Boeing GPS Operational Control Segment Enters Service With US Air Force
By Shane Nolan
April 26, 2011 - Boeing announced that its GPS
Operational Control Segment (OCS) has gained full
operational status with the U.S. Air Force 50th Space
Wing, Schriever Air Force Base, Colo. OCS keeps the GPS
system operational within specified accuracy to provide
secure and precise navigation around the world for
military, humanitarian and commercial applications.
"The official acceptance of the Boeing-built OCS marks
the first time in more than 20 years that a GPS control
system has been deployed for use by the Air Force," said
Craig Cooning, vice president and general manager of
Boeing Space & Intelligence Systems.
"Since beginning to support the GPS fleet in 2007, OCS
has been a high-performing ground control infrastructure
that has supported an expanding set of GPS services and
capabilities. This upgraded system has consistently
provided vital service to the Air Force through enhanced
performance of the current on-orbit GPS fleet and the
successful launch and operation of new GPS IIF
The Boeing-led team, consisting of Lockheed Martin, Braxton
Technologies and A.I. Solutions, supported the Air Force in
completing a comprehensive series of operational tests and
evaluations that began in 2007, when the Air Force transitioned
satellite operations from the previous system to OCS.
The OCS system designed to improve operations and provide new
capability to GPS users uses its distributed, open software and
hardware architectures to increase operator efficiency, and the
accuracy of positioning, navigation and timing. Reducing
operator workload enables greater emphasis on the effective
support of GPS-enabled military operations. In addition, the
flexible design of the OCS system provides a foundation for new
capabilities by accommodating technology improvements and new
missions as required.
The Boeing team has provided ground operations support to the GPS fleet for more than 30 years. In 2010, Boeing delivered a new GPS security capability designed to protect GPS receivers against fake satellite signals sent by adversaries. In 2007, Boeing successfully assisted the Air Force in seamlessly deploying two major ground control segment elements: the Launch and Early Orbit, Anomaly Resolution and Disposal Operations (LADO) and the Architecture Evolution Plan (AEP) Operational Control Segment (OCS).
Boeing is currently under contract to build 12 GPS Block IIF satellites. GPS IIF is the product of Boeing's experience with 40 successful satellites from the GPS Block I, Block II/IIA and GPS IIF missions and more than 30 years of teamwork with the Air Force. Boeing has served as a prime contractor for GPS satellites for more than three decades, and GPS IIF will form the core of the GPS constellation for many years to come.
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