The seventh Global Positioning System Block IIR (GPS IIR-7/SVN-54) satellite, designed and built by Lockheed Martin, has reached 10 years of successful on-orbit operations, and continues to deliver critical position, navigation and timing (PNT) signals to nearly one billion GPS users worldwide. A Lockheed Martin-led team is building the U.S. Air Force's next generation GPS spacecraft, known as GPS III. GPS III will improve position, navigation and timing services and provide advanced anti-jam capabilities yielding superior system security, accuracy and reliability.  The first increment, in a planned three increments, GPS IIIA will deliver signals three times more accurate than current GPS spacecraft and provide three times more power for military users, while also enhancing the spacecraft's design life and adding a new civil signal designed to be interoperable with international global navigation satellite systems. Read More