in October 2001 for the CHAMP satellite. The second campaign, for JASON-1, started early 2003. In principle further campaigns will be organised for any GPS LEO satellite for which data becomes available during the course of the Pilot Project.
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nng.esoc.esa.de/gps/campaigns.html
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A batch filter has been designed to autonomously estimate the orbit of a LEO spacecraft using data only from a magnetometer and a sun sensor. The goal of this study has been to prove the feasibility of a proposed low cost, moderate accuracy autonomous orbit determination system. ... See this document in CiteSeerX!
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citeseer.ist.psu.edu/397431.html
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Current low earth orbit (LEO) satellites contributing to the GOS; Information maintained by WMO Space Programme on behalf of CGMS; (This table was last updated on 19 October 2009) ... Orbit type; ECT=Equator Crossing Time (for sun-synchronous orbits)
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www.wmo.int/pages/prog/sat/GOSleo.html
www.wmo.int/pages/prog/sat/GOSleo.html
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Low Earth Orbit (LEO) refers to a satellite which orbits the earth at altitudes between (very roughly) 200 miles and 930 miles. ... This thesis evaluates the survivability of the proposed Iridium Low Earth Orbit (LEO) Satellite Network. In addition to the complete Iridium constellation, three degraded Iridium...
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www.tech-faq.com/low-earth-orbit.shtml
www.tech-faq.com/low-earth-orbit.shtml
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