Airmen with the 2nd Space Operations Squadron at Schriever AFB, Colo., completed the repositioning of three Global Positioning System satellites on orbit, Jan. 18, 2011. This concluded the first part of a project known as "Expandable 24." Under it, the Air Force is adding three GPS spacecraft already on orbit to the set of 24 active GPS satellites and then spreading out the satellites in order to provide better worldwide GPS signal coverage to the US military, especially over areas like the mountainous terrain of Afghanistan. Civil GPS users also will benefit. Air Force space officials expect to complete the project in June 2011. Here, an artist's rendition of a next-generation GPS Block III satellite.
Lockheed Martin illustration
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