The U.S. Space Force has cancelled the GPS Next Generation Operational Control System program after integrated systems testing revealed pervasive technical failures that the government and Raytheon were unable to resolve on an operationally relevant timeline.
The Defense Acquisition Executive terminated OCX on April 17 on the recommendation of the acting service acquisition executive.
OCX was designed to replace two legacy GPS ground control systems — the Architecture Evolution Plan, which currently commands the GPS satellite constellation, and the Launch, Anomaly and Disposal Operations system. At cancellation, total program cost stood at approximately $6.27 billion, encompassing Raytheon funding and government testing and support costs.
The Space Force contractually accepted OCX from Raytheon in July 2025 following multi-year factory testing, then began integrated systems testing against the broader GPS enterprise of ground systems, satellites and user equipment. That testing exposed problems across a broad range of capability areas that program officials concluded would put current GPS military and civilian capabilities at risk if the system were transitioned to operations.
“Extensive system issues arose during the integrated testing of OCX with the broader GPS enterprise,” said Mission Delta 31 Commander Col. Stephen Hobbs. “Despite repeated collaborative approaches by the entire government and contractor team, the challenges of onboarding the system in an operationally relevant timeline proved insurmountable.”
Rather than continue investment in OCX, the Space Force will pursue further incremental upgrades to AEP, which has received sustained improvement over the past decade. Program officials said that track record provides confidence that the existing control system can continue to support the GPS constellation and deliver new capabilities.
Acting Service Acquisition Executive Tom Ainsworth framed the cancellation as an acquisition reform lesson, calling for rapid, incremental capability delivery over complex all-or-nothing system development — language consistent with broader Pentagon pressure to accelerate fielding timelines across major defense programs.
The termination leaves GPS modernization dependent on a ground control architecture that predates the Block III satellite generation it was originally designed to operate. The implications for M-code expansion, anti-jam capability delivery and next-generation timing services — all of which OCX was intended to enable — will be a central question for the program’s successor effort.
