IN Brief:
- Rocket Lab has won a $90m US Space Force contract for two GEO satellites carrying Heimdall SDA payloads.
- The spacecraft will use the Lightning bus adapted for GEO thermal, radiation, propulsion, and station-keeping requirements.
- The award moves Rocket Lab Optical Systems’ electro-optical payload work from prototyping into operational satellite delivery.
Rocket Lab has received a $90m contract from the US Space Force’s Space Systems Command to design, manufacture, integrate, and operate two geostationary satellites carrying Heimdall space-domain-awareness payloads.
The award is Rocket Lab’s first satellite production programme for geostationary orbit and extends its vertically integrated space systems model into a more demanding orbital regime. The company will act as prime contractor and end-to-end mission provider, covering spacecraft design and manufacture, payload integration, launch integration with a government-furnished launch vehicle, and on-orbit operations for up to five years after commissioning.
The satellites will be built on Rocket Lab’s Lightning spacecraft bus, adapted for the thermal, radiation, propulsion, and station-keeping requirements of GEO. Heimdall payloads will be supplied by Rocket Lab Optical Systems, following Rocket Lab’s acquisition of GEOST in 2025. The earlier prototype phase developed Heimdall as compact electro-optical sensors intended to improve custody of objects in geosynchronous orbit.
Moving from hosted payload prototype to operational satellite production is an important step for the programme. Space-domain awareness is increasingly dependent on electro-optical sensing, embedded processing, stable spacecraft pointing, and resilient communications. GEO hosts critical communications, navigation, missile warning, and national security assets, making persistent observation of objects in that orbital belt a high-priority capability.
Electro-optical payloads in GEO face a demanding design environment. Sensors must operate with high stability across changing illumination, background conditions, and thermal loads, while spacecraft electronics have to withstand radiation and support precise pointing over long durations. Onboard processing and data handling are also becoming more valuable as operators seek to reduce latency and prioritise relevant observations before data moves through constrained communications links.
The contract also shows the growing overlap between defence electronics, optical payload design, and commercial space manufacturing. Rocket Lab’s model brings spacecraft production, optical payload capability, integration, and operations under one organisation. That can reduce interface friction between payload designers, bus engineers, manufacturing teams, and mission operators, while increasing the need for disciplined qualification across the full electronics stack.
Persistent optical sensing is developing across defence and security markets at several scales, from satellite payloads to terrestrial surveillance. Long-range vision systems such as SiLC’s FMCW lidar-based 4D vision platform show the same underlying movement toward richer sensor data, more onboard intelligence, and tighter integration between sensing and operational response.
For space electronics suppliers, SDA programmes create demand across image sensors, optical assemblies, radiation-tolerant components, embedded compute, power conditioning, thermal management, precision timing, and secure communications. The operating environment places strict requirements on reliability and calibration stability, while the mission profile demands accurate sensing over long periods with limited opportunities for physical intervention.
Rocket Lab will carry out spacecraft assembly, integration, and test at its Long Beach, California Spacecraft Production Complex, with mission operations handled through Rocket Lab facilities after launch. The award gives the company a route into a higher-value class of national security spacecraft and strengthens the role of electro-optical payload capability as a differentiator in defence space systems.
