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Orbital decay is a gradual decrease of the distance between two orbiting bodies at their closest approach (the periapsis) over many orbital periods. These orbiting bodies can be a planet and its satellite , a star and any object orbiting it, or components of any binary system .
The minimum orbital altitude is determined by the estimated time it would take for the fission products to decay to the radioactivity level present at launch. In the case of the DRACO reactor, that is about 300 years, which requires an orbit above about 700 km if the orbital decay time is to exceed that value.
The "night glider" mode is a hybrid orientation, [2] where the solar arrays track the sun during the period when the space station is illuminated, are rotated edge-on to the orbital direction when it enters in the Earth's shadow, and then are returned to their tracking position when the station re-enters sunlight. [3]
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 at the orbital nodes (i.e. the point where the initial and desired orbits intersect, the line of orbital nodes is defined by the intersection of the two orbital planes).
Gravitational waves are waves of the intensity of gravity generated by the accelerated masses of an orbital binary system that propagate as waves outward from their source at the speed of light. They were first proposed by Oliver Heaviside in 1893 and then later by Henri Poincaré in 1905 as waves similar to electromagnetic waves but the ...
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A reboost is the process of boosting the altitude of an artificial satellite in Low Earth Orbit [1] [2] [3] in order to delay its atmospheric re-entry due to orbital decay. [ 3 ] See also
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