Satellite technology has progressed significantly over the last 50 years and now provides broadband communications, audio/video distribution, navigation, customer service, and military applications. Satellites play an important role in emerging 4G infrastructure and the vision of connectivity anywhere, anytime. Satellites orbit Earth and help with communication, mapping weather, TV, internet, and phone services. There are three main types of orbits - low Earth orbit (LEO), medium Earth orbit (MEO), and geostationary Earth orbit (GEO).