EntityQ377332· pop 9· linked from 82 articlesDiscoverer 14Sign in to savereconnaissance satelliteConnectionsCoronaEntityUnited States Air ForceEntityDefense Advanced Research Projects AgencyEntityProject EchoEntityCourier 1BEntityMissile Defense Alarm SystemEntityHonoluluEntityInternational Standard Book NumberEntityorbital periodEntityOCLC, Inc.EntityapsisEntityGeneral ElectricCompanylow Earth orbitEntityorbital inclinationEntityUnited States Department of DefenseConceptorbital eccentricityEntityepochEntityLockheed U-2EntityVostok programmeEntityreconnaissance satelliteEntityCategoriesImaging reconnaissance satellitesReconnaissance satellites of the United StatesSpacecraft launched in 1960Spacecraft which reentered in 1960