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CLASSIFIED

PRAETORIAN SDA_614

US Military Mesh Communications (PWSA Transport Layer) · York Space Systems / US Space Development Agency

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PRAETORIAN SDA-613, one of York Space Systems' Tranche 1 Transport Layer satellites for the US Space Development Agency's Proliferated Warfighter Space Architecture — the Pentagon's answer to a fundamental problem: how do you build military space infrastructure that isn't an easy, high-value target? Rather than a handful of expensive satellites, the SDA is deploying over 150 nearly identical, mass-produced Transport Layer spacecraft in low Earth orbit, connected via optical laser inter-satellite links into a resilient global mesh network. This satellite contributes the SDA's answer to a persistent Pentagon question: how do you build space infrastructure that survives a war rather than becoming an easy first target.

Its orbit

Orbit
Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
Altitude
588–594 mi (947–956 km)
Inclination
81.3°
One orbit
103.9 minutes13.9 orbits a day
NORAD ID
65577
Int’l designator
2025-203N
Launched
2025

Orbital elements from CelesTrak, as of 22 Sep 2026.

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