A United Launch Alliance (ULA) Atlas V rocket carrying the eighth Global Positioning System (GPS IIF-8) satellite for the U.S. Air Force launched from Space Launch Complex-41.This marks the 50th launch of an Atlas V rocket. GPS IIF-8 is the eighth 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.