Question

Sun synchrnomus and geostationary satellite

Answer 1

Geo-synchronous orbits are those orbits in which object revolves in the same time as taken by earth rotation on its axis. Hence, an object in geo-synchronous will always appear stationary at all times from earth. A geo-stationary orbit is a geo-synchronous orbit exactly above equator. With fixed latitude & eccentricity, satellites placed in geo-synchronous orbit will give easy information on weather & communication without monitoring the antenna for signal every single time !

On the other hand, a sun-synchronous orbit faces sun at all times in such a way that an object in its orbit appears ascending or descending from earth at same position at same local time every day. This is because for an object in sun-synchronous orbit, surface illumination angle matches mean solar time also sometimes called as sidereal day of earth. Since it is always lighted, satellite in sun-synchronous orbit is best-suited for Earth observation purposes such as Remote sensing giving a clear & bright view of earth at all times from its imagery !

Answer 2

while geostationary satellites can have any inclination, they key difference to geostationary orbit is the fact that they lie on the same plane as the equator.geostationary orbits fall in the same category as geostationary orbits, but with that one special quality of being parked over the equator.
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