Introducing a real‑time risk calculator
Researchers have unveiled a system that quantifies the likelihood of collisions between operational satellites and orbital debris. The CRASH Clock provides up‑to‑the‑minute assessments of how quickly collision risk escalates for individual spacecraft.
How the model works
The algorithm merges current orbital data for thousands of objects with statistical models of debris generation. It accounts for relative velocities that often exceed several kilometres per second in low Earth orbit.
Illustrative impact scenario
A hypothetical strike by a hockey‑puck‑sized fragment on a Starlink satellite at roughly 10 km/s would release kinetic energy comparable to about 2 kg of TNT – similar to a fully loaded truck travelling at 100 km/h.
Implications for the space industry
The CRASH Clock’s findings highlight that collision risk is not only increasing but accelerating. Satellite operators, especially those managing large constellations, will need to allocate more resources to avoidance manoeuvres and debris remediation.
Future outlook
Integration of the tool into daily mission planning for commercial operators and space agencies is planned, aiming to trigger timely protective actions and improve safety in near‑Earth space.