1. The problem statement, all variables and given/known data A satellite is in a circular orbit around the earth. The period of the satellite is 22.0 hr. Calculate the radius of the orbit of the satellite. Data: Mass of the earth = 5.98·1024 kg. 2. Relevant equations I thought I could use... T^2 = (4pi^2/GM) * r^3 but I am not getting the right answer, can someone give me a start on this?