A non-inclined orbit is an orbit which is contained in the plane of reference. It therefore has inclination equal to zero. If the plane of reference is the equator, these orbits are called equatorial; if the plane of reference is the ecliptic, they are called ecliptic.
As these orbits lack nodes, the ascending node is usually taken to lie in the reference direction (usually the vernal equinox), and thus the longitude of the ascending node is taken to be zero. Also, the argument of periapsis is undefined.
See also
v • d • e Orbits |
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| Orbital parameters |
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Classical orbital elements
Inclination
Longitude of the ascending node
Eccentricity
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Argument of periapsis
Semi-major axis
Mean anomaly at epoch
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Other parameters
True anomaly
Semi-minor axis
Linear eccentricity
Eccentric anomaly
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Mean longitude
True longitude
Orbital period
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| Types | |
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| Maneuvers | Bi-elliptic transfer · Geostationary transfer · Gravity assist · Hohmann transfer · Inclination change · Phasing · Rendezvous |
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| Related topics | Apsis · Celestial coordinate system · Delta-v budget · Epoch · Ephemeris · Equatorial coordinate system · Gravity turn · Ground track · Interplanetary Transport Network · Kepler\'s laws of planetary motion · Lagrangian point · n-body problem · Oberth effect · Orbit equation · Orbital state vectors · Perturbation · Retrograde and direct motion · Specific orbital energy · Specific relative angular momentum |
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| List of orbits |
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