PRACTICE ANOT The first artificial satellite to orbit Earth was Sputnik I (launched by the former Soviet Union in 1957). Its highest point above Earth's surface was 939 kilometers, and its lowest point was 215 kilometers (see figure). The center of Earth was at one focus of the elliptical orbit. Focus 215 km 939 km @ Find the eccentricity of the orbit. (Assume the radius of Earth is 6378 kilometers. Round your answer to three decimal places.)