(b) A satellite is launched into an equatorial orbit such that it orbits the Earth exactly 8 times per day. If the orbit

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B A Satellite Is Launched Into An Equatorial Orbit Such That It Orbits The Earth Exactly 8 Times Per Day If The Orbit 1 (63.56 KiB) Viewed 55 times

(b) A satellite is launched into an equatorial orbit such that it orbits the Earth exactly 8 times per day. If the orbit perigee height is 800 km, what is the value of apogee height? [Assume the radius of the earth is 6378 km, u = 398602 km3/s2] (c) List four of the main perturbing forces that may act on a satellite in Earth Orbit. Describe how two of these forces have the most significant impact on the orbit of a low altitude satellite (less than 500 km)? (d) Calculate the drag force on a space-station with a drag surface area of 1500 m2 in an unpowered orbit with an altitude of 400 km. Assume the atmospheric density is constant at 5 * 10-13 kg m-3, and the space station has a velocity of 7 km/s. Assume an appropriate value for the drag coefficient