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Orbital elements

Orbital elements are the parameters required to uniquely identify a specific orbit. In celestial mechanics these elements are considered in two-body systems using a Kepler orbit. There are many different ways to mathematically describe the same orbit, but certain schemes are commonly used in astronomy and orbital mechanics.

Common orbital elements by type, Common sets of elements & Perturbations and elemental variance

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Common orbital elements by type

EccentricityCircleParabolaHyperbolaSemi-major axis
43 related topics

Common sets of elements

SingularityParabolic trajectoriesEpochLinear functionNASA
17 related topics

Perturbations and elemental variance

NewtonianEllipseHyperbolaGravitationalNon-sphericity
15 related topics

Overview

ParametersOrbitCelestial mechanicsTwo-body systemsKepler orbit
22 related topics

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Overview

Required parameters

Common orbital elements by type

Common sets of elements

Perturbations and elemental variance

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Map overview Semantic statistics

Orbital elements

Nodes107
Edges106
Triples105
Avg. degree1.98
Density0.018692
Components1

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Orbital elements

Top relations

related to External links · 44
Orbital elements → AMSAT, April, Archived, Bibcode, Celestrak, Command, Control, Dynamics, Euler, FAQ, Function, Guidance, Gurfil, IAU SOFA, Introduction, Journal, JPL, July, Keplerian, Library
related to Epoch-describing elements · 21
Orbital elements → Alternatively, Argument, As, Because, E0, Eccentric, Epoch, If, L0, Like, M0, Mean, Sometimes, T0, The, This, Time, True, Two, Unlike
related to Perturbations and elemental variance · 14
Orbital elements → Delaunay, Evolution, Gauss, Hill, Keplerian, Lagrange, Newtonian, Perturbed, Poincaré, Real, The, This, Unperturbed, Usually
related to Two-line elements · 9
Orbital elements → ASCII, Earth, M0, NASA, NORAD, Orbital, Since, The, TLE
related to Delaunay variables · 8
Orbital elements → Charles-Eugène Delaunay, Commonly, Delaunay, Keplerian, Moon, Omega, The, The Delaunay
related to Required parameters · 8
Orbital elements → Cartesian, If, Kepler's, Keplerian, Such, The, These, This
see also · 1
Orbital elements → Apparent

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Important terminology

elements orbit periapsis orbital body mean orbits time anomaly used displaystyle eccentricity epoch semi-major axis using defined longitude orbiting describe

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Orbital elementsrelated to Delaunay variablesThe Delaunay0.60section
Orbital elementsrelated to Delaunay variablesCharles-Eugène Delaunay0.60section
Orbital elementsrelated to Delaunay variablesMoon0.60section
Orbital elementsrelated to Delaunay variablesCommonly0.60section
Orbital elementsrelated to Delaunay variablesDelaunay0.60section
Orbital elementsrelated to Delaunay variablesThe0.60section
Orbital elementsrelated to Delaunay variablesKeplerian0.60section
Orbital elementsrelated to Delaunay variablesOmega0.60section
Orbital elementsrelated to Epoch-describing elementsTwo0.60section
Orbital elementsrelated to Epoch-describing elementsIf0.60section
Orbital elementsrelated to Epoch-describing elementsEpoch0.60section
Orbital elementsrelated to Epoch-describing elementsAlternatively0.60section

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