The coverage angle (a) of a satellite is an angle that defines the area on the Earth's surface that the satellite can "see" or cover at any given time. It helps in planning satellite constellations, optimizing communication, and ensuring efficient coverage for services like broadcasting, navigation, and the Internet. Coverage Area is the area on Earth where a satellite can be seen at a minimum elevation angle. This coverage area is circular and determined by the satellite's orbital parameters such as Semi-Major Axis (a), Eccentricity (e), Inclination (I), etc. Satellite coverage can be influenced by factors such as atmospheric attenuation, obstacles blocking transmission, and electrical background noise from Earth.