Difference between revisions of "Orbit"

From OrbiterWiki
Jump to navigation Jump to search
(Added category.)
 
(6 intermediate revisions by 3 users not shown)
Line 1: Line 1:
[http://panties-pictures.com/free/lib/temp/kdaahq.html yes and know books] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/nkcdgx.html express outlook tutorial] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/nfhucm.html awol means] [http://indianaoutfitters.com/s/info/tmp/sdgnmt.html you make me wanna song lyrics] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/xcvtaa.html announcement birth ohio] [http://indianaoutfitters.com/s/info/tmp/dmdusd.html security surveillance cam] [http://www.lewakins.com/sr/images/cdshso.html map of illinois lakes] [http://www.biblored.org.co/agenda_actividades/programas/images/lajmss.html ma non tanto] [http://tch-voyages.com/documents/prague/896/ahjwaw.html eurodollars exchange] [http://smallbizbohol.com/democatalog/images/baner/jfudtd.html zed 24] [http://tch-voyages.com/documents/prague/896/fgcwon.html organizing tool box] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/aqcili.html put your dreams away for another day] [http://lumayagrealty.com/catalog/images/pics/mvvusq.html picture pomegranates] [http://tarsierfoundation.org/content/license/mwcegu.html easy part porsche] [http://www.norcab.com.au/joeavatiforum/templates/cache/lmgvke.html lesbian flirting] [http://xuccco.org/themes/AT-Green3/iblriu.html on demand web analytic] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/dtqlke.html paul farmer m.d.] [http://tarsierfoundation.org/content/license/pgucvc.html work and bench and uk] [http://roycemotor.com/carpics/cache/wlpmlj.html meal break law] [http://tarsierfoundation.org/content/license/hfcnqb.html 2006 camp hockey youth] [http://panties-pictures.com/free/lib/temp/wctdlq.html application education grant information technology] [http://hoosierfishing.com/phpBB/images/avatars/avatar/iboutn.html engine marketing search travel] [http://hoosierfishing.com/phpBB/images/avatars/avatar/mpgegc.html rael] [http://panties-pictures.com/free/lib/temp/rulexx.html uconn college basketball] [http://roycemotor.com/carpics/cache/ewiajq.html powder room design ideas] [http://ankelia-nature.com/catalogues/catalogues/haqhde.html scientific revolution in europe] [http://talentmodeles.com/mannequin/images/cache/irebjl.html methods of performance appraisals] [http://xuccco.org/themes/AT-Green3/pnagpq.html restore car] [http://roycemotor.com/carpics/cache/uvigka.html oregon scientific weather instruments] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/mtfvja.html store on south street in philadelphia] [http://www.lewakins.com/sr/images/tsotqx.html 10 galaxy meter radio] [http://xuccco.org/themes/AT-Green3/nvidwk.html marine air stations] [http://www.norcab.com.au/joeavatiforum/templates/cache/enwgeq.html automobile convertible top] [http://www.lewakins.com/sr/images/gnmfkj.html taboo board games] [http://www.norcab.com.au/joeavatiforum/templates/cache/tqvcdw.html make a magnetic compass] [http://panties-pictures.com/free/lib/temp/pfxlgt.html side view of a car] [http://panties-pictures.com/free/lib/temp/vbmpku.html vulcan engines] [http://www.norcab.com.au/joeavatiforum/templates/cache/avtdau.html new york bus sales llc] [http://tarsierfoundation.org/content/license/lbootg.html travel and track flight] [http://coastguard.gov.ph/content.old/license/pnnivg.html toad music] [http://www.youthfitnesssolutions.com/FTP1/page9/sqnsli.html who and whom grammar] [http://www.lewakins.com/sr/images/ehwebb.html sub chapter s taxes] [http://lumayagrealty.com/catalog/images/pics/wcoixk.html winter plant identification] [http://www.hdac.org/hdfaq/faq/buvnpa.html toshiba hdtv 30] [http://www.biblored.org.co/agenda_actividades/programas/images/iqbclo.html movie star teen] [http://panties-pictures.com/free/lib/temp/qojrfv.html rose valley lake pennsylvania] [http://asie-voyages.com/upload/images/lens/wthnfu.html postpartum health] [http://ankelia-nature.com/catalogues/catalogues/wkuesp.html amp fender] [http://lumayagrealty.com/catalog/images/pics/cqcspn.html money lots and lots of money] [http://www.biblored.org.co/agenda_actividades/programas/images/noohnw.html signs of ulcerative colitis] [http://asie-voyages.com/upload/images/lens/nqvalg.html incest sex movie clips] [http://smallbizbohol.com/democatalog/images/baner/sfhdta.html rogers mn school district] [http://smallbizbohol.com/democatalog/images/baner/loiqct.html this view is damaged. outlook 2000] [http://tch-voyages.com/documents/prague/896/xwmhqn.html nerve damage feet] [http://tch-voyages.com/documents/prague/896/oousap.html michele smith pics] [http://www.biblored.org.co/agenda_actividades/programas/images/emxwfr.html audio call conference web] [http://www.biblored.org.co/agenda_actividades/programas/images/qeknmh.html serial 2000 program] [http://indianaoutfitters.com/s/info/tmp/xoooav.html load data local] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/gedcmc.html edged two] [http://www.lewakins.com/sr/images/wgaxfa.html lake charles la home for sale] [http://tarsierfoundation.org/content/license/hcqsxf.html sound proof windows and doors] [http://www.lewakins.com/sr/images/jhvmau.html realty in winnipeg] [http://lumayagrealty.com/catalog/images/pics/plblaw.html repeticiones] [http://www.redacademica.edu.co/manejocorreo/Cliente/cache/iqptsf.html repeat] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/fhoowh.html voip bandwidth calculations] [http://www.biblored.org.co/agenda_actividades/programas/images/aognth.html rhode island job search] [http://www.biblored.org.co/agenda_actividades/programas/images/avgnlm.html arizona engineer list mailing] [http://www.norcab.com.au/joeavatiforum/templates/cache/lsdupe.html symbian gameboy] [http://www.norcab.com.au/joeavatiforum/templates/cache/padjhi.html number of online communities] [http://xuccco.org/themes/AT-Green3/jfrhar.html jason hudson] [http://www.norcab.com.au/joeavatiforum/templates/cache/fkqeoc.html java acronym] [http://coastguard.gov.ph/content.old/license/jegmjb.html screenshots vista window] [http://lumayagrealty.com/catalog/images/pics/wplcea.html 2006 federal budget deficit] [http://lumayagrealty.com/catalog/images/pics/frfuis.html pc brands] [http://asie-voyages.com/upload/images/lens/wkdsuu.html masturbation picture tip] [http://www.biblored.org.co/agenda_actividades/programas/images/xsstgq.html napoleon bonapart] [http://panties-pictures.com/free/lib/temp/rgjbtc.html lake hamilton middle school] [http://roycemotor.com/carpics/cache/chplsg.html kyoto japan hotel] [http://www.lewakins.com/sr/images/uksolt.html virginia department of assessment and taxation] [http://ankelia-nature.com/catalogues/catalogues/ufoupm.html printing machinery directories] [http://tarsierfoundation.org/content/license/xvbtqr.html minnesota north star history] [http://panties-pictures.com/free/lib/temp/xwiund.html economic inflation definition] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/ibjxcd.html american woodworking] [http://roycemotor.com/carpics/cache/dvxtbl.html plasma membrane picture] [http://www.youthfitnesssolutions.com/FTP1/page9/hpxxrt.html what is knowledge management ppt] [http://xuccco.org/themes/AT-Green3/fikddl.html plus size prom dress designers] [http://talentmodeles.com/mannequin/images/cache/tilqwi.html nevada radio stations] [http://www.biblored.org.co/agenda_actividades/programas/images/jjriah.html music recorders] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/tfnkem.html rca mp3 players lcd screen] [http://asie-voyages.com/upload/images/lens/jfjqup.html london disc jockey] [http://www.biblored.org.co/agenda_actividades/programas/images/iqbrwe.html kitchen appliances review] [http://lumayagrealty.com/catalog/images/pics/pvwrhv.html the insiders football recruiting] [http://coastguard.gov.ph/content.old/license/uxtkfk.html jet video player] [http://www.lewakins.com/sr/images/vbjqxh.html what is aspartame found in] [http://www.biblored.org.co/agenda_actividades/programas/images/elfitx.html northern michigan vacation property] [http://xuccco.org/themes/AT-Green3/nofjai.html university teaching jobs canada] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/xjqlwq.html womens leather coats] [http://ankelia-nature.com/catalogues/catalogues/figamh.html woman hater jokes] [http://xuccco.org/themes/AT-Green3/sfebij.html red blue green star wallpaper border] [http://www.hdac.org/hdfaq/faq/rktqbe.html king county property records] [http://coastguard.gov.ph/content.old/license/ugjtot.html martin business college] [http://lumayagrealty.com/catalog/images/pics/nkobsm.html ap associated press] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/ortmuv.html marshall county ky newspaper] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/scastb.html shop lifting charges] [http://hoosierfishing.com/phpBB/images/avatars/avatar/eovrmt.html window portal] [http://tch-voyages.com/documents/prague/896/hmqpuh.html listen to 70s music online] [http://hoosierfishing.com/phpBB/images/avatars/avatar/bhjqna.html lapas] [http://xuccco.org/themes/AT-Green3/crcemv.html real estate amsterdam new york] [http://roycemotor.com/carpics/cache/irltbq.html target benefit plan] [http://www.lewakins.com/sr/images/wxkbwm.html software patent copyright] [http://www.lewakins.com/sr/images/nrumed.html american humane associations] [http://tch-voyages.com/documents/prague/896/wkdlrv.html mom tosses kids in] [http://cvscaft-tcc.edu.ph/gallery/uploads/cache/guvxth.html individual investor news letters from new york] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/ckxxxn.html intellectual property in internet] [http://coastguard.gov.ph/content.old/license/sxfqjd.html audit income tax] [http://www.biblored.org.co/agenda_actividades/programas/images/booirr.html varadero travel] [http://www.biblored.org.co/agenda_actividades/programas/images/lhelsm.html love hunny] [http://indianaoutfitters.com/s/info/tmp/wowhjf.html little dealer little prices az] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/kfpgpu.html investment banking firms] [http://roycemotor.com/carpics/cache/irlwnf.html springfield virginia hilton] [http://tch-voyages.com/documents/prague/896/nwcbqc.html log home magazine] [http://lumayagrealty.com/catalog/images/pics/gwsrcq.html thermal exhaust tip] [http://www.norcab.com.au/joeavatiforum/templates/cache/iawudq.html microsoft office clips on line] [http://coastguard.gov.ph/content.old/license/jppcfo.html america naughty girl] [http://smallbizbohol.com/democatalog/images/baner/klvvti.html izmir hotel] [http://ankelia-nature.com/catalogues/catalogues/ckgwso.html advertising software tracking] [http://www.lewakins.com/sr/images/nbmxar.html maximale] [http://indianaoutfitters.com/s/info/tmp/xxnosx.html accessory boost mobile phone] [http://asie-voyages.com/upload/images/lens/slrqwt.html old wooden bridge fishing camp] [http://tch-voyages.com/documents/prague/896/mxgvjw.html whats wrong with the copyright law] [http://cvscaft-tcc.edu.ph/gallery/uploads/cache/adwfdv.html ice bucket silver] [http://panties-pictures.com/free/lib/temp/koklsl.html wild oats natural food] [http://panties-pictures.com/free/lib/temp/edebww.html recycling uk] [http://indianaoutfitters.com/s/info/tmp/dixrqb.html world cup qualify] [http://indianaoutfitters.com/s/info/tmp/sjhega.html austin smith ford] [http://talentmodeles.com/mannequin/images/cache/rhbbxi.html arkansas attorney generals] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/rwlxcj.html maps of mountain ranges] [http://lumayagrealty.com/catalog/images/pics/hjlffn.html equal exchange fair] [http://asie-voyages.com/upload/images/lens/wghmur.html a is for action lyrics] [http://www.norcab.com.au/joeavatiforum/templates/cache/tcjdmu.html typical weight gain pregnancy] [http://lumayagrealty.com/catalog/images/pics/gvagsi.html vast flames] [http://talentmodeles.com/mannequin/images/cache/kokxkw.html express financial services columbia md] [http://tarsierfoundation.org/content/license/djcgqa.html tagged ftp] [http://www.hdac.org/hdfaq/faq/epvfwl.html man leather slipper] [http://www.redacademica.edu.co/manejocorreo/Cliente/cache/kbfnoo.html texas bar associations] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/thnwuj.html adam baker charlie] [http://xuccco.org/themes/AT-Green3/wlwuel.html mail us army mil] [http://www.hdac.org/hdfaq/faq/djocqj.html north wales traffic camera] [http://www.biblored.org.co/agenda_actividades/programas/images/bawtpe.html kit homes in scotland] [http://lumayagrealty.com/catalog/images/pics/fmwfbx.html machinist employment] [http://tch-voyages.com/documents/prague/896/cccxiw.html t short] [http://cvscaft-tcc.edu.ph/gallery/uploads/cache/rbotkq.html removing moles] [http://panties-pictures.com/free/lib/temp/hklhps.html virals ads] [http://smallbizbohol.com/democatalog/images/baner/urqvit.html kids printable calendars] [http://www.hdac.org/hdfaq/faq/qrocdj.html nunoa santiago chile] [http://indianaoutfitters.com/s/info/tmp/tfrelg.html traveling to europe] [http://www.hdac.org/hdfaq/faq/njcssc.html india map north east] [http://indianaoutfitters.com/s/info/tmp/aefmgp.html new jersey traffic violations] [http://tch-voyages.com/documents/prague/896/qhwaap.html evangelism real] [http://roycemotor.com/carpics/cache/mdvfvq.html marriage compatibility questions] [http://www.redacademica.edu.co/manejocorreo/Cliente/cache/qtjohm.html euro to american conversion rate] [http://bluespringsbmx.com/4IMAGES/data/media/10/tmp/sowblq.html west alabama ice house] [http://smallbizbohol.com/democatalog/images/baner/jukxco.html miami county indiana] [http://tch-voyages.com/documents/prague/896/dpxgbh.html ipod nano player video] [http://www.norcab.com.au/joeavatiforum/templates/cache/bvioam.html las vegas car museum] [http://talentmodeles.com/mannequin/images/cache/qjswpk.html im gonna love you anyway lyrics] [http://xuccco.org/themes/AT-Green3/pujajo.html the wounded warrior project] [http://tarsierfoundation.org/content/license/fiqudm.html ebay user info] [http://smallbizbohol.com/democatalog/images/baner/uhflqt.html outlet shopping in reading pa] [http://asie-voyages.com/upload/images/lens/ancubt.html im scared of the dark] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/lhkist.html konie pl] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/njdnad.html to keep fit] [http://tarsierfoundation.org/content/license/emwvrb.html acoustic guitar songs and chords] [http://xuccco.org/themes/AT-Green3/ddjvoo.html public information display system] [http://www.redacademica.edu.co/manejocorreo/Cliente/cache/wpwhde.html smoking facts and statistics] [http://xuccco.org/themes/AT-Green3/ogdecu.html a business research] [http://www.biblored.org.co/agenda_actividades/programas/images/jjaeqk.html spanish for police officers] [http://asie-voyages.com/upload/images/lens/klwerq.html song - low rider] [http://asie-voyages.com/upload/images/lens/kjxjww.html rick berry artist] [http://smallbizbohol.com/democatalog/images/baner/scecck.html vacuums consumer reports] [http://panties-pictures.com/free/lib/temp/mlueoi.html eye eye myspace.com site] [http://www.lewakins.com/sr/images/jnrown.html tradewinds park] [http://tch-voyages.com/documents/prague/896/psfxdj.html refinance interest only] [http://ankelia-nature.com/catalogues/catalogues/boiuor.html institute software training] [http://www.biblored.org.co/agenda_actividades/programas/images/cvnoot.html apartment search web site] [http://lumayagrealty.com/catalog/images/pics/urqpbs.html security sleeve tool] [http://tch-voyages.com/documents/prague/896/rleejw.html active x not working] [http://tarsierfoundation.org/content/license/vlerui.html madrid centro] [http://panties-pictures.com/free/lib/temp/tgketd.html im scared of the dark] [http://www.lewakins.com/sr/images/bxmnpb.html sioux native american tribe] [http://www.sedbogota.edu.co/FINANCIERA/temp/tmp/plgtwh.html the american pit bull] [http://tch-voyages.com/documents/prague/896/gbujxw.html 10 simple rules mercy me] [http://cvscaft-tcc.edu.ph/gallery/uploads/cache/shpaxm.html random football facts] [http://indianaoutfitters.com/s/info/tmp/tleosp.html one of those day lyric] [http://www.biblored.org.co/agenda_actividades/programas/images/gaafju.html public storage truck rentals] [http://tarsierfoundation.org/content/license/qcfvto.html modeling photo contests] [http://indianaoutfitters.com/s/info/tmp/sjpjrx.html precious declaration] [http://coastguard.gov.ph/content.old/license/wmwjxr.html art business craft start supply] [http://tch-voyages.com/documents/prague/896/liqkcd.html ventas al detalle] [http://tarsierfoundation.org/content/license/avmnqp.html western grocery] An '''orbit''' is any path taken by one object around another object.  In the sense of space flight it refers to an object circling a central, more massive object as a result of the orbiting objects forward velocity and the central object's [[Gravity|gravitational]] pull on the orbiting object.
+
An '''orbit''' is any path taken by one object around another object.  In the sense of space flight it refers to an object circling a central, more massive object as a result of the orbiting objects forward velocity and the central object's [[Gravity|gravitational]] pull on the orbiting object. All objects not in contact with another object are in orbit.  
  
A good discussion (with illustrations) available at Wikipedia [http://en.wikipedia.org/wiki/Orbit]
+
An object in orbit influenced by the gravitational attraction of only that body is in a "Keplerian orbit", a circle, ellipse, parabola, or hyperbola, but, in the real universe, all objects are influenced by all other objects in the universe, hence, the orbit will deviate from true Keplerian motion.  
  
 +
A circular orbit has an [[eccentricity]] of zero, an elliptical orbit has an eccentricity of 0 < e < 1, an orbit with an eccentricity = 0 is a parabolic orbit, and an orbit with an eccentricity >1 are hyperbolic. Objects in parabolic and hyperbolic orbits will eventually escape the gravitational attraction of the central body. So, in Orbiter, if your ship is in a circular or elliptical orbit around a body, it will remain in an orbit around that body unless influenced by some outside force such as thrust or atmospheric drag. A ship thrusting in a direction increasing its velocity long enough, the orbit will become parabolic or hyperbolic and the ship will escape that body.
 +
 +
An object which has insufficient velocity to maintain orbit above the surface is in a "suborbit". If the central object could be reduced to a point mass, the orbiting object would be then in an elliptical orbit, but without the point mass, the object collides with the ground. An example would be throwing a baseball, football, etc., the object is in an elliptical suborbit until it collides with the ground.
 +
 +
== Orbital parameters ==
 +
Six parameters referred to as 'Keplerian elements" are used to define an orbit.
 +
{|class="wikitable"
 +
|colspan="4"|<center>'''Keplerian Elements'''</center>
 +
|-
 +
|<center>'''Element'''</center>||<center>'''Symbol'''</center>||<center>'''Unit of measure'''</center>||<center>'''Description'''</center>
 +
|-
 +
|Semimajor axis||<center>a</center>||<center>m, km, AU</center>||Defines the size of the orbit, sum of the radii of the apsides divided by 2
 +
|-
 +
|Eccentricity||<center>e</center>||||Defines the roundness of the orbit, e = 0, circular; 0 < e < 1, elliptical; e = 1, parabolic; e > 1, hyperbolic
 +
|-
 +
|Inclination||<center>i</center>||<center>°</center>||Tilt of the orbit with respect to the equator or ecliptic frame of reference 0 < 180, prograde orbit, 180 < 360, retrograde orbit
 +
|-
 +
|Longitude of the ascending node||<center>LAN</center>||<center>°</center>||Defines the angle at which the orbit crosses a reference plane from a reference longitude
 +
|-
 +
|Argument of Perapsis||<center>LPe</center>||<center>°</center>||Defines the angle at which the periapsis is from the LAN
 +
|-
 +
|Mean anomaly||<center>MnA</center>||<center>°</center>||Defines the position of the body, ship, or station with respect to the periapsis
 +
|}
 +
 +
== See also ==
 +
[[Orbital elements]]
 +
 +
 +
== External links ==
 +
[[w: Orbit|Orbit]] at Wikipedia.
 +
 +
[[Category: Articles]]
 
[[Category: Glossary]]
 
[[Category: Glossary]]
 
{{Stub}}
 
{{Stub}}

Latest revision as of 03:54, 15 October 2022

An orbit is any path taken by one object around another object. In the sense of space flight it refers to an object circling a central, more massive object as a result of the orbiting objects forward velocity and the central object's gravitational pull on the orbiting object. All objects not in contact with another object are in orbit.

An object in orbit influenced by the gravitational attraction of only that body is in a "Keplerian orbit", a circle, ellipse, parabola, or hyperbola, but, in the real universe, all objects are influenced by all other objects in the universe, hence, the orbit will deviate from true Keplerian motion.

A circular orbit has an eccentricity of zero, an elliptical orbit has an eccentricity of 0 < e < 1, an orbit with an eccentricity = 0 is a parabolic orbit, and an orbit with an eccentricity >1 are hyperbolic. Objects in parabolic and hyperbolic orbits will eventually escape the gravitational attraction of the central body. So, in Orbiter, if your ship is in a circular or elliptical orbit around a body, it will remain in an orbit around that body unless influenced by some outside force such as thrust or atmospheric drag. A ship thrusting in a direction increasing its velocity long enough, the orbit will become parabolic or hyperbolic and the ship will escape that body.

An object which has insufficient velocity to maintain orbit above the surface is in a "suborbit". If the central object could be reduced to a point mass, the orbiting object would be then in an elliptical orbit, but without the point mass, the object collides with the ground. An example would be throwing a baseball, football, etc., the object is in an elliptical suborbit until it collides with the ground.

Orbital parameters[edit]

Six parameters referred to as 'Keplerian elements" are used to define an orbit.

Keplerian Elements
Element
Symbol
Unit of measure
Description
Semimajor axis
a
m, km, AU
Defines the size of the orbit, sum of the radii of the apsides divided by 2
Eccentricity
e
Defines the roundness of the orbit, e = 0, circular; 0 < e < 1, elliptical; e = 1, parabolic; e > 1, hyperbolic
Inclination
i
°
Tilt of the orbit with respect to the equator or ecliptic frame of reference 0 < 180, prograde orbit, 180 < 360, retrograde orbit
Longitude of the ascending node
LAN
°
Defines the angle at which the orbit crosses a reference plane from a reference longitude
Argument of Perapsis
LPe
°
Defines the angle at which the periapsis is from the LAN
Mean anomaly
MnA
°
Defines the position of the body, ship, or station with respect to the periapsis

See also[edit]

Orbital elements


External links[edit]

Orbit at Wikipedia.

This article is a stub. You can help Orbiterwiki by expanding it.