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its gravitationally bound to the earth,i.e it orbits earth.just like the moon. it orbits once every 90mins or so

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In a circle and unpowered

(At stable orbit) Gravity = Centripetal force

Essentially, for any given orbital radius, only one velocity will keep it in stable orbit.

1. Select orbit radius (r)

2. Calculate required velocity (v) from: v = square root (G * m) / r

(G = Newtons gravitational constant, m = earths mass)

3. Calculate (sidereal) orbit time from (2 * pi * r) / v

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13y ago

What else can I help you with?