SpaceX has secured $739 million in contracts from the US Space Systems Command to launch missile warning and tracking satellites for the Space Development Agency and the National Reconnaissance Office. The missions will place new satellite constellations into low-Earth orbit to improve the United States’ ability to detect, track, and respond to emerging missile threats from space.
The launches are being conducted under the Pentagon’s National Security Space Launch framework, which emphasizes the use of commercial rockets to reduce costs and accelerate deployment timelines. The contract includes three mission groups supporting both SDA’s proliferated space architecture and classified NRO operations.
Under the first mission set, known as SDA-2, SpaceX will conduct two launches carrying 18 Tracking Layer satellites manufactured by L3Harris. An additional SDA-2 launch will deploy eight Fire-control On Orbit-support-to-the-war Fighter (F2) spacecraft built by Millennium Space Systems. These F2 satellites are part of an experimental effort to improve missile defense performance against fast, maneuvering targets.
A second mission package, SDA-3, calls for two launches that will deliver 18 Tracking Layer satellites developed by Lockheed Martin. Together, the SDA-2 and SDA-3 satellites will enhance global missile tracking coverage and support joint warfighting operations across multiple combatant commands.
The third mission, designated NTO-5, supports a classified National Reconnaissance Office payload, with launch details scheduled for early 2027 and mid-2028. SDA-2 missions are expected to begin in late 2026, followed by SDA-3 launches in mid-2027.
The SpaceX contracts reflect a broader US push to strengthen space-based defense and communications capabilities. Recent initiatives include blockchain-based security upgrades for military satellite networks and preparations to deploy ground-based systems capable of disrupting Chinese and Russian reconnaissance satellites, signaling Washington’s expanding focus on space control and resilience.
