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...so employ their sails to change the shape or velocity of more conventional orbits, depending upon the purpose of the particular statite. ...', Vol. 13, 1989, pp. 229-234</ref> (not to be confused with the type of [[halo orbit]] discovered by Robert Farquhar). Subsequently, the terms "non-[[Kepl ...

...2-03-22 }}</ref> becoming an [[artificial satellite]]. An [[orbiter]] is a spacecraft designed for orbital insertion.<ref name="d979">{{cite web | title=Definiti ...ti-body system like the [[Earth–Moon system]]. (For example, NASA used a [[halo orbit]] for the [[CAPSTONE]] mission.) ...

[[File:Orbits schematic edit.png|thumb|upright=1.4|Space of high Earth orbits (HEO), between [[medium Earth orbit]]s (MEO) and the [[orbit of the Moon]]. ...Earth]].<ref>{{cite web |date=2009-09-04 |title=Catalog of Earth Satellite Orbits |url=https://earthobservatory.nasa.gov/features/OrbitsCatalog/page1.php |pa ...

...Earth orbit]] satellites, the effects of [[Orbital perturbation analysis (spacecraft)|non-Keplerian]] forces, i.e. the deviations of the gravitational force of ...burns, the smallest deviation in position or velocity would result in the spacecraft leaving orbit completely.<ref name=esa20090614/> ...

...e orbits are not circular. When farthest from the Moon (at [[apoapsis]]) a spacecraft is said to be at '''apolune''', '''apocynthion''', or '''aposelene'''. When ==Perturbation effects and low orbits== ...

...ons where [[trajectories]] through [[Outer space|space]] can be redirected using little or no energy. These points have the peculiar property of allowing ob ...rred to as "[[Lagrange point]]s", which are orbital solutions for circular orbits in the case when one body is significantly more massive. ...

* [[Cluster (spacecraft)]], constellation of four European Space Agency spacecraft * [[Cluster II (spacecraft)]], a European Space Agency mission to study the magnetosphere ...

| orbit_regime = [[Halo orbit]] ...copes, a beam combiner spacecraft, and a separate power and communications spacecraft.<ref name='Bulletin103-2000'/> ...

{{Short description|Transfer manoeuvre between two orbits}} ...cal transfer orbit]] that is [[tangent]]ial to both the initial and target orbits. The maneuver uses two [[impulse (physics)|impulsive]] engine burns: the fi ...

...n]]. It is calculated as the sum of the delta-v required to perform each [[Spacecraft propulsion|propulsive]] [[orbital maneuver|maneuver]] needed during the mis ...and losing speed cost an equal effort. An atmosphere can be used to slow a spacecraft by [[aerobraking]]. ...

...per belt object [[List of minor planets visited by spacecraft|visited by a spacecraft]].]] [[File:Cubewanos.png|thumb|The orbits of various cubewanos compared to the orbit of [[Neptune]] (blue) and [[Plut ...

...e system was more thoroughly investigated in the 1990s by the ''[[Galileo (spacecraft)|Galileo]]'' orbiter.<ref name=Ockert-Bell1999/> The main ring has also bee ...t has four main components: a thick inner torus of particles known as the "halo ring"; a relatively bright, exceptionally thin "main ring"; and two wide, t ...

| spacecraft = Explorer LIX ...nched on 12 August 1978 into a [[heliocentric orbit]]. It was one of three spacecraft, along with the mother/daughter pair of [[ISEE-1]] and [[ISEE-2]], built fo ...

| image = NASA SOHO spacecraft.png | orbit_regime = [[Halo orbit]] ...

...craft, then is discarded after transfer of crew and payload. Only the main spacecraft returns to Earth.<ref>{{YouTube|vB7AA7B9hTI|"Lunar Orbit Rendezvous" – 1968 ...ght in a single rocket stack. However, variants where the landers and main spacecraft travel separately, such as the lunar landing plans proposed for [[Shuttle-D ...

*NASA's [[Genesis (spacecraft)|Genesis]] probe collected solar wind samples at {{L1}} from December 3, 20 * The [[Solar and Heliospheric Observatory]] (SOHO) in a halo orbit around L1 ...

...t description|Unexplained observed excessive energy during Earth flybys of spacecraft}} ...ected change in [[acceleration]] for [[gravitational slingshot|flybys]] of spacecraft?}} ...

{{Short description|American solar research spacecraft}} | image = DSCOVR spacecraft model.png ...

...nisotropy Probe trajectory.gif |thumb |upright=1.35|right| An example of a spacecraft at Sun-Earth L2, the Wilkinson Microwave Anisotropy Probe, or WMAP<br>{{leg ...tighter [[Lissajous orbit]] around L₂, while Euclid follows a [[halo orbit]] similar to JWST. Each of the space observatories benefit from being ...

...ld only be a few minutes, and depending on the orbits and positions in the orbits, the system would have a worldwide range. There would be no need to deploy ...uclear strikes]]. The novel describes their use in planetary sieges, where spacecraft or orbital platforms fire dense, inert projectiles to penetrate defenses an ...