deorbit equation

См. также в других словарях:

• Atmospheric reentry — refers to the movement of human made or natural objects as they enter the atmosphere of a planet from outer space, in the case of Earth from an altitude above the edge of space. This article primarily addresses the process of controlled reentry… …   Wikipedia

• Gravity turn — A gravity turn or zero lift turn is a maneuver (see trajectory optimization) used in launching a spacecraft into, or descending from, an orbit around a celestial body such as a planet or a moon. This launch trajectory offers two main advantages… …   Wikipedia

• Tether propulsion — systems are proposals to use long, very strong cables (known as tethers) to change the velocity of spacecraft. The tethers may be used to initiate launch, complete launch, or alter the orbit of a spacecraft. Spaceflight using this form of… …   Wikipedia

• Aerobraking — is a spaceflight maneuver that reduces the high point of an elliptical orbit (apoapsis) by flying the vehicle through the atmosphere at the low point of the orbit (periapsis), using drag to slow the spacecraft. Aerobraking saves fuel, compared to …   Wikipedia

• Sub-orbital spaceflight — A sub orbital spaceflight (or sub orbital flight) is a spaceflight in which the spacecraft reaches space, but its trajectory intersects the atmosphere or surface of the gravitating body from which it was launched, so that it does not complete one …   Wikipedia

• Tether satellite — A tether satellite is a satellite connected to another by a thin cable called a tether. The space tether idea had its origin in the late 1800s. The idea became more popular in the 1960s, and subsequently NASA examined the feasibility of the idea… …   Wikipedia

• DirecTV satellite fleet — The DirecTV satellite fleet is a group of communications satellites located at various geostationary orbits for the DirecTV satellite broadcast service and HughesNet (formerly known as DirectWAY and DirectPC) internet service. Contents 1… …   Wikipedia