EROSS SC gives Europe the autonomous capability to service, sustain and extend the life of its assets in orbit – on its own terms. Nine years of EU research, one validated design, one mission to prove it in flight.
9+
Years of EU R&I heritage
TRL 6
GNC & robotics, validated 2025
4➜1
Predecessor projects, one mission
ISOS4I
Servicing component of the EU pilot mission
Building Europe's servicing edge
EROSS SC is the Servicing Component of ISOS4I, the EU Pilot Mission for In-Space Operations and Services. Its job is simple to state and hard to do: rendezvous with a satellite in orbit, capture it autonomously and service it – refuel, repair, upgrade or relocate. The message house below is how we say it to every audience.
Europe needs the ability to act in space independently. EROSS SC delivers that capability for the critical domain of in-orbit servicing.
- ISOS4I Pilot Mission mandate
- EU Space Act, June 2025
- EU sovereignty agenda
After nine years of R&I, EROSS SC is not a concept. It is a validated design progressing towards flight. The technology works.
- PDR validated, June 2025
- TRL 6 for GNC, April 2025
- CAESAR robotic arm demo, Dec 2025
Interoperable by design. Open interfaces invite partners and clients, not lock-in – the foundation of a European servicing market.
- SPACE USB standard & USI
- ORU-BOAS modularity
- AppStore execution platform
EROSS SC is the direct continuation of a chain of EU-funded projects that matured autonomous rendezvous and robotic servicing from early concept to near-flight readiness. Each validated step on this line is a funded, delivered project.
I3DS
Integrated sensor suite for autonomous rendezvous.
EROSS
Robotic servicing concept proven on the ground.
EROSS+
Mission design for a full in-orbit demonstration.
EROSS IOD
In-orbit demonstration phase. Preliminary design validated, June 2025.
EROSS SC
Detailed design to in-orbit demonstration, within the ISOS4I Pilot Mission.
CDR
Critical Design Review: the gateway to build, integration and flight.
Build to flight
Manufacturing, integration and the in-orbit demonstration. Dates to follow.
Every capability below translates directly into value for an operator: more revenue-generating years per satellite, faster routes to flight heritage and a credible answer to end-of-life obligations.
Refuelling and servicing that keep operational satellites working beyond their design life, protecting the revenue and utility of assets already in orbit.
A ride and a platform for payloads that need flight heritage. Demonstrate and validate new technologies in orbit without procuring a dedicated mission.
Move assets to new orbital slots or retire them responsibly at end of life, meeting debris mitigation obligations under the EU Space Act.
Modular payload exchange and software transfer in orbit. Satellites stop being fixed-configuration machines and start being maintainable infrastructure.
Open by design
- USI Universal Service Interface
- SPACE USB interface standard
- ORU-BOAS modular exchange units
- AppStore execution platform
Milestones are public and dated. This is what nine years of maturation looks like when it reaches the final stretch before flight.
TRL 6 achieved for Guidance, Navigation and Control
Autonomous rendezvous validated in representative conditions.
Preliminary Design Review validated
Mission and system design confirmed by the review authority.
CAESAR robotic arm demonstration
Robotic capture chain demonstrated end to end.
Critical Design Review
Detailed design frozen. The gateway to build and integration.
In-orbit demonstration
From demonstration to operation: Europe's in-orbit service provider.
EROSS SC is building a servicing ecosystem, not a closed system. Whether you allocate capital, operate satellites or shape European space policy, there is a defined way in.
In-space operations and services is an EC strategic priority with a pilot mission, a policy anchor and a pre-operational service roadmap. EROSS SC is the servicing capability at its core – de-risked by nine years of public R&I investment.
Life extension, relocation, deorbiting and payload hosting – delivered through open interfaces your platforms can adopt today. Early service partners help define the offering before it flies.
EROSS SC turns the ISOS agenda into hardware in orbit: a European capability to sustain European infrastructure, aligned with the EU Space Act and the ISOS4I governance framework.
Talk to the consortium about services, partnership and the road from demonstration to operation. Follow the mission on LinkedIn for milestone announcements.
