The Space Tracking and Surveillance System (STSS) is a space-based system developed and operated by the Missile Defense Agency (MDA) that detects and tracks ballistic missiles. This system is an experimental component of the U.S. Ballistic Missile Defense System (BMDS) and STSS serves as a complement to other U.S. space-based platforms and was intended to...| Missile Threat
The Ground-based Midcourse Defense (GMD) is the United States’ homeland missile defense system, designed to protect all 50 states from a limited long-range ballistic missile attack. A global system, GMD and its associated elements span 15 time zones. These elements include Ground-based Interceptors (GBIs) at two locations: Ft. Greely, Alaska, and Vandenberg AFB, CA. GMD integrates...| Missile Threat
DSP is a satellite constellation in geosynchronous orbit that detects rocket launches and nuclear detonations.| Missile Threat
