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OBSOLETE. A distributed set of low earth orbit satellites that may provide launch detection and booster tracking, and that serve as kinetic or kinetic energy interceptors of boosters, PBVs, and/or RVs. (USSPACECOM)
- Browse Related Terms: Constellation Size (CSIZE), ELS, GEO, HEO, LEO, Low Earth Orbit (LEO), MEO, MOLNIYA Orbit, Orbiting Debris, SBIRS GEO, SBIRS HEO, SBIRS LEO, Space Based Infrared System (SBIRS), Space-Based Interceptor (SBI), Space-Based Surveillance and Tracking System (SSTS)