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Space tracking and surveillance system

American military satellite program to research the detection and tracking of ballistic missiles

Pronunciation
/speɪs ˈtrækɪŋ ænd sərˈveɪləns ˈsɪstəm/
/speɪs ˈtrakɪŋ ənd səˈveɪəns ˈsɪstəm/
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