01946nam 2200553 450 991071209780332120190321145557.0(CKB)5470000002489119(OCoLC)1090353755(EXLCZ)99547000000248911920190321d1997 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierCritical to US security the development of the Gambit and Hexagon satellite reconnaissance systems /Gerald K. Haines[Chantilly, Virginia] :NRO,1997.1 online resource (iv, 102 pages)Secret--redacted.Declassified with portions of text deleted.Includes bibliographical references and index.Critical to US security Space surveillanceUnited StatesHistoryAstronautics, MilitaryUnited StatesMilitary surveillanceUnited StatesHistoryArtificial satellites, AmericanHistoryArtificial satellites, AmericanfastAstronautics, MilitaryfastMilitary surveillancefastSpace surveillancefastUnited StatesfastHistory.fastSpace surveillanceHistory.Astronautics, MilitaryMilitary surveillanceHistory.Artificial satellites, AmericanHistory.Artificial satellites, American.Astronautics, Military.Military surveillance.Space surveillance.Haines Gerald K.1943-1409684United States.National Reconnaissance Office,GPOGPOBOOK9910712097803321Critical to US security3496748UNINA