Watch the satellite, with either a telescope or a very highly directional radio antenna. An observation period of twelve hours will be long enough to answer the question. If the satellite appears to move in the sky by more than a few tenths of a degree during that time, then it is not in geostationary orbit.
me nuh care
It appears to remain in the same spot above the earth.
Geostationary satellite
Aryabhatta
A geostationary satellite does not trace a path over the surface of the earth because that is what geostationary means - the satellite is stationary over a point on the Earth.
A geostationary orbit will keep the satellite in one area relative to the surface
Geostationary satellites are in an orbit that's 22,282 mi (35,786 km) above the surface of the Earth. For more on Geostationary satellite orbits, visit http://www.idirect.net/Company/Satellite-Basics/How-Satellite-Works.aspx
they fly in air
No. A geostationary satellite appears to be stationary in the sky, which means not moving. This is a big part of the reason why it is referred to as a geo'stationary' satellite.
A geostationary satellite appears to stand still to a viewer anywhere on the earth, not just on the equator.
It should be possible to have the perfectly geostationary satellites. But it is not possible. Perfectly geostationary satellite can not be made. Such satellite is pulled away by other objects like moon, sun and other planets from different directions. This force changes the velocity of the satellites.
Aryabhata in 1975