Fifth GPS 2RM Satellite Launched Aboard a Delta 2

摘要

The U.S. Air Force launched a modernized GPS satellite from Cape Canaveral Air Force Base, Fla., Dec. 20 aboard a United Launch Alliance Delta 2 rocket. The GPS 2RM spacecraft, the fifth in a series of eight modernized GPS satellites built by Lockheed Martin, is an upgraded version of Lockheed Martin's GPS 2R series of navigation and timing satellites. The GPS 2RM features increased signal power, two new military signals, improved encryption and resistance to enemy jamming attempts, and a second civilian signal, according to a Dec. 17 Lockheed Martin news release.