The first Lockheed Martin-built, next-generation GPS III satellite. Photo: Lockheed Martin

A United Launch Alliance (ULA) Delta IV rocket is in final preparations to launch the second Global Positioning System III (GPS III) satellite, nicknamed Magellan, for the U.S. Air Force Space and Missile Systems Center. The launch is planned for Aug. 22 at Space Launch Complex-37 from Cape Canaveral Air Force Station.

The GPS III system, built by Lockheed Martin, aims to modernize the worldwide navigation network with a new generation of satellites offering improved accuracy, better anti-jam resiliency and a new signal for civil users. GPS III SV02 will be the 29th and final flight of the Delta IV Medium rocket and the 73rd GPS launch by a ULA or heritage vehicle.

“As we prepare to launch the final Delta IV Medium, we look forward to continuing its legacy through the purpose-built Vulcan Centaur,” said Gary Wentz, ULA vice president of Government and Commercial Programs. “We are proud to continue our strong support of the GPS program with this launch.”