GPS Next Generation Operational Ground Control System

Overview
The Global Positioning System Next Generation Operational Ground Control System (GPS OCX) program is modernizing the ground control segment of the GPS system. It is being developed in three increments and will eventually allow the DOD to take full advantage of the capabilities offered by the various satellites.

The first increment is to deliver a capability to launch and initiate on-orbit testing of GPS III satellites; the next increment is to deliver a capability to command and control GPS II and GPS III satellites; and the final increment is to deliver a capability to make military and international signals operational.

Software challenges have delayed availability of the command and control capability, which was previously planned for 2015 and is currently expected to be operational in late 2016 (final block is planned for 2017).

Source

 * Global Positioning System: A Comprehensive Assessment of Potential Options and Related Costs is Needed, at 7.