EU-ESA Workshop on Near-Earth Objects: DG DEFIS and ESA Discuss Astrometric and Radar Observations with NEO Experts

Enhancing Near-Earth Object Monitoring: Insights from the 2025 Workshop

On October 6-8, 2025, the Directorate-General for Defence Industry and Space (DG DEFIS) in collaboration with the European Space Agency (ESA), convened their annual workshop focusing on Near-Earth Objects (NEOs). This three-day event attracted over 100 experts and stakeholders dedicated to advancing the reliability and quality of astrometric and radar observations of potential Earth-impacting celestial bodies.

Workshop Overview

The workshop comprised six comprehensive sessions, covering critical areas in NEO surveillance:

  • Orbit Determination and Uncertainty Propagation: Techniques to accurately trace and predict the paths of NEOs.
  • Astrometric Observation and Timing Precision: Enhancing observational methodologies to refine timing accuracy.
  • Radar Observations: Integrating radar data into astrometric frameworks for better analysis.
  • Synthetic Tracking and AI Techniques: Exploring innovative approaches for tracking NEOs using artificial intelligence.
  • Non-Traditional Astrometry: Utilization of diverse methods such as occultation measurements and data from the Gaia mission and various space-based instruments.
  • Future Radar Infrastructure: Discussing the potential development of advanced radar facilities.

Through collaborative discussions, participants generated actionable recommendations to bolster the integrity of observational data. These guidelines are essential for ensuring the availability of high-quality astrometric and radar information, which is imperative for accurate impact risk assessments in the future.

Contextual Framework

NEOs and Space Situational Awareness

The NEO initiative is a pivotal element of the Space Situational Awareness (SSA) segment within the European Union (EU) Space Programme. Its primary objective is to synchronize and enhance the capabilities of EU Member States in monitoring asteroids and comets whose trajectories intersect or approach Earth’s orbit.

EU Support for NEO Activities

The EU actively endorses a variety of efforts aimed at:

  • Capability Assessment: Mapping existing detection and monitoring frameworks among Member States.
  • Networking Promotion: Facilitating collaboration among research institutions and facilities through an annual conference.
  • Catalog Development: Establishing a European repository cataloging the physical properties of NEOs.
  • Rapid Response Services: Creating mechanisms for the swift characterization of newly identified NEOs.

Collaborative Framework

This workshop represents a critical deliverable from ESA, stemming from its Contribution Agreement with DG DEFIS, dedicated to furthering the NEO subcomponent of the EU Space Programme.

Closing Remarks

The discussions and outcomes from this workshop mark a significant step toward enhancing Europe’s readiness in NEO observation and risk assessment. Continuous improvement in data quality and utilization will be vital for ensuring the protection of Earth from potential threats posed by NEOs.

For further details about ongoing initiatives in NEO monitoring, resources are available through the EU Space Programme’s dedicated portal.