| Groundbased Optical | AMOS | 3.67 m Advanced Electro-Optical System (AEOS) and 1.6 m / 1.2 m optical telescope | LEO satellites and Deep Space Surveillance, Adaptive Optics System, Imaging System, Conventional and contrast mode photometers, infrared radiometers | Maui |
| GEODSS | 3 optical telescope with 1 m aperture and 2° FoV | Tracking objects in Deep space GEODSS can track objects as small as a basketball more than 30,000 km in space. | Socorro, Maui, Diego Garcia |
| Tenerife | Telescope with 1 m aperture and 0.7° FoV | Space debris telescope that covers a sector of 120° of the GEO ring 2 2 mosaic CCDs of 2,048 by 2,048 pixels (corresponding to 15 cm objects at GEO altitude) | Tenerife |
| ZIMLAT | Telescope with 1 m aperture and 0.5° FoV | Space telescope that covers a sector of 100° of the GEO ring, dedicated to GEO survey, Astrometry and laser ranging | Zimmerwald |
| Groundbased Radar | AN/FPS-85 | UHF Phased-array radar | Maximum peak power: 30 MW, It can detect 1.0 m2 objects in geosynchronous orbits and can track 200 near earth targets simultaneously | Florida |
| Space Fence | New S-band radar replaced VHF Fence | Detect 75 cm objects at 30,000 km. It will detect and track as many as 150,000 additional man-made objects, some as small as a golf ball. | Kwajalein Atoll etc. |
| Globus II | X-band mono-pulse radar with a 27 m parabolic dish antenna | US SSN and Fylingdales are only available Track spacecraft of all types up to range of 4,000 km | Vardo, Norway |
| GRAVES | Bistatic VHF radar, with four planar phased-array antennas of 15 m by 6 m each | This system produces a ‘self-starting’ catalogue. Typically 1 m in size and larger in LEO | Plateau d’Albion |
| TIRA | L-band and Ku-band radar using 34-m parabolic reflector | Radar images of space objects at a distance up to 20,000 km at Ku-band About 2 cm at 1,000 km range | Wachtberg, Germany |
| Spacebased Optical | SBSS | Constellation of satellites with 30 cm diameter telescope on a twoaxis gimbal with a 2.4 megapixel Space Based Visible (SBV) sensor | Operate 24-hours a day Detection of deep space object. It can monitor objects as small as a 1-meter cube all the way out to the Geosynchrounous belt | Space |