Earthfence Deep Space Radar (GEO)
Thoth Technology
Fully digital, pulse-compression ground-based radar for tracking meter-scale objects in geostationary and cislunar orbits.
Technical specifications
- System type
- Fully digital, pulse-compression radar (software-defined RF)
- Tracking range
- Up to 50,000 km (GEO), extending into XGEO / cislunar space
- Alternate stated range
- Up to 100,000 km above Earth (Earthfence GEO data-as-a-service)
- Ranging accuracy
- Better than 25 m
- Target size
- Meter-scale objects
- Target types
- Known GEO assets and unknown targets (e.g., orbital debris)
- Delivery model
- Data-as-a-service (radar data feed)
- Sensor location
- Algonquin Radio Observatory, Canada
- Applications
- Spacecraft navigation, surveillance of space, space traffic management, collision avoidance
About
Earthfence GEO is the world’s first commercial Deep Space Radar (DSR), a fully digital, software-defined, pulse-compression radar system built by Thoth Technology for Space Domain Awareness (SDA). It actively tracks meter-scale objects in geostationary (GEO) orbits out to 50,000 km and beyond into cislunar/XGEO space, detecting and ranging both known geostationary assets and unknown targets such as orbital debris. Target detection is validated using radar cross-section, spacecraft dimension, and antenna configuration analysis, and the system continuously tracks targets over hours or days to build high-resolution orbits and range rates. Ranging data accuracy exceeds 25 m, sufficient for spacecraft navigation, surveillance of space, space traffic management, and collision avoidance. Data is delivered as a service from Thoth’s sensor provider at the Algonquin Radio Observatory in Canada, with plans to expand to a global GEO radar ranging network.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
