EROSS SC (European Robotic Orbital Support Services – Servicing Component) demonstrates European solutions for servicer and serviced satellites in LEO and GEO, enabling a wide range of efficient and safe orbital support services.
EROSS SC is the Servicing Component of the ISOS4I Pilot Mission, the EU flagship initiative for In-Space Operations and Services (ISOS). It is the direct continuation of a nine-year chain of EU-funded projects – I3DS, EROSS, EROSS+ and EROSS IOD – that have matured autonomous rendezvous and robotic servicing from early concept to near-flight readiness.
The mission concept covers the complete orbital rendezvous of a Servicer satellite with a Client satellite, followed by capture and servicing operations: refuelling, ORU exchange, inspection, relocation and controlled deorbiting. On-orbit servicing represents a paradigm shift for space systems: satellites will no longer be abandoned to their fate once in orbit but can evolve over their lifetime.
The preliminary design was validated in June 2025 and the consortium concluded a light Critical Design Review in December 2025. EROSS SC now progresses through detailed design towards production, qualification and in-orbit demonstration.
Funded by the European Union under Horizon Europe
100% funded by the EU
From EROSS+ maturation to services and in-orbit assembly – see the roadmap below
Eleven partners across Europe bring together mission primes, robotics institutes, interface specialists and communication expertise.
