U.S. Deployed Sensor Systems

Sensors and Missile Defense

An effective layered defense incorporates a wide-range of sensors to detect and track threat missiles through all phases of their trajectory. Satellites and a family of land-and sea-based radars provide worldwide sensor coverage.

RC-135S Cobra Ball

Quick Facts Role and Mobility Intelligence, Surveillance, and Reconnaissance; Air-mobile Targets Ballistic Missiles Range 3,900 miles (6,500 km) unrefueled Sensors All Weather Tracking Read More

AN/SPY-1 Radar

Quick Facts Mobility Sea-based is highly mobile; land-based has low mobility Role Primary radar for Aegis BMD Deployment Deployed on all 85 U.S. Read More

AN/MPQ-53/65 Radar

Quick Facts Mobility Road-mobile Role Patriot fire control radar Deployment Germany, Greece, Israel, Japan, Kuwait, the Netherlands, Poland, Qatar, Romania (Est. 2019 Delivery), Read More

Army/Navy Transportable Radar Surveillance (AN/TPY-2)

Quick Facts Mobility Transportable by air, ship, and truck; moderate mobility Role Forward-based radar for BMDS; Primary terminal radar for THAAD Deployment Israel, Turkey Read More

Cobra Dane

Quick Facts Mobility Stationary Role Long-range radar for U.S. ballistic missile defense system Frequency L-Band Range 2,000 miles (3,200 km) Status Deployed at Read More

Defense Support Program

Quick Facts Mobility Satellites in GEO Role Strategic and tactical missile launch detection Status Five satellites in geosynchronous orbit Producer Northrop Grumman Overview Read More

Space-Based Infrared System (SBIRS)

Quick Facts Mobility Satellites and sensors in GEO and HEO Role Mission areas include missile defense, missile warning, technical intelligence and  battlespace awareness Read More

Sea-Based X-Band Radar (SBX)

Quick Facts Mobility Sea-based, mounted on a semi-submersible vessel that is able to travel at up to 8 knots Role Detect, track, and Read More

Space Tracking and Surveillance System (STSS)

Quick Facts Mobility Deployed in low earth orbit Role Track and discriminate missiles in all phases of flight and provide data for missile defense Read More

Upgraded Early Warning Radars (UEWR)

Quick Facts Mobility Stationary Role Provide detection and tracking of ballistic missiles and interceptors, and classification of space objects Frequency Ultra High Frequency Read More

Space-based Kill Assessment (SKA)

Facts Mobility Space-based sensors hosted on commercial satellites Role Sensors to detect, measure, and assess kinetic kill Status Network of sensors deployed Producer Read More

Missile Defense