The altitude
of the satellite's orbit is divided into three types:
1. orbit relative to Earth. (Geosynchronous Orbit) orbiting this kind of rotation rate of the Earth's rotation. Or axis of rotation (Rotation Rate) of the world (one day equals 24 hours of film Apocalypse) or so-called geostationary orbit, because the orbit of the Earth rotates around itself. The inclination of the orbit. (Inclination) is equal to 0, so-called static orbit. (Geostationary Orbit) as it seems. No satellite mobile and motionless above the Equator. These satellites orbit. It is useful to have extensive coverage. And orbit above the Earth's surface, much like a meteorological satellite. And satellite communications
2. Orbit relative to the sun (Sun-Synchronous Orbit) remote sensing satellites such as Landsat's global majority. Elevation of the ground below the orbit relative to Earth. Orbit relative to the sun means that orbit the orbital plane (Orbital Plane) rotate around itself within one year, as well as the presence of the sun first round in each year of the satellite's orbit type is. Can be surveyed by keeping the angle of incidence of the sun, a constant
3. Orbit revolving back to the original (Recurrent Orbit) and semi-current orbit back to the original. (Semi-Recurrent Orbit) cyclical nature of the orbit and return to orbit was meant to come back to the original vertical position (Nadir) in orbit around the first day of the semi-circulated back to the original. Will return to its original vertical position in N days (N days rather than one day), which orbit has advantages over all the Earth's surface is covered.
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