WASHINGTON, May 20 (UPI) -- The reliability of the U.S. global positioning system could be in jeopardy next year because of its aging satellites, a federal government report warns.
NEWTOWN, Pa., March 31 (UPI) -- Lockheed Martin announced that the development of its Global Positioning System spacecraft for the U.S. Air Force has successfully reached key milestones.
COLORADO SPRINGS, Jan. 9 (UPI) -- Braxton Technologies says testing suggests that the Global Positioning System Operational Control Segment is close to implementation for the U.S. Air Force.
CAPE CANAVERAL, Fla., Oct. 22 (UPI) -- A new Lockheed Martin GPS satellite for the U.S. Air Force was successfully launched last week.
CAPE CANAVERAL, Fla., Nov. 20 (UPI) -- The U.S. Air Force has launched a Delta II booster from Cape Canaveral, Fla. carrying a NAVSTAR Global Positioning System satellite.
CAPE CANAVERAL, Fla., Sept. 21 (UPI) -- The second satellite on a new constellation of U.S. Air Force GPS satellites is set for launch on Sunday.
WASHINGTON, July 18 (UPI) -- The fifth satellite in the U.S. Air Force's new GPS constellation has been completed and is being readied for launch in the fall.
CHICAGO, July 5 (UPI) -- The U.S. Air Force has awarded Boeing Co. a $138 million option to build three additional Global Positioning System satellites.
WASHINGTON, Feb. 1 (UPI) -- The Air Force's global-positioning system (GPS) is up to 15 percent more accurate thanks to an upgrade of software processing capabilities.
CAPE CANAVERAL, Fla., Nov. 6 (UPI) -- The U.S. Air Force launched a global positioning system satellite Saturday from Cape Canaveral, Fla.
