Component

Space Situational Awareness (SSA)

Europe’s eyes on space
Space Situational Awareness (SSA) provides knowledge about space hazards like collisions, fragmentations, re-entering objects, solar storms, and approaching space rocks. It ensures the safety of European economies, societies, and citizens who rely on space-based communication, navigation, and observation services.

In an era of increasing reliance on space-based services, space is essential for the strategic autonomy of the EU and its Member States. Economies, citizens, and public policies here on Earth increasingly depend on services and data in and from space. The Space Situational Awareness component of the EU Space Programme is instrumental for providing reliable information on the space environment and for helping to ensure the uninterrupted functioning of space-based services. 

Space Situational Awareness (SSA) is an essential component of the EU Space Programme. By providing comprehensive knowledge and understanding about space hazards, SSA plays a key role in ensuring the safety and security of the European economies, societies and citizens who rely on space-based services for communication, navigation and observation applications. 

The Space Situational Awareness (SSA) video provides a compelling overview of the SSA component of the EU Space Programme. It delves into the subcomponents of SSA: EU Space Surveillance and Tracking (EU SST), Space Weather Events (SWE), and Near-Earth Objects (NEO). The video showcases the importance of SSA in ensuring the safety, sustainability, and effective operation of activities in outer space and the safety and security of the European economies, societies and citizens who rely on space-based services for communication, navigation and observation applications.

Space Situational Awareness subcomponents

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Near-Earth Objects (NEO)
Near-Earth Objects (NEO)

Space rocks such as comets and asteroids approach the Earth and enter the Earth’s atmosphere regularly. The EU supports activities that help to study and track those space rocks to better understand possible risks.

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Space Weather Events (SWE)
Space Weather Events (SWE)

Geomagnetic storms and solar flares can harm satellite electronics in space and impact electricity grids on Earth. Understanding the effects of space weather is key to mitigate the risks associated with them.

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Space Surveillance and Tracking (SST)
Space Surveillance and Tracking (SST)

The SST subcomponent protects satellites from collisions in space, monitors their re-entries into Earth’s atmosphere, and assesses in-orbit fragmentations

Space isn't empty—it's a crowded area with over 10,000 satellites, 120 million debris pieces, and invisible storms. The EU's Space Situational Awareness component of the EU Space Programme helps to keep our assets in space and on Earth safe so we can continue to use space-based services such as navigation, communication and Earth observation that we rely on every day.
Factsheet
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Space safety | Space Situational Awareness

Space Situational Awareness (SSA) provides accurate information on the space environment, ensuring uninterrupted space services for EU citizens. Essential for strategic autonomy, SSA takes a holistic approach to monitor main space hazards: collisions, fragmentation, re-entry, space weather, and near-Earth objects.