The "target" values for the development effort when insufficient data is available for stating binding technical requirements
Ballistic Missile Defense, Glossary, Version 3.0, Department of Defense, Ballistic Missile Defense Organization, Defense Pentagon, Washington, DC, USA 1997. https://www.google.com.kw/search?q=Ballistic+Missi le+Defense+Glossary.+Version+3.0%2C+June+1997& rlz=1C1BLWB_enKW586KW586&oq=Ballistic+Missile+ Defense+Glossary.+Version+3.0%2C+June+1997&aqs =chrome..69i57.881j0j4&sourceid=chrome&es_ sm=122&ie=UTF-8, (Ballistic Missile Def - Amer) {1025}