Federal News
SDA Advances Tranche 1 Satellite Launches
March 23, 2026
The Space Development Agency (SDA) is preparing to resume its Tranche 1 satellite launches in May or June 2026 following a strategic pause to address operational challenges including vendor checkouts and optical mesh network development. This tranche involves the launch and deployment of 42 communications satellites split evenly between York Space Systems and Lockheed Martin, supporting the Transport Layer constellation aimed at enhancing global warfighter connectivity. The pause also followed disruptions caused by a government shutdown during the previous launch phase. Ongoing collaboration between SDA, York Space Systems, and Lockheed Martin focuses on achieving operational capability and integrating advanced connectivity features such as Link 16 and multi-domain communications.
- Why this matters: Procurement professionals should note the continuation of a major satellite constellation deployment involving significant prime contractors York Space Systems and Lockheed Martin, signaling upcoming contract activities and operational testing phases.
- The strategic pause highlights the importance of vendor coordination and government shutdown impacts on launch schedules, which may affect contract timelines and risk management.
- Organizations involved in satellite communications and network integration can anticipate opportunities related to the Transport Layer and Golden Dome architecture developments.
- Agencies and contractors should prepare for operational testing handover and potential follow-on procurements as the constellation moves toward full operational capability.
York has been demonstrating Link 16 connectivity to assets in space. We also showed that you can connect two or more different domains 6space and air, or space and ocean, etcetera, and so that is promising for the capabilities that are going to be required as we move toward things like the Golden Dome architecture.
— Melanie Preisser
We have had a strategic pause for a couple of things. One was we launched the second plane [the 21 Lockheed Martin satellites] in the middle of a government shutdown so there was some disruption just to get a team to get that done.
— Gurpartap GP Sandhoo
The Lockheed Martin and York satellites are still going through the vendor-run launch and early orbit phase checkouts before control is handed over to the government to begin operational testing.
— Col. Alexander Rasmussen
Agencies
Space Development Agency, U.S. Northern Command
Vendors
York Space Systems, Lockheed Martin
Contracts
Locations
Sources
- Next SDA Tranche 1 Launches Likely In May Or June, Director Says - Defense Daily · Defense Daily · Mar 23