EntityQ1884510· pop 6· linked from 108 articlesMagnumSign in to savemodel of American signals intelligence satelliteConnectionssignals intelligenceEntitySTS-51-CEntityOrionEntityUnited StatesCountryChinaCountryEarthConceptSoviet UnionConceptIndian OceanEntityphotographyEntityUTCEntityCentral Intelligence AgencyEntityWayback MachineEntitySpace ShuttleEntityKennedy Space CenterEntityEdward Mills PurcellEntitycommunications satelliteEntitygeostationary orbitEntitylow Earth orbitEntitysignalEntityDiscoveryEntityCategoriesMilitary equipment introduced in the 1980sReconnaissance satellites of the United StatesSignals intelligence satellites