circular orbital velocity

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• orbital velocity — the minimum velocity at which a body must move to maintain a given orbit. Cf. circular velocity. * * * ▪ physics       velocity sufficient to cause a natural or artificial satellite to remain in orbit. Inertia of the moving body tends to make it… …   Universalium

• orbital velocity — the minimum velocity at which a body must move to maintain a given orbit. Cf. circular velocity. * * * orbital velocity, 1. the velocity at which a body, as a satellite, revolves about another body: »Orbital velocity is 18,000 miles per hour… …   Useful english dictionary

• Orbital mechanics — A satellite orbiting the earth has a tangential velocity and an inward acceleration. Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other… …   Wikipedia

• Orbital inclination change — is an orbital maneuver aimed at changing the inclination of an orbiting body s orbit. This maneuver is also known as an orbital plane change as the plane of the orbit is tipped. This maneuver requires a change in the orbital velocity vector… …   Wikipedia

• Circular orbit — For other meanings of the term orbit , see orbit (disambiguation) A circular orbit is the orbit at a fixed distance around any point by an object rotating around a fixed axis. Below we consider a circular orbit in astrodynamics or celestial… …   Wikipedia

• Orbital perturbation analysis (spacecraft) — Isaac Newton in his Philosophiæ Naturalis Principia Mathematica demonstrated that the gravitational force between two mass points is inversely proportional to the square of the distance between the points and fully solved corresponding two body… …   Wikipedia

• Orbital speed — Not to be confused with Escape Velocity. The orbital speed of a body, generally a planet, a natural satellite, an artificial satellite, or a multiple star, is the speed at which it orbits around the barycenter of a system, usually around a more… …   Wikipedia

• Orbital state vectors — In astrodynamics or celestial dynamics orbital state vectors (sometimes state vectors) are vectors of position ( ) and velocity ( ) that together with their time (epoch) ( ) uniquely determine the state of an orbiting body. State vectors are… …   Wikipedia

• circular velocity — noun : velocity of circulation * * * the velocity at which a body must move in order to maintain an orbit at the outer edge of the earth s atmosphere. Cf. orbital velocity. * * * circular velocity noun The horizontal velocity of a body required… …   Useful english dictionary

• circular velocity — the velocity at which a body must move in order to maintain an orbit at the outer edge of the earth s atmosphere. Cf. orbital velocity. * * * …   Universalium

• Orbital elements — are the parameters required to uniquely identify a specific orbit. In celestial mechanics these elements are generally considered in classical two body systems, where a Kepler orbit is used (derived from Newton s laws of motion and Newton s law… …   Wikipedia