EntityQ606848· pop 6· linked from 66 articlesDiscoverer 10Sign in to saveAmerican military reconnaissance satelliteConnectionsCoronaEntityUnited States Air ForceEntityProject EchoEntityCourier 1BEntityMissile Defense Alarm SystemEntityInternational Standard Book NumberEntityOCLC, Inc.EntityGeneral ElectricCompanyUnited States Department of DefenseConceptLockheed U-2EntityVostok programmeEntityDefense Advanced Research Projects AgencyEntityreconnaissance satelliteEntityLockheed CorporationEntityKorabl-Sputnik 2EntitySatellite Catalog NumberEntityNational Reconnaissance OfficeEntityKorabl-Sputnik 1EntityTIROS-1Entityspacecraft busEntityCategoriesSpacecraft launched in 1960