If a satellite is in the plane of the equator with 0 degrees inclination and at a height of about 36000 km then it is said to be in _______ orbit.
Geo-stationary
The question describes a satellite lying in the plane of the equator with 0° inclination at a height of about 36000 km.
A satellite placed at this specific altitude has an orbital period of about 24 hours, exactly matching the time the Earth takes to rotate once on its axis.
Because the satellite and the Earth turn together at the same rate and in the same direction, the satellite appears to stay fixed over one point on the equator.
Such an orbit is called a geo-stationary orbit, and it is widely used for communication and television-broadcast satellites since the ground antenna can point at a fixed spot in the sky.
A polar orbit passes over the poles, and a sun-synchronous orbit is a special near-polar orbit used for remote sensing; neither stays fixed over the equator.
An elliptical orbit has a varying height and speed, so the satellite does not remain stationary relative to the ground.
Hence, such a satellite is said to be in a Geo-stationary orbit.
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