[Satellite TODAY 04-25-11] Boeing delivered the GPS 2F SV-2 satellite to the U.S. Air Force Space Command’s Cape Canaveral Station, the Air Force announced April 22.
    SV-2 will be the second GPS 2F space vehicle in operation after it is launched aboard a United Launch Alliance Delta 4 rocket later this summer. The planned 12-satellite GPS 2F constellation aims to provide enhanced military signals that are more resistant to jamming and provide greater accuracy through advanced atomic clock technology. The constellation also will provide a new third civil signal for safety-of-life applications and a longer design life of 12 years.
    "The GPS constellation is the strongest it’s ever been with 31 satellites currently on-orbit. The addition of the first 2F SV and the on-track production of the GPS 3A SVs demonstrate the Air Force’s commitment to maintaining GPS as the gold standard for positioning, navigation and timing information," the Air Force said in a statement.

Correction – The last sentence in an earlier version of this story should have read: Lockheed Martin is currently building the GPS 3A satellites.