Earthorbit Spacecraft cemetery List of orbits References references orbits Category Satellites Category Astrodynamics Category Earth orbits de Friedhofsorbit es rbita cementerio fr Orbite de rebut ...Refimprove date June 2008 A graveyard orbit , also called a supersynchronous orbit , junk orbit or disposal orbit , is an orbit significantly above synchronous orbit , where spacecraft are intentionally placed at the end of their operational life . It is a measure performed in order to lower the probability of collision s with operational spacecraft and of the generation of additional space debris . A graveyard orbit is used when the delta v required to perform a de orbit Orbital maneuver maneuver is too high. De orbiting a geostationary satellite requires a delta v of about 1,500 m s while re orbiting it to a graveyard orbit only requires about 11 m s. For satellites in geostationary orbit and geosynchronous orbit s, the graveyard orbit is a few hundred kilometer s above the operational orbit. The transfer to a graveyard orbit above geostationary orbit however requires the same amount of fuel that a satellite needs for approximately three months of stationkeeping . It also requires a reliable attitude control during the transfer maneuver. While most satellite operators try to perform such a maneuver at the end of the operational life, only one third succeed in doing so. Fact date August 2007 According to the Inter Agency Space Debris Coordination Committee IADC ref http www.iadc online.org docs pub IADC UNCOPUOS final.pdf ref the minimum perigee altitude math Delta H , math above the geostationary orbit is math Delta H 235 mbox km left 1000 C R frac A m right mbox km math where ... 200 km for the GEO protected zone to also permit orbit maneuvers in GEO without interference with the graveyard orbit. Another 35 kilometers tolerance engineering tolerance must be allowed for the effects ... March 18, 2002, to commit to moving to a graveyard orbit at the end of their operational life. ref ... more details
Areosynchronous orbits are class of synchronous orbit s for artificial satellite s around the planet Mars . As with all synchronous orbits, an areosynchronous orbit has an orbital period equal in length to Mars sidereal day . A satellite in areosynchronous orbit does not necessarily maintain a fixed position in the sky as seen by an observer on the surface of Mars, however such a satellite will return to the same apparent position every Martian day. An areosynchronous orbit that is equatorial in the same plane as the equator of Mars , circular, and prograde rotating about Mars axis in the same direction as the planet s surface is known as an areostationary orbit ASO . To an observer on the surface of Mars, the position of a satellite in ASO would appear to be fixed in a constant position in the sky. The ASO is analogous to a geostationary orbit GSO about Earth. cn date November 2011 Although no satellites currently occupy areosynchronous or areostationary orbits, some scientists who date November 2011 foresee a future telecommunications network for the exploration of Mars. cn date November 2011 See also Areostationary orbit List of orbits References reflist External links http marsnet.jpl.nasa.gov elements marsats.html Mars Network Marsats NASA site devoted to future communications infrastructure for Mars exploration orbits DEFAULTSORT Areosynchronous Orbit Category Astrodynamics Category Mars orbits Mars spacecraft stub it Orbita areosincrona ru ... more details
A satellite is said to occupy an inclined orbit around the Earth if the orbit exhibits an angle other than zero degrees with the equatorial plane . This angle is called the orbit s inclination . A planet is said to have an inclined orbit around the Sun if it has an angle other than zero to the plane of the ecliptic . Special case geosynchronous inclined orbit A geostationary orbit occurs when an object satellite is placed approximately convert 37,000 km mi abbr on above the Earth s equator with the characteristic that, from a fixed observation point on the Earth s surface, it appears motionless. A satellite is in an inclined orbit when its orbital plane is tipped some number of degrees from the horizontal defined by the equator. In the case of an inclined geosynchronous orbit, although the satellite remains geosynchronous that is, completing one orbit around the earth every 24 hours , it is no longer geostationary. From a fixed observation point on Earth, it would appear to trace out a small ellipse as the gravitational effects of other stellar bodies Sun & Moon exhibit influence over the satellite, as the effect accumulates over time the trace becomes an analemma with lobes oriented north southward. The satellite traces the same analemma once each sidereal day . A geostationary orbit is not stable. It takes regular manoeuvres to actively counteract the above gravitational forces. The majority of the fuel of the satellite, typically hydrazine is spent for this purpose. Otherwise, the satellite experiences a change in the inclination over time. At the end of the satellite s lifetime, when fuel approaches depletion, satellite operators may decide to omit these expensive manoeuvres ... capable of following the north south movement, Satellite Tracking earth stations. Before the fuel comes to an end, satellites can be moved to a graveyard orbit to keep the geostationary altitude free ... de Inclined Orbit fr Orbite inclin e pt rbita inclinada tr E ik y r nge ... more details
Refimprove date December 2009 Orbit insertion is the spaceflight operation of adjusting a spacecraft s momentum to allow for entry into a stable orbit around a planet , moon , or other celestial body. ref cite web url http library.thinkquest.org 03oct 02144 spacecraft orbit.htm Thinkquest.org title Orbital Insertion ref This maneuver involves either deceleration from a speed in excess of the respective body s escape velocity , or acceleration to it from a lower speed. Deceleration The first kind of orbit insertion is used when capturing into orbit around a celestial body other than Earth, owing to the excess speed of interplanetary transfer orbits relative to their destination orbits. This shedding of excess velocity is typically achieved via a rocket firing known as an orbit insertion burn. For such a maneuver, the spacecraft s engine thrusts in its direction of travel for a specified duration to slow its velocity relative to the target body enough to enter into orbit. ref cite web url ... poised for Mercury orbit insertion ref Another technique, used when the destination body has a tangible .... Generally aerobraking is used to circularize a highly elliptical capture orbit while minimizing ... PHASES ref Acceleration The second type of orbit insertion is used for newly launched satellite ... are first launched into a transfer orbit, where an additional thrust maneuver is required to circularize the elliptical orbit which results from initial space launch. The key difference between this kind of maneuver and powered trans planetary orbit insertion is the significantly lesser change in velocity required to raise or circularize an existing planetary orbit, versus canceling out the considerable velocity of interplanetary cruise. Alternatives to rockets Although current orbit insertion ... of electrically conducting space tether s to magnetically repel the Earth s magnetic field has shown ... Orbit Insertion Category Spacecraft propulsion Category Spaceflight ca Inserci orbital es ... more details
Refimprove date August 2009 Orbit determination is a branch of astronomy specialised in calculating, and hence predicting, the orbit s of objects such as moons, planets, and spacecraft . These orbits could be orbiting the Earth , or other bodies. The determination of the orbit of newly observed asteroid ... power of the range to the object. This limits radar observations to objects relatively near the Earth, such as artificial satellite s and Near Earth object s. Methods Orbit determination must take ... or the Earth in the prime focus , and that the orbit lies in a fixed plane. Euclidean vector Vector ... for making use of Global Positioning System GPS signals to determine position. History Orbit determination ... to deduce the elliptical shape of its orbit and its orientation in space, deriving his three Kepler ... of orbit determination is considered to be Anders Johan Lexell s work on computing the orbit ..., G. 236 Years Ago... in Near Earth Objects, Our Celestial Neighbors Opportunity and Risk Proceedings ... that first made the comet fly close to Earth and then would have expelled it from the Solar system . ref ... 85 bibcode 1779RSPT...69...68L ref Another milestone in orbit determination was Carl Friedrich Gauss ... result in the six orbital elements that completely describe an orbit. The theory of orbit determination ... to determine the unknown orbit of a body, some observation s of its motion with time are required. In early .... For instance, an observer on Earth tracking an asteroid must take into account both the motion of the Earth around the Sun , the rotation of the Earth, and the observer s local latitude and longitude ... are available, along with the time difference between them, the orbit can be determined ... Even if no distance information is available, an orbit can still be determined if three or more ... Orbit Determination and Satellite Navigation http www.coastalbend.edu acdem math sats Satellite Orbit Determination DEFAULTSORT Orbit Determination Category Astrometry Category Celestial mechanics ... more details
Orphan date February 2009 Infobox Company company name Orbit Semiconductor, Inc. company logo Image OrbitSemi color logo.png company type Private company Private foundation Sunnyvale, California 1985 location Sherman Oaks, California Sherman Oaks , California , USA homepage http www.orbit semi.com www.orbit semi.com Orbit Semiconductor is a recognized and established player in Field programmable gate array FPGA to Application specific integrated circuit ASIC conversions and in Application specific integrated circuit ASIC to Application specific integrated circuit ASIC conversions, with a solid experience of thousands of successful conversions in the last 14 years. br Orbit Semiconductor specializes in the low cost, high volume consumer market and the complementary low to medium volume communications, industrial, medical and military markets. Orbit Semiconductor has proprietary Gate array gate array technology delivering a flexible response at low cost. Company history Orbit Semiconductor was originally founded in 1985 by Gary P. Kennedy in Sunnyvale, California Sunnyvale , California . In 1991, Orbit Semiconductor underwent a Management buyout management buy out MBO by Gary P. Kennedy and his associates. In 1992, Orbit Semiconductor became a pioneer in the FPGA Conversion arena. Orbit Semiconductor successfully underwent an Initial public offering initial public offering IPO in 1994, trading as ORB on NASDAQ . In 1998, Orbit Semiconductor merged with DII Group, Inc., and in 2000, DII Group merged with Flextronics Semiconductor, Inc. In September 2005, AMI Semiconductor acquired the Semiconductor Division of Flextronics , Inc., and in February 2007, the Orbit team became independent ..., Inc. Completes Merger With Orbit Semiconductor, Inc. http query.nytimes.com gst fullpage.html?res 9A05E6DD1739F932A25755C0A960958260 DII Group agrees to acquire Orbit Semiconductor http www.eetimes.com ... Orbit Semiconductor website Category Fabless semiconductor companies Category Technological ... more details
No footnotes date April 2009 Deleted image removed Image Sirius orbit Earth.JPG 350px thumb Ground track of three satellite s of the Sirius Satellite Radio constellation in a tundra orbit Image Qzss 45 0.09.jpg 160px thumb Groundtrack of QZSS orbit Tundra orbit is a type of Highly Elliptical Orbit highly elliptical geosynchronous orbit with a high inclination usually near 63.4 and an orbital period of one sidereal day almost 24 hour s . A satellite placed in this orbit spends most of its time over a chosen area of the Earth , a phenomenon known as Apsis apogee dwell. The ground track of a satellite in a tundra orbit is a closed figure eight . These are conceptually similar to Molniya orbit s which have the same inclination but half the period about 12 hours . The only current user of tundra orbits is Sirius Satellite Radio , which operates a satellite constellation constellation of three satellite s. Citation needed date April 2009 The Longitude of the ascending node RAAN and mean anomaly of each satellite is offset by 120 degrees so that when one satellite moves out of position, another has passed perigee and is ready to take over. Tundra and Molniya orbits are used to provide high latitude users with higher elevation angles than a geostationary orbit. Neither the Tundra nor Molniya orbits are geostationary because that is possible only over the equator, so both orbits are elliptical to reduce the time that the satellite is away from its service area. An argument of perigee of 270 degrees places apogee at the northernmost point of the orbit. An argument of perigee of 90 degrees would likewise serve the high southern latitudes. An argument of perigee of 0 or 180 degrees would ... be better done with a conventional geostationary orbit. The Tundra and Molniya orbits use a math ... secular perturbation of the argument of perigee caused by the Earth s equatorial bulge. With any .... orbits spacecraft stub Category Orbits de Tundra Orbit fr Orbite Toundra tr Tundra y r nge ... more details
to the Earth moving in an elliptic orbit around the Sun, with the Earth moving faster when it is nearer ... Kepler orbit around the Earth with any value for semi major axis and eccentricity. http www.perseus.gr ... astronomy barycenter with elliptic orbits. In astrodynamics or celestial mechanics an elliptic orbit is a Kepler orbit with the Orbital eccentricity eccentricity less than 1 this includes the special case of a circular orbit , with eccentricity equal to zero. In a stricter sense, it is a Kepler orbit with the eccentricity greater than 0 and less than 1 thus excluding the circular orbit . In a wider sense it is a Kepler orbit with negative Specific orbital energy energy . This includes the radial elliptic orbit, with eccentricity equal to 1. In a gravitational two body problem with negative ... body with respect to the other follows an elliptic orbit. Examples of elliptic orbits include Hohmann transfer orbit , Molniya orbit and tundra orbit . Velocity Under standard assumptions the orbital speed math v , math of a body traveling along elliptic orbit can be computed from the Vis viva equation ... standard assumptions the orbital period math P , math of a body traveling along an elliptic orbit ... to that for a circular orbit with the orbit radius equal to the semi major axis math a , math , For a given ... energy math epsilon , math of elliptic orbit is negative and the orbital energy conservation equation the Vis viva equation for this orbit can take the form math v 2 over 2 mu over r mu over 2a epsilon ... the orbiting body s velocity vector the vector tangent to the instantaneous orbit and the local horizontal ... h , r , v , cos phi math where math h , math is the specific relative angular momentum of the orbit ... of motion See orbit equation Orbital parameters The state of an orbiting body at any given time is defined ... bodies they determine the full orbit. The two most general cases with these 6 degrees of freedom are the elliptic and the hyperbolic orbit. Special cases with less degrees of freedom are the circular ... more details
differs from most natural satellite satellites of other planet s in that its orbit is close to the plane of the ecliptic , and not to the Earth s equatorial plane . The lunar orbit plane is inclined ... size comparison File Lunar perturbation.jpg thumb Earth s lunar orbit perturbation basics File ... are approximations. The Moon s orbit around the Earth has many irregularities perturbation astronomy ... flow period is generally synchronized to the Moon s orbit around Earth, its phase can vary. In some ... forward along the Moon s orbit, because the Earth s rotation has carried the bulge forward. The opposing .... The Moon is gradually receding from the Earth into a higher orbit, and calculations ref ... a spin orbit resonance in which the Moon will circle the Earth in about 47 days currently 27 days , and both ... to as longitudinal libration . Because the lunar orbit is also inclined to the Earth s ecliptic ... loops in the Moon s solar orbit. Considering the Earth Moon system as a binary planet, their mutual ... orbit. Consequently the Earth s centre veers inside and outside the orbital path during each synodic ... attraction, the Moon would continue to orbit the Earth once every sidereal month . See also portal ...Not to be confused with Lunar orbit in the sense of a selenocentric orbit, that is, an orbit around the Moon The Moon completes its orbit around the Earth in approximately 27.3 days a sidereal month . The Earth and Moon orbit about their barycenter barycentre common centre of mass , which lies about gaps 4 700 km from Earth s centre about three quarters of the Earth s radius . On average, the Moon is at a distance of about gaps 385 000 km from the centre of the Earth, which corresponds to about 60 Earth radii. With a mean orbital velocity of 1,023 m s ref cite web url http solarsystem.nasa.gov planets profile.cfm?Object Moon&Display Facts title Earth s Moon Facts & Figures ... axis ref The geometric mean distance in the orbit of Ephemeride Lunaire Parisienne ELP ref gaps 384 ... more details
distinguish Orbit of the Moon Image AS8 13 2329.jpg thumbnail right 250px The Moon from lunar orbit, with planet Earth rising over the horizon, taken on the Apollo 8 mission on December 24, 1968. In astronomy , lunar orbit also known as a Selenocentric orbit refers to the planetary orbitorbit of an object around the Moon . As used in the space program , this refers not to the orbit of the Moon about the Earth , but to orbits by various manned or unmanned spacecraft around the Moon. The altitude at apoapsis point farthest from the surface for a lunar orbit is known as apolune or apocynthion , while ... lunar orbit. ref name mark Luna 3 , launched on October 4, 1959, was the first unmanned spacecraft to complete a cislunar flight, still not a lunar orbit, but a figure 8 free return trajectory which swung around the far side of the Moon and returned to the Earth. This craft provided the first ... spacecraft to actually orbit the Moon in April 1966. ref name beyers cite web last Byers first Bruce ... May 30, 1966. ref name beyers The first United States spacecraft to orbit the Moon was Lunar Orbiter ... doi accessdate 2007 02 17 ref The first orbit was an elliptical orbit , with an apolune of convert ... ch9 2.htm doi accessdate 2007 02 17 ref Then the orbit was circularized at around convert 170 nmi km ... parking orbit while the Apollo Lunar Module Lunar Module LM landed. The combined CSM LM would first enter an elliptical orbit, nominally convert 170 nmi km mi by convert 60 nmi km mi , which was then changed to a circular parking orbit of about convert 60 nmi km mi . Orbital periods vary according ... sequence with a descent orbit with a perilune of about convert 50,000 ft km nmi , chosen to avoid ... enough to cause a lunar orbit to change significantly over the course of several days ... orbit was circularized at convert 66 nmi km mi by convert 54 nmi km mi , which was expected ... rendezvous with the CSM. But the effect was overestimated by a factor of two at rendezvous the orbit ... more details
The Orbit Jet was a fictional spacecraft spaceship in the 1954 TV series Rocky Jones, Space Ranger . It strongly resembled a V 2 rocket in overall form, with a very prominent exhaust plume when flying, but had wings in addition to tailfins even its radio callsign, XV 2 relates it that wikt seminal seminal World War II design . There were references in the dialog to the engines being atomic . The Orbit Jet had a crew of two pilot and copilot , but often had three or four others on board depending on the mission and destination. It often flew from Earth to inhabited moons of Jupiter and Saturn , which it seemed to reach in hours or days of time within the story. Later in the series, another ship, the Silver Moon , was used, but it appeared almost identical to the Orbit Jet . The Orbit Jet introduced many features that would become standard equipment on later TV and movie spaceships An electronic viewscreen instead of a simple window or porthole A fantastically complicated control panel without an airplane styled control wheel or stick Power doors opening side to side as one approaches Hyperspace science fiction Subspace radio the Astrophone that allowed instantaneous communications over interplanetary distances Artificial gravity as an explained feature and plot element A cloaking device that rendered the ship invisible. The first screenshot below shows the Orbit Jet in flight. The second shows pilot Rocky and copilot Winky at the controls. The side by side crew positions facing the viewscreen, with other workstations and sliding doors behind, presage part of the bridge layout of Star Trek s Starship Enterprise Enterprise a decade later. Gallery gallery Deleted image removed Image Orbit jet.jpg Exterior Deleted image removed Image Orbit jet interior.jpg Interior gallery References No footnotes date December 2009 http reflectionsonfilmandtelevision.blogspot.com 2006 01 cult ... gst movies movie.html?v id 6018 Category Fictional vehicles Orbit Jet Category Fictional spacecraft ... more details
, both of which use Lissajous orbits at Sun Earth L2 . ref cite web title Herschel Orbit Navigation ... 05 15 ref ESA s future Gaia mission will also use a Lissajous orbit at Sun Earth L2 . ref cite web title Gaia s Lissajous Type Orbit url http sci2.esa.int interactive media flashes 5 5 1.htm publisher ESA accessdate 2006 05 15 ref In 2011, NASA transferred two of its THEMIS spacecraft from Earthorbit to Lunar orbit by way of Earth Moon L1 and L2 Lissajous orbits. ref http www.igpp.ucla.edu public ...Image Lissajous orbit l2.jpg thumb 500px Lissajous orbit around L2 In orbital mechanics , a Lissajous orbit , IPA fr li.sa. u pron , named after Jules Antoine Lissajous , is a quasi periodic orbital trajectory that an object can follow around a Lagrangian point of a three body system without requiring ... in this plane and perpendicular to it, and follow a Lissajous curve . Halo orbit s also include components ... 1167 1181 ref In practice, any orbit around Lagrangian point s L1 , L2 , or L3 is dynamically unstable ... ESA Science & Technology Orbit Navigation url http sci.esa.int science e www object index.cfm?fobjectid ... edition 3 isbn 978 1 881883 14 2 paperback , 978 0 387 71831 6 hardback ref In the case of the Earth Moon system the effect of the Orbital eccentricity eccentricity of the Moon s orbit and the effect ... Lissajous trajectories Advanced Composition Explorer ACE at Sun Earth L1 and Wilkinson Microwave Anisotropy Probe WMAP at Sun Earth L2 and also the Genesis spacecraft Genesis mission collecting solar ... ref China s lunar orbiter Chang e 2 will leave lunar orbit on June 16, 2011 and fly to L2 . ref ... by Arthur C. Clarke and Stephen Baxter, a huge shield is constructed in space to protect the Earth from a deadly solar superstorm which would have been in a Lissajous orbit as would a group of other wealthy and powerful people who sheltered opposite it at L2 in line with both Earth and Moon as well ... Design.html year 2006 orbits DEFAULTSORT Lissajous Orbit Category Orbits Category Astrodynamics ... more details
Orphan date April 2012 notability Products date February 2012 Infobox Software name Orbit Vis screenshot Image Orbit Vis version 2.0.png 250px caption Screenshot of Orbit Vis V2.0 showing the numerical and visual displays. developer George Kristiansen latest release version 2.0 programming language C operating system Windows genre Orbital mechanics Space simulator license GNU GPL Orbit Vis is an orbit simulation program which is designed to allow users to simulate a satellite in any orbit around the Earth , and to give the user data on the position and motion of the satellite in both visual and numerical form. It is based on information from the book Satellite Orbits Models, Methods and Applications , ref Satellite Orbits Models, Methods and Applications by Oliver Montenbruck and Eberhard Gill ref and is an example of an orbit propagation program utilising the Kepler Two body problem for solving elliptical orbits. ref http www.braeunig.us space orbmech.htm Orbital mechanics ref It uses the Graphics Device Interface to display the calculated orbit as it progresses. Features The program features two major parts the input and numerical display window, in which the user can enter a desired Apogee and Perigee and press the Launch button to begin the simulation, and which displays the numerical properties of the orbit in real time, and also the visual display, which consists of a sizeable window displaying the Earth and the orbiting object to scale. Also featured is a control panel which allows the user to manipulate the display window in real time. The graphical display features Multiple buffering double buffering and the ability to update the inputs while the simulation is running, along with a moveable viewpoint and the ability to pause the simulation. Version 2.0 also fixed various bugs and cleared up the interface. See also Portal Space Astronomy Two body problem Orbit ... involved DEFAULTSORT Orbit Vis Category Windows software Category Astronomy software Category ... more details
Orbit Unlimited is a science fiction novel by Poul Anderson , first published in 1961. ref cite web title Orbit Unlimited entry last first work FantasticFiction url http www.fantasticfiction.co.uk a poul anderson orbit unlimited.htm date accessdate 2007 11 30 ref Essentially a linked group of short stories, it recounts the colonisation of the planet Rustum, a fictional terrestrial world orbiting Epsilon Eridani , by a group of refugees from an authoritarian Earth planet Earth . Although habitable, Rustum s atmospheric pressure is so great that only its mountains and high plateaus are suitable for human settlement. The novel, like much of Anderson s work, has a Libertarianism libertarian subtext as the colonists flee the oppression on their home planet. Science background Although Anderson had no way of knowing this at the time of writing, a planet is now known to orbit around Epsilon Eridani , a star only 10.5 light years from earth. It is a gas giant, similar to Jupiter , and orbits its star at a distance of 3.2 A.U. every seven years. Gravitational irregularities show that at least one other planet orbits the star. However, as a character mentions in the novel pg. 17 of the 1972 Pyramid paperback edition , Epsilon Eridani was not the location of Rustum. Instead, Anderson chose the star Epsilon Eridani now known as 82 Eridani as Rustum s host star. 82 Eridani is 19.8 light years distant, categorized in the G5 stellar spectral class with approximately 97 of the mass of the Sun and 60 of its luminosity. To date, 3 hot super Earths have been confirmed in orbit around the star. 82 Eridani is listed as one of the top 100 targets of NASA s proposed Terrestrial Planet Finder mission. External references isfdb title id 431 Footnotes reflist Category 1961 novels Category 1960s science fiction novels Category American science fiction novels Category Novels by Poul Anderson 1960s sf novel stub ru ... more details
The Escape Orbit British title Open Prison is a science fiction novel by northern Irish author James White author James White , published in 1963. It was a finalist at the Nebula Award . It tells the story of an human, Warren, who is abandoned on a prison planet by an alien race, the Bugs, who are warring against Earth. Here he finds a society created by the other human prisoners. To avoid a civil war between the factions which have formed by the years, he organizes a successful escape from the planet. DEFAULTSORT Escape Orbit, The Category 1963 novels Category British science fiction novels Category Novels by James White science fiction stub it Partenza da zero ... more details
noticeable for artificial Earth satellites, especially those in low orbits. But at a large distance ... in an elliptic Kepler orbit around the Earth with any value for semi major axis and eccentricity ... two body problem , and Kepler problem . In celestial mechanics , a Kepler orbit describes the motion ... plane astronomy orbital plane in three dimensional space. A Kepler orbit can also form a straight ... tables detailing the movements of the visible planet s. Kepler s First Law is The orbit of every ... can be neglected without significant impact on accuracy. Planets that rotate such as the Earth ... orbit which follows Kepler s laws of planetary motion is called a Kepler orbit . The orbits of all ... of Mercury planet Mercury , due to general relativity . Also the orbits around the Earth of the Moon ... acceleration towards the Sun is about the same for the Earth and the satellite and therefore ... radiation pressure and Drag physics atmospheric drag being taken into account, the Kepler orbit ... True anomaly are only defined for a Kepler orbit. The use of orbital elements therefore always implies that the orbit is approximated with the Kepler orbit having these orbital elements. Mathematical ... File Kepler orbits.svg thumb An elliptic Kepler orbit with an eccentricity of 0.7, a parabolic Kepler orbit and a hyperbolic Kepler orbit with an eccentricity of 1.3. The distance to the focal point is a function ... , math and time t is slightly different for elliptic and hyperbolic orbits. For an elliptic orbit ... 27 For a hyperbolic orbit one uses the hyperbolic functions for the parameterisation NumBlk math x a cdot ... EquationNote 27 for an elliptic and with relation EquationNote 34 for a hyperbolic orbit. Note that the relations ... orbit one gets from EquationNote 20 and EquationNote 21 that NumBlk math r a cdot 1 e ... left infin E infin right math For an hyperbolic orbit one gets from EquationNote 28 and EquationNote ... orbit is NumBlk math P 2 pi cdot a cdot sqrt frac a mu math EquationRef 43 As the potential ... more details
, Russian budget gross First Orbit is a feature length, experimental documentary film about Vostok 1 , the first manned space flight around the Earth . By matching the orbit of the International ...Infobox film name First Orbit image firstorbit.jpg caption 2011 release cover director Christopher Riley ... to film Yuri s original view of the Earth from space through the International Space Station s new Cupola ISS module giant windowed cupola . The International Space Station ISS orbits the Earth ... site, near the Aral Sea, at 06 07 UT and into the nightside of Earth over the Pacific Ocean at 06 .... The astronauts have a busy schedule conducting a packed programme of experiments, Earth observations ... filming request for First Orbit was yet another challenge for the ESA mission directors, he told BBC ... shot for First Orbit are slightly to the east of the original Vostok 1 trajectory. Because the vantage ... January 2011. This new footage showed the Earth as Gagarin would have seen it almost exactly ... of the Earth on April 12, 1961, there was a crescent moon and, according to his autobiography ... as a tribute. ref name Recreating Yuri Gagarin s journey into orbit cite web url http www.wired.co.uk news archive 2011 03 24 first orbit video title Recreating Yuri Gagarin s journey into orbit work WIRED date 2011 03 24 accessdate 2011 04 20 ref Music The music in First Orbit was composed by Philip ... Orbit cameraman Paolo Nespoli without either of them knowing about the other s connection to the film project. ref name The Making Of First Orbit cite web url http www.youtube.com watch?v o3pOJae4H6Q&t 4m15s title The Making Of First Orbit YouTube video work firstorbit date 2011 04 12 accessdate 2011 04 13 ref Archive Audio The producers sourced Gagarin s original mission audio for First Orbit ... Creative Commons Attribution license . ref http www.firstorbit.org first orbit faqs Yuri Gagarin s First Orbit FAQs ref On the day of release the film was viewed 1.3 million times within 24 hours and 2.3 ... more details
wiktionarypar orbit TOCright Orbit is the gravitationally curved path of one object around a point or another body. Orbit may also refer to Computing ORBit , an object request broker ORB for CORBA Orbit Downloader , a download manager for Windows Science and mathematics Orbit anatomy , the socket in the skull which accommodates an eye Orbit dynamics , in dynamical systems Orbit group theory or symmetry orbitOrbit control theory , a particular case of the notion of orbit in group theory People William Orbit , atmospheric techno composer Popular culture Orbit Books , a UK based publisher of science fiction books and fantasy books Orbit Magazine , a Detroit based alternative publication Orbit band Orbit anthology series Orbit anthology series , a series of original science fiction anthologies, published between 1966&ndash 1980 Orbit Science Fiction , a five issue science fiction anthology series, published between 1953&ndash 1954 Orbit album Orbit album , the first album from William OrbitOrbit, a fictional Microsoft Flight Simulator X Airlines airline in Flight Simulator X Organizations Orbit Group , a UK housing association Orbit Communications Company , a former DBS satellite service in the Middle East Orbit Irrigation Products Other Orbit gum , a brand of chewing gum manufactured by the Wrigley Company Orbit mascot , the former mascot of Major League Baseball s Houston Astros Orbit scratch , is a DJ technique ArcelorMittal Orbit , a planned steel tower to be located in East London as part of the London 2012 Olympic Park See also Orbital disambiguation Lookfrom Orbit Intitle Orbit disambig zh min nan K i t bg da Bane de Orbit es rbita desambiguaci n fr Orbite homonymie ko io Orbito homonimo ja pl Orbita ujednoznacznienie pt rbita desambigua o ro Orbit ru tl Orbito tr Y r nge anlam ayr m zh ... more details
, per Wikipedia Manual of Style disambiguation pages wiktionary lowLow or LOW may refer to tocright Music Low band , an American indie rock group from Duluth, Minnesota Low David Bowie album Low David Bowie album , 1977 Low Testament album Low Testament album , 1994 LowLow EP LowLow EP , 1994 Low Kelly Clarkson song Low Kelly Clarkson song , 2003 Low Cracker song Low Cracker song , 1993 Low Flo Rida song Low Flo Rida song , 2007 Low Foo Fighters song Low Foo Fighters song , 2002 Low Camp Mulla song , 2010 Low , a song by Coldplay on the album X&Y Low , a song by R.E.M. on the album Out of Time album Out of Time Low , a song by Silverchair on the album Young Modern People Abiel Abbot Low 1811 1893 , American entrepreneur and philanthropist Albert Peter Low 1861 1942 , Canadian geologist and athlete Archibald Low 1888 1956 , British scientist and inventor Dave Low died 1916 , Australian rules footballer David Low agriculturalist 1786 1859 , Scottish agriculturalist David Low cartoonist 1891 1963 , New Zealand political cartoonist Edward Low 1690 1724 , English pirate Frank J. Low 1933 2009 , American physicist G. David Low 1956 2008 , American astronaut George Low 1926 1984 , American NASA administrator George Low Medal of Honor born 1847 , U.S. Navy sailor Harriet Low 1809 1877 , American diarist Hugh Low 1824 1905 , British colonial administrator and naturalist Joachim ... Norman Low 1914 1994 , Scottish footballer and football manager Rochelle Low born 1969 , Canadian field hockey player Seth Low 1850 1916 , American educator and politician Other uses Low complexity , a concept in computational complexity theory Low computability Low, Quebec , Canada LOW Festival , a cultural festival Low pressure area , a concept in meteorology Lo Wu Station , a rail station, MTR code LOW Louise Weiss building , the seat of the European Parliament Lunar Occultation Workbench , a free astronomical software package for computing lunar occultations . See also Low Island disambiguation ... more details
orbits for the escape from Earthorbit by the ion driven SMART 1 spacecraft http sci.esa.int ...In astronomy , and in particular in astrodynamics , the osculating orbit of an object in space at a given moment of time is the gravitational Kepler orbit i.e. ellipse or other conic that it would have about its central body corresponding to its actual position and velocity for that given moment of time if perturbations were not present. ref F R Moulton, Introduction to Celestial Mechanics , 1902, Dover reprint 1970 , at pp.322 3. ref An osculating orbit and the object s position upon it can be fully described by the six standard Keplerian orbital elements osculating elements , which are easy to calculate as long as one knows the object s position and velocity relative to the central body. The osculating elements would remain constant in the absence of perturbation astronomy perturbation s. However, real astronomical orbits experience perturbations that cause the osculating elements to evolve, sometimes very quickly. In cases where general celestial mechanical analyses of the motion have been carried out as they have been for the major planets, the Moon, and other planetary satellites , the orbit can be described by a set of mean elements with secular and periodic terms. In the case ... s osculating orbit is precisely tangent to its actual orbit, with the tangent point being the object s location &ndash and has the same curvature as the orbit would have in the absence of perturbing forces. Perturbation astronomy Perturbation s that cause an object s osculating orbit to change ... spheroid . A third body or multiple other bodies whose gravity perturbs the object s orbit, for example the effect of the Moon s gravity on objects orbiting Earth. A non gravitational force acting ... pressure Solar wind pressure Switch to a non inertial reference frame e.g. when a satellite s orbit ... astro ph 0305344 . ref See also Kepler orbit Eccentricity vector Orbital elements Contact mathematics ... more details
Unreferenced date December 2009 Orphan date October 2008 Chip and Orbit is a children s television program starring two animated robot s in five minute long episode s. DEFAULTSORT Chip And Orbit Category Children s television series Child tv prog stub ... more details
In stellar dynamics a box orbit refers to a particular type of orbit which can be seen in triaxial systems, that is, systems which do not possess a symmetry around any of its Coordinate axis axes . They contrast with the loop orbit s which are observed in spherically symmetric or axisymmetric systems. In a box orbit, the star oscillates independently along the three different axes as it moves through the system. As a result of this motion, it fills in a roughly box shaped region of space. Unlike loop orbits, the stars on box orbits can come arbitrarily close to the center of the system. As a special case, if the frequencies of oscillation in different directions are commensurability mathematics commensurate , the orbit will lie on a one or two dimensional manifold and can avoid the center. ref Citation last Merritt first D. author link David Merritt last2 Valluri first2 M. title Resonant Orbits in Triaxial Galaxies journal The Astronomical Journal volume 118 pages 1177 1189 date September 1999 year 1999 arxiv astro ph 9903452 bibcode 1999AJ....118.1177M doi 10.1086 301012 ref Such orbits are sometimes called boxlet s . border 0 cellpadding 2 align center Examples of box orbits in 2 dimensions Image Box orbit begin.svg 220px Beginning of a box orbit Image Box orbit full.svg 220px Many cycles of a box orbit Image Box orbit resonance.svg 220px A closed box orbit align center Beginning of a box orbit align center Many cycles of a box orbit align center A closed box orbit References reflist See also Horseshoe orbit Lissajous curves List of orbits Category Orbits orbits zh ... more details
Multiple issues lead too short April 2011 unreferenced March 2008 notability April 2011 An orbit is a type of scratching scratch used by turntablist s. It is generally any scratch that incorporates both a forward and backward movement, or vice versa, of the gramophone record record in sequence. Creation The orbit was developed by DJ Disk who incorporated the flare scratch flare after being shown by DJ Q Bert . Technique Usually when someone is referring to an orbit , they are most likely talking about flare orbits. For example, A 1 click forward flare and a 1 click backward flare in quick succession altogether creating 4 very quick distinct sounds would be a 1 click orbit. A 2 click forward flare and a 2 click backward flare in quick succession altogether creating 6 very distinct sounds would be a 2 click orbit, etc. Orbits can be performed once as a single orbit move, or sequenced to produce a Frequency cyclical never ending type of orbit sound. External links http dj.wikia.com wiki Scratching OrbitOrbit scratch at DJ Techniques wiki DEFAULTSORT Orbit Scratch Category Musical techniques Category DJing Category Sound production ... more details
evolve, a normal human. These can be basis for little green men . Life in orbit The Sino Japanese ... their orbit decay have been utilized to the mutual benefit of the entire community. Freedom Station ... altogether. Earth No one in space will ever dream of setting foot on Earth, since most are second and possibly ... more details
refimprove date April 2011 about the housing association group in England the building company in Australia Orbit Homes Orbit Group is a group of housing association s providing affordable housing to around 33,000 households in England, mainly in the Midlands, East Anglia and the south east. ref http www.orbit.org.uk main.cfm?Type WHAT ref History Orbit Housing Association was established in 1966. ref http www.orbit.org.uk main.cfm?Type HISTORY ref In 1998 the company established Orbit Bexley Housing Association to take on the management of the 4,500 transferred from the London Borough of Bexley, under a process known as large scale voluntary transfer LSVT . Thanet Community Housing Association joined the group in 2004 and brought with it stock in east Kent . In October 2007 Orbit Bexley and Thanet Community were merged to form Orbit South. Orbit is active in promoting shared ownership as well as providing homes for rent. In 2010, Orbit helped 117 families through the Government s Mortgage Rescue scheme, more than any other association. ref http www.24dash.com news Housing 2010 05 04 Orbit Group achieves highest number of mortgage rescues in the country Orbit Group achieves highest number of mortgage rescues in the country , 24dash , 4 May 2010 ref References Reflist External links http www.orbit.org.uk Official Site UK company stub Category Housing associations Category 1966 establishments ... more details
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