CLASSIFIED
PRAETORIAN SDA_605
US Military Mesh Communications (PWSA Transport Layer) · York Space Systems / US Space Development Agency
Right now
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PRAETORIAN SDA-604, 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 a network designed so that no single satellite loss meaningfully degrades overall coverage.
Its orbit
- Orbit
- Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
- Altitude
- 591–598 mi (952–962 km)
- Inclination
- 81.3°
- One orbit
- 104.1 minutes13.8 orbits a day
- NORAD ID
- 65568
- Int’l designator
- 2025-203D
- Launched
- 2025
Orbital elements from CelesTrak, as of 22 Sep 2026.
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