# Orbital Velocity of Satellite

Orbital velocity of a satellite is the velocity required to put the satellite into its orbit around the Earth.

[as

*GM*=*gR*^{2}and*r*=*R*+*h*]

Important Points

- Orbital velocity is independent of the mass of the orbiting body and is always along the tangent of the orbit, i.e., satellites of deferent masses have same orbital velocity, if they are in the same orbit.
- Orbital velocity depends on the mass of central body and radius of orbit.
- For a given planet, greater the radius of orbit, lesser will be the orbital velocity of the satellite .
- Orbital velocity of satellite when it revolves very close to the surface of the planet,
*h*= 0 and*GM*=*gR*^{2}] - Close to the surface of planet,