Labels:text | screenshot | number | font OCR: SATELLITE ORBITS SPACE TECHNOLOGY science-fiction writer Arthur C. The Space Shuttle and the space Clarke in 1945, 12 years before the station Mir both travel in LEO, world's first satellite, Sputnik, was circling the Earth several times a launched. Geostationary orbit is so day. Mir orbits at between 300 and popular for such satellites that their 400 km (between 186 and 248 miles) positions and radio frequencies are above the Earth, circling the globe controlled by international approximately every 90 minutes, agreement. Satellites in this orbit or about 16 times a day. Seen from can be as close as 70 km (43 miles) Earth, a satellite in LEO moves apart, and must use different radio slowly across the sky. frequencies so as to avoid transmission interference. ECCENTRIC ORBITS Eccentric orbi ...
