Officials with the 2nd Space Operations Squadron at Schriever AFB, Colo., last week completed an upgrade of the Global Positioning System ground control element. The Architecture Evolution Plan 5.6 software upload is part of the Air Force’s broader efforts to improve and maintain the current GPS ground system. Col. Harold Martin, acting command lead for positioning, navigation, and timing in Air Force Space Command’s air, space, and cyberspace operations directorate, said the Jan. 5 refresh was “a small software update” to incorporate changes to support the upcoming launch of the second GPS Block IIF satellite. He added, “This release does not contain fixes involving any changes to the navigation message, and therefore should be transparent to the end user.” This work built upon the previous upgrade in December. (Peterson release)
The Air Force awarded a $13.08 billion contract to the Sierra Nevada Corporation on April 26 for its Survivable Airborne Operations Center aircraft, the successor to the service’s E-4B “Doomsday” plane. Like the E-4B, officially called the National Airborne Operations Center, the SAOC will be meant to withstand a nuclear attack and keep…