ROCKET SCIENCE explained in 15 minutes! And How do satellites work?

By Arvin Ash

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Go to http://www.squarespace.com/arvinash to get a free SquareSpace trial, and 10% off your first purchase of a website or domain. Rocket Science and orbital mechanics of Satellites. There are about 3000 operational satellites, owned by over 100 different countries orbiting the earth right now. About 550 of these are in geo stationary orbits - the satellite appears stationary compared to the rotation of the earth. Communications satellites are typically in such orbits. These allow you to leave your satellite dish in one position, and never have to change it. Orbital mechanics is rooted in Keppler’s laws of planetary motion & Newton’s laws of universal gravitation. These laws allow us to calculate the period and speed of such a satellite. Speed = S = sq root(mu/r) mu= standard gravitational parameter Period = T = 2pi*sq root(r^3/mu) r = radius of orbit = altitude + radius of earth mu = Newton’s universal gravitational constant x mass of planet A geostationary orbit is 35,786 km f

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