EU SST at 10: Keeping watch over a crowded sky
A decade after its launch, on 1 July 2026, the European Union Space Surveillance and Tracking (EU SST) stands as a cornerstone of the EU’s efforts to protect satellites and orbital operations, while advancing the continent’s strategic autonomy in space. The anniversary also marks three years since the European Union Agency for the Space Programme (EUSPA) took over the EU SST Front Desk. Today, the system monitors and supports more than 690 satellites, and has over 400 organisations registered to the EU SST services.
‘Since taking on the role of the EU SST Front Desk in 2023, EUSPA has been working hand in hand with the EU SST Partnership to ensure that high-quality, reliable services are delivered efficiently through the SST Portal’, said EUSPA Executive Director Rodrigo da Costa. ‘As we mark 10 years of EU SST service provision, this integrated approach reflects the EU’s commitment to operational excellence, user engagement, and the continuous evolution of space surveillance and tracking capabilities.’
Operating from the agency’s Galileo Security Monitoring Centre in San Martín de la Vega, Madrid, the Front Desk serves as the operational interface between the EU SST Partnership and the user community. It coordinates alerts, monitors performance and provides user support.
As the number of satellites and other objects orbiting Earth continues to grow, so does the need for timely, reliable and actionable SST information, available around the clock.
The EU SST services themselves are generated by the operations centres of the participating EU Member States, while EUSPA delivers these services to users through the EU SST Service Provision Portal, which it manages as part of its Front Desk responsibilities.
Front Desk impact in numbers
The number of user requests handled by EUSPA since 1 July 2023 stands at 3 925, reflecting strong and sustained demand for support. Moreover, EUSPA currently monitors 105 performance indicators, providing a comprehensive overview of service quality and supporting the continuous improvement of EU SST operations.
Over the long-term, nearly 1 588 800 SST products have been delivered since 2019 to a diverse user base, which includes the 27 EU Member States, EU institutions, and spacecraft owners and operators. These services include safety alerts for collision avoidance, analysis of objects re-entering the atmosphere and assessment of in-orbit break-ups and collisions.
These results are anchored by EUSPA’s work on the ground. As the Front Desk, it ensures that operational products derived from sensors data provided by participating Member States and the industry are made available to satellite operators, helping them protect space assets.
Looking ahead
EU SST’s 10-year milestone is both a moment of reflection and a step forward for the EU’s space situational awareness ambitions. What began in 2016 as a partnership among five EU Member States has expanded into a network of 19 participating countries.
As space traffic intensifies and reliance on space data deepens, the role of the Front Desk is set to grow further. By working closely with the EU SST Partnership and the user community, EUSPA will remain at the centre of delivering operational services that support safe, secure and sustainable space activities, while contributing to the future evolution of the EU SST capabilities.
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