Space Debris Tracking
Orbital Radar is a live space debris tracking tool that visualises orbital debris, fragmentation events, and active satellites in real time across Low Earth Orbit (LEO), Medium Earth Orbit (MEO), and Geostationary Orbit (GEO). This guide explains how debris tracking works, why live monitoring matters, and how to explore real debris fields.
Last updated: · Sources: Space-Track, CelesTrak, ESA DISCOS
Quick definition
Space debris includes defunct satellites, spent rocket bodies, and fragmentation debris. Debris tracking combines observation data and orbital models to estimate where objects are now and where they will be next.
Debris tracking forms one part of a broader discipline known as Space Situational Awareness (SSA), which also covers live satellite monitoring (such as ISS tracking), launch awareness, anomaly detection, re-entry tracking, and space weather context.
- LEO (Low Earth Orbit) — highest congestion and debris density
- MEO (Medium Earth Orbit) — navigation constellations and transfer orbits
- GEO (Geostationary Orbit) — geostationary belt and nearby drift orbits
What is space debris tracking?
Space debris tracking is the continuous monitoring of orbital objects to understand their position, trajectory, and potential collision risk. It covers defunct satellites, rocket bodies, and fragmentation debris generated by breakups, anti-satellite tests, or accidental collisions.
Because objects travel at orbital speeds (roughly 7.8 km/s in LEO), even small fragments carry enormous kinetic energy. Tracking builds situational awareness of the evolving orbital environment. The International Space Station performs debris avoidance manoeuvres several times per year, and mega-constellations like Starlink use autonomous collision avoidance daily.
Current tracking networks catalogue objects larger than about 10 cm in LEO using ground-based radar and optical telescopes. Below that threshold, debris is statistically modelled rather than individually tracked — but even a 1 cm fragment can disable a spacecraft. For the full scale of the problem, see Space Debris Statistics.
Why live orbital monitoring matters
The orbital environment changes constantly: objects drift, atmospheric drag alters orbits, and catalogue updates refine predictions. Live orbital monitoring helps you understand what is happening now rather than relying on a static, historical snapshot.
- Visualise congestion and traffic patterns across orbital regimes
- Explore debris fields from major fragmentation events
- Improve analyst intuition for orbital planes, inclination, and altitude bands
- Support education, research, and operational awareness
- Track how satellite population growth changes the risk landscape
Orbital Radar is designed for fast exploration: pan the globe, inspect objects, and compare debris against active constellations. If you are building intuition or doing high-level analysis, this live view is often more useful than raw catalogue lists.
How Orbital Radar tracks space debris
Orbital Radar uses frequently updated two-line element sets (TLEs) and propagates them forward to produce a live visualisation. Instead of "where it was", you can explore where it is and how it moves over time.
- Updated orbital elements — reflects catalogue refreshes from Space-Track, CelesTrak, and other sources
- Real-time propagation — estimates current position and motion on the 3D globe
- Debris grouping — separate views for major debris sources and events
- Interactive exploration — inspect objects, compare orbital planes, and understand geometry
How to track debris using Orbital Radar
Use this workflow to explore debris fields quickly and get meaningful insight:
- Launch the globe and enable the Debris layer or group you want to explore from the left-hand menu.
- Zoom to LEO and look for banding patterns by altitude and orbital plane inclination.
- Filter by group — isolate a specific fragmentation event (e.g. Fengyun-1C) to reduce clutter.
- Inspect objects — click to see altitude, inclination, period, and object type classification.
- Compare against active satellites — enable Starlink, OneWeb, or other layers to see where debris intersects operational orbits.
Major debris-generating events
Several high-profile events have significantly increased the catalogued debris population. Each event's debris field can be explored individually on the Orbital Radar globe.
Common debris tracking use cases
Research & education
Teach orbital mechanics concepts visually: inclination, altitude bands, orbital planes, and how debris evolves over time.
- LEO congestion awareness
- Fragmentation debris field visualisation
- Understanding orbital regimes
- Kessler Syndrome scenario exploration
Situational awareness
Quickly answer "what is happening in orbit?" by isolating debris vs active satellites and seeing where the environment is densest.
- Debris vs constellation overlap
- Hotspot identification by altitude
- High-level risk intuition building
- Active debris removal context
Who tracks space debris?
Debris tracking is a global effort involving military, civilian, and commercial organisations. Understanding who tracks space debris helps you interpret the data and its limitations.
- 18th Space Defense Squadron (US) — operates the Space Surveillance Network. Data shared via Space-Track.org.
- ESA Space Debris Office — maintains the DISCOS database and produces annual debris environment reports.
- LeoLabs — commercial phased-array radar network providing high-cadence tracking data for LEO.
- National agencies — ISRO, JAXA, CNES, and others operate national tracking assets.
Orbital Radar aggregates publicly available catalogue data from these sources. For details, see Data Sources.
Frequently asked questions
Defunct satellites, spent rocket bodies, mission-related objects, and fragmentation debris from breakups or collisions. Tracking networks catalogue objects larger than about 10 cm in LEO, but millions of smaller, untracked fragments also exist.
As of 2026, the US Space Surveillance Network catalogues over 36,000 objects. ESA estimates around 1 million objects between 1–10 cm and over 130 million smaller than 1 cm.
The US 18th Space Defense Squadron, ESA's Space Debris Office, and various national agencies. Commercial providers like LeoLabs and ExoAnalytic Solutions also contribute. Read more.
Speed and direction depend on altitude, inclination, and orbital type. LEO objects orbit in roughly 90 minutes. GEO objects match Earth's rotation and appear nearly stationary.
A theoretical chain reaction where collisions generate fragments that cause further collisions, potentially making certain altitudes unusable. Read the full explainer.
Yes — Orbital Radar groups debris by source event. Isolate a debris cloud for clarity, then layer in active satellite groups to compare orbital overlap.
No. Orbital Radar focuses on live visualisation and situational awareness. Conjunction assessment and collision avoidance are specialised operational services.