| gptkbp:instanceOf | gptkb:reconnaissance_satellite_program 
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                                | gptkbp:countryOfOrigin | gptkb:United_States 
 | 
                        
                            
                                | gptkbp:declassificationYear | 1995 (partial) 
 | 
                        
                            
                                | gptkbp:firstReleased | 1959 
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                                | gptkbp:includes | gptkb:KH-1 gptkb:KH-2
 gptkb:KH-3
 gptkb:KH-4
 gptkb:KH-4A
 gptkb:KH-4B
 gptkb:KH-5_Argon
 gptkb:KH-7_Gambit
 gptkb:KH-9_Hexagon
 gptkb:KH-11_Kennan
 gptkb:KH-13_(alleged)
 gptkb:KH-6_Lanyard
 gptkb:KH-8_Gambit-3
 KH-12
 
 | 
                        
                            
                                | gptkbp:launchVehicle | gptkb:Atlas-Agena gptkb:Titan_IIIB
 gptkb:Thor-Agena
 gptkb:Titan_III
 
 | 
                        
                            
                                | gptkbp:mainContractor | gptkb:Eastman_Kodak gptkb:Lockheed
 gptkb:Itek
 gptkb:Perkin-Elmer
 
 | 
                        
                            
                                | gptkbp:nickname | gptkb:Big_Bird_(KH-9) gptkb:Crystal_(KH-11)
 
 | 
                        
                            
                                | gptkbp:notableFeature | optical reconnaissance high-resolution imaging
 film canister recovery
 real-time imaging (KH-11)
 
 | 
                        
                            
                                | gptkbp:notableMission | Cuban Missile Crisis reconnaissance Soviet Union monitoring
 Vietnam War surveillance
 
 | 
                        
                            
                                | gptkbp:operatedBy | gptkb:National_Reconnaissance_Office gptkb:United_States
 
 | 
                        
                            
                                | gptkbp:purpose | photographic reconnaissance 
 | 
                        
                            
                                | gptkbp:relatedTo | gptkb:CORONA_program gptkb:Gambit_program
 gptkb:Hexagon_program
 gptkb:KH-11_program
 
 | 
                        
                            
                                | gptkbp:status | partially declassified 
 | 
                        
                            
                                | gptkbp:successor | gptkb:Crystal_(satellite) 
 | 
                        
                            
                                | gptkbp:technology | film-return electro-optical imaging
 
 | 
                        
                            
                                | gptkbp:usedBy | gptkb:Central_Intelligence_Agency gptkb:United_States_Air_Force
 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Project_Corona 
 | 
                        
                            
                                | gptkbp:bfsLayer | 5 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Keyhole (KH) series 
 |