If an artificial statellite is orbiting the earth, it it possible for the plane of the orbit to not pass through the center of the earth? On what property of the gravitational force is your answer based?

Is it necessary for theplane of the orbit of a satellite to pass through the centre of the earth?

An artificial satelllite stays in the orbit around the earth because

If a satellite orbits as close to the earth's surface as possible,

if a satellite orbits as close to the earth's surface as possible.

An artificial satellite is orbiting at a height of 1800 km from the surface of earth. What is speed of the satellite ? (R = 6300 km)

Assertion : Plane of a satellite always passes through the centre of earth Reason : Gravitational force on satellite is always towards centre of earth.

The first artificial satellite to orbit the earth was Sputnik I.Its highest point above earths surface was 947km, and its lowest point was 228km. The center of the earth was at one focus of the elliptical orbit.The radius of the earth is 6378km. Find the eccentricity of the orbit.