Which factor is not needed when calculating the velocity of a satellite orbiting a planet?(1 point) Responses the mass of the planet the mass of the planet the mass of the satellite the mass of the satellite the universal gravitational constant the universal gravitational constant the orbital radius of the satellite the orbital radius of the satellite

When calculating the velocity of a satellite orbiting a planet, the factor that is not needed is **the mass of the satellite**.

The velocity can be determined using the formula for circular orbits, which is given by:

\[
v = \sqrt{\frac{GM}{r}}
\]

where:
- \( v \) is the orbital velocity,
- \( G \) is the universal gravitational constant,
- \( M \) is the mass of the planet,
- \( r \) is the orbital radius (distance from the center of the planet to the satellite).

The mass of the satellite does not affect the orbital velocity in this scenario.