The U.S. Air Force Space Command operates 10 Phase III DSCS satellites providing defense officials and battlefield commanders secure voice and high rate data communications. The DSCS III system also transmits space operations and early warning data to various systems and users.
Geostationary Transfer OrbitUSA-166, also known as GPS IIR-8 and GPS SVN-56, is an American navigation satellite which forms part of the Global Positioning System. It was the eighth Block IIR GPS satellite to be launched, out of thirteen in the original configuration, and twenty one overall.
Medium Earth OrbitSTS-107 was the 113th flight of the Space Shuttle program, and the disastrous final flight of Space Shuttle Columbia. The mission launched from Kennedy Space Center in Florida on January 16, 2003, and during its 15 days, 22 hours, 20 minutes, 32 seconds in orbit conducted a multitude of international scientific experiments.
Low Earth OrbitThe Coriolis / Windsat / SMEI three-year mission will provide Defense Department and National Oceanic and Atmospheric Administration (NOAA) weather data users with important ocean wind and solar wind measurements -- improving forecasting around the globe while building important knowledge that will be used in developing the next generation of Polar-orbiting environmental satellites.
Sun-Synchronous OrbitFourth and final test flight of the Shenzhou spacecraft, without crew on board. The spacecraft was flown in the same configuration as a crew-carrying mission, and as such two dummy astronauts were carried on board, as are sleeping bags, food and medication. The control systems were fitted with ability for manual control and emergency landing. The windows were constructed of a new material that was designed to stay clear even after reentry to allow an astronaut to confirm that the parachutes have deployed properly. The spacecraft carried 100 peony seeds to investigate the effect of weightlessness on plants grown from them. The 52 experiments onboard investigated areas in physics, biology, medicine, earth observation, material science, and astronomy.
Low Earth Orbit