Space Development Agency pauses plans to provide PNT capabilities – DefenseScoop

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September 24, 2025

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Written by Editor

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What’s new: Space Development Agency seems to be backing off its plans for LEO PNT.

Why it’s important:

This could signal SDA and DOD de-emphasizing PNT overall. Note that Space Force’s R-GPS is not yet a program.
On the other hand, the “D” in SDA stands for “development.” This announcement could be a recognition by SDA that LEO PNT is already being done by others, including commercial interests. For example, RNT Foundation members Trustpoint and Xona are well on their ways to establishing constellations. So, perhaps there is no need for SDA to develop something also.

What else to know: LEO PNT is an increasingly popular pursuit. We have lost count of the number of government and commercial initiatives around the world. Just yesterday, for example, we saw an announcement by a company in India that they will establish a service.

Space Development Agency pauses plans to provide PNT capabilities

SDA was looking to build out PNT capabilities in the Tranche 3 transport layer of the Proliferated Warfighter Space Architecture, which the Department of the Air Force is considering canceling.

By Mikayla Easley September 22, 2025

NATIONAL HARBOR, Md. — The Space Development Agency is reconsidering whether or not it will further develop position, navigation and timing (PNT) capabilities as part of its mega-constellation of satellites in low-Earth orbit.

SDA was looking to build out additional PNT capacity in the Tranche 3 transport layer of the Proliferated Warfighter Space Architecture (PWSA) — which will comprise hundreds of satellites providing data relay and missile warning and tracking capabilities to warfighters. But because the agency did not include funding for the Tranche 3 transport layer in its budget request for fiscal 2026, its plans to flesh out PNT in future PWSA tranches are effectively on hold.

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