SEAMIC_Functions: Elliptical Speed

In this video we explore elliptical orbits, including their definition and characteristics, such as major semi-axis, periapsis, and apoapsis. We also discuss how to calculate the orbital speed of an object in an elliptical orbit using a simple formula. The video provides examples of highly elliptical orbits, including the Molniya orbit, which remains above the equator for a long time and passes close to the earth at high speeds. We analyze the visibility from the earth's surface of these types of orbits and compare them to geosynchronous orbits. Finally, we exercise calculating the speed of a Molniya orbit at its perigee and apogee using the provided formula and given values for the standard gravitational parameter of the earth and the altitude of the closest point to the earth.