Technology and Science20 April, 20266 min read
Space Force Cancels OCX GPS Ground Control System After 16-Year Pentagon Program
This article is an automated aggregation of coverage from news outlets. Our editorials offer in-depth analysis curated by the NewsCord team.
OCX canceled after years of delays and insurmountable problems. Space Force terminated the GPS ground system after failing to deliver capabilities.
OCX Cancelled
The Pentagon has canceled the Global Positioning System Next-Generation Operational Control System, known as OCX, ending a 16-year, multibillion-dollar effort to build a command-and-control system for the U.S. military’s GPS satellite navigation network.
The U.S. Space Force announced that the program was officially canceled by Michael Duffey, the Pentagon’s defense acquisition executive, on Friday, April 17.
Ars Technica reported that the decision terminates the OCX program after further tests showed it was still not ready for GPS operations, even after RTX delivered the control system to the Space Force last year.
The Space Force said the program’s enduring problems “proved insurmountable,” according to the press release described by Ars Technica.
The cancellation also ends a plan for OCX to replace the aging Architecture Evolution Plan (AEP) ground system and a separate system handling launch, anomaly response and satellite disposal, as described by Space Daily and SpaceNews.
Aviation Week reported that the Space Force on April 20 announced it was canceling the long-delayed GPS ground control system, after lengthy speculation on its future.
Across the coverage, the same core rationale appears: officials concluded OCX could not deliver needed capabilities on an “operationally relevant timeline at an acceptable level of risk,” as quoted by Breaking Defense and attributed to a Space Force press release.
Timeline and Costs
The OCX program began with a contract award in 2010 and was originally framed around a 2016 completion target, but it stretched far beyond that schedule, according to Ars Technica. Ars Technica said the Pentagon awarded the OCX contract to Raytheon, now known as RTX Corporation, in 2010, with a timetable for completion in 2016 at a cost of $3.7 billion. It also reported that budget projections to finish the program grew to nearly $8 billion, and that the schedule for OCX extended out a decade longer than anticipated.
Breaking Defense described OCX as “originally anticipated to be ready in 2016,” and it said the Space Force formally accepted OCX from contractor RTX last year. Aviation Week added that the Space Force in July 2025 accepted OCX from Raytheon to begin integrated systems testing, and it said that as of January 2026 the cost was estimated to be $6.27 billion.
SpaceNews similarly stated that OCX accumulated costs of about $6.27 billion as of January 2026, including government testing and program support expenses. Ars Technica reported that RTX finally delivered the control system to the Space Force last year, but further tests revealed it was still not ready for GPS operations.
Why It Failed
Multiple reports attribute OCX’s collapse to problems discovered during integrated testing with the broader GPS enterprise, with officials saying those issues would put current GPS military and civilian capabilities at risk.
Ars Technica quoted Col. Stephen Hobbs, commander of the Space Force’s Mission Delta 31, saying, “We discovered problems” and that “Regrettably, extensive system issues arose during the integrated testing of OCX with the broader GPS enterprise.”
Hobbs added that “Despite repeated collaborative approaches by the entire government and contractor team, the challenges of onboarding the system in an operationally relevant timeline proved insurmountable,” and he said the program would “put current GPS military and civilian capabilities at risk.”
Breaking Defense echoed the same Hobbs language, stating that “Regrettably, extensive system issues arose during the integrated testing of OCX with the broader GPS enterprise,” and that “We discovered problems across a broad range of capability areas that would put current GPS military and civilian capabilities at risk.”
SpaceNews likewise quoted Hobbs describing “a range of technical issues” that proved difficult to resolve after integrated testing began with satellites, ground systems and user equipment.
Space Daily described the program as a “Next Generation Operational Control System” intended to run the military’s GPS constellation, and it said the execution was “not clean,” with extensive system issues arising during integrated testing.
Aviation Week tied the failure to the Space Force’s acceptance and testing timeline, stating that the service accepted OCX in July 2025 and that system issues arose during testing as costs grew.
Acquisition Reform and RTX Response
Alongside the technical rationale, the Space Force’s cancellation announcement emphasized a shift in acquisition approach toward “rapid, incremental capability delivery” rather than complex “all or nothing” system deliveries.
Breaking Defense quoted Tom Ainsworth, the Space Force’s acting service acquisition executive, saying, “It’s important we refine and update acquisition processes to prioritize rapid, incremental capability delivery versus complex ‘all or nothing’ system deliveries,” and it added that “The Department of War has made clear that we need to deliver warfighting capability at a faster rate.”
Aviation Week similarly quoted Ainsworth, saying the same “rapid, incremental capability delivery” line and that “The Department of [Defense] has made clear that we need to deliver warfighting capability at a faster rate.”
SpaceNews also carried the same Ainsworth language, stating “It’s important we refine and update acquisition processes to prioritize rapid, incremental capability delivery versus complex ‘all or nothing’ system deliveries,” and it quoted him again saying “The Department of War has made clear that we need to deliver warfighting capability at a faster rate.”
In parallel, RTX framed its own role in a way that acknowledged the decision while emphasizing delivery and ongoing support.
Ars Technica quoted an RTX spokesperson saying, “RTX is aware of the US Government decision regarding the GPS OCX program,” and it added, “Raytheon delivered the system in 2025 and has continued to support the US Space Force in post-delivery activities.”
Breaking Defense included the same RTX spokesperson statement, saying the company “is aware of the U.S. Government decision regarding the GPS OCX program” and that “Raytheon delivered the system in 2025 and has continued to support the U.S. Space Force in post-delivery activities.”
What Comes Next
With OCX canceled, the Space Force said it will continue enhancing the existing GPS control system, the Architecture Evolution Plan, to operate the GPS satellite constellation. SpaceNews stated that the Space Force recently awarded Lockheed Martin a $105 million contract to continue upgrading the existing Architecture Evolution Plan system, which has been incrementally improved over the past decade to compensate for OCX delays. SpaceNews also quoted Hobbs saying, “Ultimately, we analyzed the work remaining on OCX and compared this with the current GPS control system capability,” and it included his conclusion that “The analysis revealed additional investment in OCX was no longer the best solution.”
Breaking Defense added that the Space Force planned to request roughly $332 million for the project in the fiscal 2027 budget, citing Defense Department documents released earlier this month, even as it canceled the OCX contract. Breaking Defense also reported that the Space Force over the years opted to upgrade the current GPS ground system called AEP amid delays for OCX, and it said the Space Force recently awarded Lockheed Martin a $105 million contract for related work to control current GPS satellites and a forthcoming batch dubbed GPS IIIF.
Space Daily described how the Space Force kept patching AEP over the past decade, with incremental upgrades letting AEP support newer GPS III satellites and absorb functions originally assigned to OCX. Aviation Week added that with the cancellation of OCX, these upgrades will continue, and it quoted Hobbs saying the analysis revealed additional investment in OCX was no longer the best solution for protecting and advancing GPS capabilities.