The U.S. Space Development Agency (SDA) is a U.S. Space Force direct-reporting unit focused on the rapid deployment of space-based capabilities to the joint warfighter. It aims to achieve this through the development, fielding, and operation of the Proliferated Warfighter Space Architecture, a threat-driven constellation of small satellites in low Earth orbit. SDA's key focus areas include military data and communications connectivity, missile tracking, and development of a resilient space architecture, working with partners like Lockheed Martin, SpaceX, and York Space Systems. Their work supports terrestrial missions and enhances warfighter lethality, maneuverability, and survivability.
All verified mentions of this organization in source documents.
The Space Development Agency is building a mesh network of satellites in low Earth orbit to serve as a data transport layer for the U.S. military.
The Space Development Agency is using optical systems because they provide much higher transmission data rates than traditional radio-frequency links and are harder to intercept.
Satellites built by U.S. primes for the Semper Citius Space Development Agency constellation will be equipped with Tesat Scalable Optical Terminals (SCOT80).
The Space Development Agency is procuring satellites from multiple manufacturers and requires all procured satellites to be interoperable.
CesiumAstro will continue developing a Link 16–compatible AESA ahead of the Space Development Agency’s migration to the Proliferated Warfighter Space Architecture global satellite network.
Innoflight has been selected by Northrop Grumman Corporation as a strategic avionics supplier for the Space Development Agency Tranche 1 Transport Layer program.
The Space Development Agency’s Transport Layer is intended to provide assured, resilient, low-latency military data and connectivity worldwide to warfighter platforms.
Raytheon Technologies (NYSE: RTX) received an award valued at more than $250,000,000 to design, develop, and deliver a seven-vehicle missile tracking satellite constellation for the Space Development Agency.
Terran Orbital delivered ten spacecraft to Lockheed Martin in support of the Space Development Agency Transport Layer foundational Tranche 0.
Terran Orbital is developing 42 satellites for the Space Development Agency Transport Layer Tranche 1.
The Space Development Agency awarded three prototype agreements worth approximately $1,800,000,000 to establish the foundation for the Tranche 1 Transport Layer.
CesiumAstro was awarded a contract through the Department of Defense’s Space Development Agency to advance the company’s multi-beam L-band active electronically scanned array antenna.
CesiumAstro will continue developing a Link 16–compatible L-band AESA ahead of the Space Development Agency’s migration to the Proliferated Warfighter Space Architecture global satellite network.
CesiumAstro was awarded a contract through the Department of Defense’s Space Development Agency to advance the company’s multi-beam L-band active electronically scanned array antenna.
The Space Development Agency originally planned 28 satellites in Tranche 1 but added seven more after Congress increased the agency’s 2023 budget by $250,000,000 specifically to pay for missile-tracking satellites.
The Space Development Agency awarded Raytheon Technologies a $250,000,000 contract to build seven missile-tracking satellites for the agency’s low Earth orbit constellation on 2023-03-02.
Congress added $500,000,000 to the Space Development Agency’s budget for the Tracking Layer, and the agency moved up the first launch of Tranche 1 from 2026 to 2025.
The seven Raytheon-built satellites will be part of the Space Development Agency’s Tracking Layer Tranche 1 infrared-sensing constellation.
The Space Development Agency’s Transport Layer is intended to provide assured, resilient, low-latency military data and connectivity worldwide to the full range of warfighter platforms.
Terran Orbital is developing 42 satellites for the Space Development Agency Transport Layer Tranche 1.