Dec 17 2007
Lockheed Martin-Built GPS Satellite Poised for Liftoff From Cape Canaveral Launch Pad
Cape Canaveral, Florida — Dec 17, `07 — The fifth in a series of eight modernized Global Positioning System Block IIR (GPS IIR-M) satellites built by Lockheed Martin for the US Air Force is ready for launch aboard a Delta II rocket on Dec 20, from Cape Canaveral Air Force Station, Florida.
The spacecraft, designated GPS IIR-18M, is a modernized version of the Block IIR series designed to enhance the GPS constellation for military and civilian GPS users around the globe. The modernized series delivers increased signal power to receivers on the ground, two new military signals for improved accuracy, enhanced encryption and anti-jamming capabilities for the military, and a second civil signal to provide users with an open access signal on a different frequency.
The GPS constellation provides critical situational awareness and precision weapon guidance for the military and supports a wide range of civil, scientific and commercial functions – from air traffic control to the Internet – with precision location and timing information.
The Global Positioning System enables properly equipped users to determine precise time and velocity and worldwide latitude, longitude and altitude to within a few meters. Air Force Space Command’s 2nd Space Operations Squadron (2SOPS), based at Schriever Air Force Base, Colo., manages and operates the GPS constellation for both civil and military users. More at Lockheed Martin.






