DA-Group contributes to the EPS-Sterna programme by delivering radio frequency solutions for satellite microwave radiometers. The programme builds a scalable multi-satellite system based on a New Space approach, providing continuous and high-quality weather and environmental observation data globally.
DA-Group has signed an agreement with Sweden-based AAC Omnisys as part of EUMETSAT EPS-Sterna satellite programme. The programme represents Europe’s next-generation operational weather satellite system and reflects a New Space approach, building on technology validated in the European Space Agency’s Arctic Weather Satellite (AWS) mission.
EPS-Sterna expands the AWS concept from a single demonstrator into a scalable multi-satellite constellation designed to deliver continuous, high-quality microwave observation data globally.
Sterna-satellite. Image credit ESA/Mlabspace
Image: ESA/Mlabspace
DA-Group’s role: enabling RF performance in radiometer systems
DA-Group contributes to the programme by delivering radio frequency solutions in collaboration with its Creowave Filters unit. The supplied components form part of the satellites’ microwave radiometer systems, developed by AAC Omnisys, where signal integrity directly defines measurement accuracy.
“When measurement accuracy and data reliability are critical, RF performance must be delivered without compromise. This is the expertise we bring to the EPS-Sterna programme,” says Timo Lättilä, Chief Business Officer at DA-Group.
The solutions are designed to meet key system requirements, including:
- precise and interference-resilient signal processing
- high electromagnetic cleanliness
- long-term reliability in demanding space environments
“Performance in these systems is not only about meeting specifications, but about maintaining it over time. Our solutions are built to operate reliably throughout the system lifecycle,” Lättilä continues. DA-Group’s internal collaboration enabled the integration of Creowave Filters’ RF solutions into the overall system delivery.
New Space architecture enables scalability and speed
EPS-Sterna builds on the AWS satellite, launched in 2024, which successfully demonstrated a new generation of compact satellite platforms and microwave radiometer technology.
The programme brings this concept into operational deployment through a New Space approach, combining smaller satellites, faster development cycles and scalable system architecture.
The EUMETSAT Council approved the full funding of the programme in January 2026, with ESA responsible for procurement. The programme includes the space segment, ground infrastructure and launch services over an operational period of approximately 13 years.
OHB Sweden serves as the prime contractor, with AAC Omnisys (part of AAC Clyde Space) supplying the microwave radiometers.
Towards continuous and reliable Earth observation
The EPS-Sterna constellation will be deployed in phases, providing long-term value for weather forecasting, environmental monitoring and other critical applications.
DA-Group continues close collaboration with programme partners to ensure successful deliveries and the required system performance.
