Space Force Enlists Five Firms for Satellite Network Integration

“The primary objective of this effort is to validate integration methodologies and demonstrate that diverse commercial systems can seamlessly connect to and transport, data across the core SDN system,” the Space Systems Command (SSC) said in its announcement.

Space Systems Command awards five companies — $12 million apiece

The Space Force has awarded five companies contracts and Other Transaction Authority (OTA) agreements, each package worth $12 million, to test how commercial satellite networks will link into the emerging Space Data Network (SDN). SSC’s Space-Based Sensing and Targeting Portfolio Acquisition Executive office is managing the work, the release said.

The five winners named by SSC are Amazon LEO for Government, Lockheed Martin, Northrop Grumman, Rocket Lab and York Space Systems. With the exception of Amazon LEO, SSC noted, the other companies are already under contracts to develop the Space Development Agency’s low Earth orbit Transport Layer for data relay.

Two-step approach: demonstrate first, operationalize next

SSC described the awards as a deliberate, two-step program. Step one concentrates on “demonstrating both ground-to-space and space-to-space data transport” between contractor systems and on interoperability with the SDN backbone. Those demonstrations are being executed via fixed-price contracts with six-to-nine-month performance periods, each valued at $10 million.

Step two seeks to “operationalize these connections in orbit” through OTA agreements, each worth $2 million, intended to “seed the development and fielding of Space Exchange Point (SEP) satellites.” The combined award structure — a larger development contract followed by a smaller OTA to enable on-orbit work — is intended to move from lab and engineering demonstrations into prototype flight hardware.

Space Exchange Point satellites: orbital routers and the Enterprise Space Terminal link

SSC described SEP birds as “specialized spacecraft [that] act as orbital routers, allowing disparate networks and government satellite systems to connect directly” to the SDN backbone. The SEP initiative is positioned as a path to field prototype payloads from the multi-year, multi-vendor Enterprise Space Terminal (EST) program.

SSC added that the EST program “designed optical terminals utilizing a government-owned communications standard” that can be used across orbital regimes. Taken together, SEP satellites and EST-designed payloads are the mechanism SSC intends to use to translate laboratory interface standards into operational, on-orbit routing capability.

How the SDN backbone and Golden Dome are connected

SSC framed these experiments as part of the SDN, the Space Force’s emerging satellite “network-of-networks” meant to provide low-latency, high-speed connectivity between U.S. military sensors and shooters. The release noted the SDN is intended, among other missions, “to support the Pentagon’s ambitious Golden Dome missile defense initiative.”

Separately, SSC noted that in May the service awarded SpaceX a $2.9 billion contract to build the SDN “backbone,” formerly called MILNET, a low Earth orbit constellation intended to ferry data between other satellite types. The five awarded companies will test interconnectivity with that backbone through the two-step demonstration and SEP work outlined above.

What this means for Amazon LEO, Lockheed Martin, Northrop Grumman, Rocket Lab, and York Space Systems; technologists; and procurement teams

• Amazon LEO, Lockheed Martin, Northrop Grumman, Rocket Lab, and York Space Systems: each company has been placed into a program sequence that starts with six-to-nine-month fixed-price demonstrations and can move into $2 million OTAs to field SEP payloads—an explicit route from demonstration to on-orbit prototype work.
• Technologists and security teams: SSC’s focus on “rigorous physical, electrical, and data interface standards” and on-orbit testing of “high-speed optical communications routing” gives engineers concrete technical targets to validate — chiefly whether different commercial optical terminals and data interfaces can interoperate with the SDN backbone.
• Procurement leaders and program offices: SSC’s stated goal to “build a repeatable, secure baseline” and to avoid “costly, custom redesigns” signals an intent to reduce integration costs by establishing early, government-owned standards and a plug-and-play environment for future communication payloads.

The Space Force has turned a conceptual “network-of-networks” into a concrete set of technical experiments with named contractors, fixed-price demonstrations, and small OTAs to seed orbital routers. The next measurable milestones are the six-to-nine-month demonstration windows and the deployment of prototype SEP payloads under the $2 million OTAs — tangible steps that will test whether the government-owned communications standard and a mix of commercial offerings can deliver the plug-and-play connectivity SSC describes. If those tests succeed, SSC says, they will lower the barrier to entry for “proven and innovative commercial baselines.” If they fail, the program will face its own set of engineering and interoperability questions on orbit.

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