A United Launch Alliance (ULA) Delta IV rocket successfully launched the Global Positioning System (GPS) IIF-5 satellite for the U.S. Air Force on Feb. 20 at 8:59 p.m. EST from Space Launch Complex-37. GPS IIF-5 is the fifth in a series of next generation GPS satellites and will join a worldwide timing and navigation system utilizing 24 satellites in six different planes, with a minimum of four satellites per plane positioned in orbit approximately 11,000 miles above the Earth’s surface.