The orbital velocity is not a single value but rather a calculated value that depends on several factors. It's the speed at which an object needs to be traveling to maintain a stable orbit around another object.

Here's the formula for orbital velocity:

v = √(GM/r)

where:

* v is the orbital velocity

* G is the gravitational constant (6.674 x 10^-11 m^3 kg^-1 s^-2)

* M is the mass of the object being orbited (e.g., the Earth)

* r is the distance between the center of the orbiting object and the center of the object being orbited (i.e., the radius of the orbit)

Example:

To calculate the orbital velocity of the International Space Station (ISS) around Earth:

* M (Earth) = 5.972 x 10^24 kg

* r (ISS orbit) = 6,771 km + 408 km = 7,179 km = 7.179 x 10^6 m

Plugging these values into the formula, we get:

v = √((6.674 x 10^-11 m^3 kg^-1 s^-2) * (5.972 x 10^24 kg) / (7.179 x 10^6 m)) ≈ 7,660 m/s

This means the ISS needs to travel at approximately 7,660 meters per second (around 17,100 mph) to maintain its orbit around Earth.

Factors affecting orbital velocity:

* Mass of the object being orbited: A larger object will have a stronger gravitational pull, requiring a higher orbital velocity.

* Distance from the object being orbited: The further an object is from the object it's orbiting, the lower the orbital velocity needed.

So, there's no single "value" for orbital velocity. It depends on the specific situation and the involved objects.