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Home 1966 Summary
1965 spacecrafts 1967 spacecrafts
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The 174 spacecrafts launched in 1966 :
1) Kosmos 104 / Zenit-2 36 2) P-35-14 / DAPP 14 3) Improve Samos 24  / KH-7 24 4) Agena Pickaback
5) Kosmos 105 / Zenit-2 38 6) Kosmos 106 / DS-P1-I 1 7) Transit 11 / NNS O-7 8) Luna 9
9) Discoverer 100 / KH-4A 10) ESSA 1 11) FOBS test 12) Ferret 9
13) Kosmos 107 / Zenit-2 34 14) Kosmos 108 / DS-U1-G 1 15) Improve Samos 25 / KH-7 25 16) Bluebell 2C
17) Bluebell 2S 18) D-1A / Diapason 1 19) Kosmos 109 / Zenit-4 20) Kosmos / DS-K-40 2
21) Kosmos 110 / Voskhod 3KV 5 22) Apollo AS-201 23) ESSA-2 24) Kosmos 111 / E-6S 204
25) Discoverer 101 /  / KH-4A 26) GATV 8 / TDA 3 27) Gemini VIII 28) Kosmos 112 / Zenit-2 37
29) FOBS test 30) Improve Samos 26 / KH-7 26 31) Agena Pickaback 32) Kosmos 113 / Zenit-4
33) Proton 34) Transit 12 / NNS O-8 35) Molniya 36) A-302 / SPP 28
37) OV 1-4 38) OV 1-5 39) P-35-15 / DAPP 15 40) Luna 10
41) Kosmos 114 / Zenit-4 42) Discoverer 102 / KH-4A 43) Surveyor Model 3 /AC-7) 44) OAO 1
45) Improve Samos 27 / KH-7 27 46) Kosmos 115 / Zenit-2 35 47) OV 3-1 48) Molniya 1-3
49) Kosmos 116 / DS-P1-Yu 6 50) Discoverer 103 / KH-4A 51) Kosmos 117 / Zenit-2 39 52) Kosmos 118 / Meteor 4
53) Improve Samos 28 / KH-7 28 54) Hitchhiker 11 55) Nimbus 3 56) Kosmos / Zenit-4
57) GATV 9 / TDA 5 58) Transit 13 / NNS O-9 59) FOBS test 60) Discoverer 104 / KH-4A
61) Kosmos 119 / DS-U2-I 1 62) Explorer 32 / AE-B 63) Surveyor 1 64) ATDA / TDA 4
65) Gemini IX-A -- Astronaut Cernan 66) Impove Samos 29 / KH-7 29 67) Agena Pickaback
68) OGO 3 / EOGO 3 69) Kosmos 120 / Zenit-2 41 70) Midas 10 / Improve Midas 1 71) Secor 6 / EGRS 6
72) ERS 16 / ORS 2 73) OV 3-4 74) GGTS 1 75) IDSCP 1-1
76) IDSCP 1-2 77) IDSCP 1-3 78) IDSCP 1-4 79) IDSCP 1-5
80) IDSCP 1-6 81) IDSCP 1-7 82) Kosmos 121 / Zenit-4 83) Discoverer 105 / KH-4A
84) Pageos A 85) Kosmos 122 / Meteor 86) Explorer 33 /  / AIMP D 87) Apollo 2 / AS-203
88) Proton 3 89) Kosmos 123 / DS-P1-Yu 5 90) Improve Samos 30 /  / KH-7 30 91) OV 1-8
92) OV 1-7 93) OV 1-subsat 94) Kosmos 124 / Zenit-2 42 95) GATV 10 / TDA 1A
96) Gemini X 97) Kosmos 125 / US-A 98) Kosmos 126 / Zenit-4 99) Titan Samos 1 / KH-8 1 GAMBIT
100) OV 3-3 101) Kosmos 127 / Zenit-4 102) Discoverer 106 / KH-4A 103) Lunar Orbiter 1
104) Improve Samos 31 / KH-7 31 105) Hitchhiker 12 106) Pioneer 7 107) Transit 14 / NNS O-10
108) Midas 11 / Midas RTS 2 109) Secor 7 / EGRS 7 110) ERS 15 / ORS 1 111) Luna 11
112) Apollo AS-202 113) IDCSP 8 114) IDCSP 9 115) IDCSP 10
116) IDCSP 11 117) IDCSP 12 118) IDCSP 13 119) IDCSP 14
120) IDCSP 15 121) Kosmos 128 / Zenit-4 122) GATV 11 / TDA 6 123) Gemini XI
124) Kosmos / Zenit-2 40 125) P-35-16 126) Improve Samos 32 / KH-7 32 127) Hitchhiker 13
128) FOBS tesN 129) Surveyor 2 130) Discoverer 107  / KH-4A 131) "Osumi #1"
132) Titan Samos 2 / KH-8 2 GAMBIT 133) ESSA 3 134) Midas 12 / Improve Midas 2 135) Secor 8/ EGRS 8
136) Improve Samos 33 / KH-7 33 137) SGLS 1 138) Kosmos 129 / Zenit-2 33 139) Molniya 1-4
140) Kosmos 130 / Zenit-4 141) Luna 12 142) Surveyor Model 4 (AC-10) 143) Intelsat 2A
144) OV 3-2 145) FOBS test 146) Improve Samos 34 / KH-7 34 147) Agena Pickaback
148) OV 4-3 149) MOL / Gemini B 150) OV 4-1R 151) OV 4-6S
152) OV 4-1T 153) Lunar Orbiter 2 154) Discoverer 108 / KH-4A 155) GATV 12 / TDA 7
156) Gemini XII 157) Kosmos 131 / Zenit-4 158) Kosmos / Strela-2 159) Kosmos 132 / Zenit-2 46
160) Kosmos 133 / Soyuz 7K-OK 2 161) Kosmos 134 / Zenit-4 162) Improve Samos 35  / KH-7 35 163) ATS 1
164) OV 1-9 165) OV 1-10 166) Kosmos 135 / DS-U2-MP 1 167) Ksmos / Soyuz 1
168) Titan Samos 3 / KH-8 3 GAMBIT 169) Biosatellite 1 170) Kosmos 136 / Zenit-2 47 171) "Osumi #2"
172) Luna 13 173) Kosmos 137 / DS-U2-D 1 174) Ferret 10
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Spacecraft Entries
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Kosmos 104
Spacecraft:  Zenit-2 No. 36
Numbers: 1966 payload #1 ; 1966-001A ; 660th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 7 January 1966 at 8h24 UTC, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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P-35-14 / DAPP 14
Spacecraft:  OPS 2394 / DMSP-Block-4A F5
Data Acquisition and Processing Program
Numbers: 1966 payload #2 ; 1966 1st loss ; 661st spacecraft.
Type: Meteorology
Sponsor: U.S. Air Force
Launch: 8 January 1966 at 4h48 UTC, from Vandenberg Air Force Base's LC-4300B6, by a Thor-Burner (Thor Burner 1 251).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Improve Samos 24 / KH-7 24
Spacecraft:  OPS 7253 / AFP-206 [F24]
Numbers: 1966 payload #3 ; 1966-002A ; 662nd spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 19 January 1966 at 20h09 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 150 km x 269 km x 93.9° 
Decayed: 23 January 1966 (6.0 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
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Agena Pickaback
Spacecraft:  OPS 3179
Numbers: 1966 payload #4 ; 1966-002B ; 663rd spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 19 January 1966 at 20h09 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 105
Spacecraft:  Zenit-2 No. 38
Numbers: 1966 payload #5 ; 1966-003A ; 664th spacecraft.
Type: Reconnaissance
Sponsor: U.S. Air Force
Launch: 22 January 1966 at 8h38 UTC, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 106
Spacecraft:  DS-P1-I No. 1
Numbers: 1966 payload #6 ; 1966-004A ; 665th spacecraft.
Type: Antimissile technologies
Sponsor: Soviet Union's Defense ministry
Launch: 25 January 1966 at 12h28 UTC, from Kapustin Yar Cosmodrome's LC-86/1, by a Kosmos B-1 (63S1M).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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 Transit 11 / Transit O-7 / NNS O-7
Spacecraft: 
Numbers: 1966 payload #7 ; 1966-005A ; 666th spacecraft.
Type: Navigation
Sponsor: U.S. Navy
Launch: 28 January 1966 at 17h06 UTC, from Vandenberg Air Force Base's PALC-D, by a Scout A (S142C).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Luna 9
Spacecraft:  E-6 No. 11 SA
Numbers: 1966 payload #8 ; 1966-006A ; 667th spacecraft.
Type: Lunar probe
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 31 January 1966 at 11h41 UTC, from Baykonur Cosmodrome's LC-31, by an A-2-e/"Molniya" (8K78M U103-32).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Discoverer 100 / CORONA 1029 / KH-4A
Spacecraft:  OPS 7291
Numbers: 1966 payload #9 ; 1966-007A ; 668th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 2 February 1966 at 21h32 UTC, from Vandenberg Air Force Base's PALC1-1, by a Thor-Agena D (Thor 2C 450 / Agena D SS-01B 1623).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
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ESSA 1 / Tiros OT3
Spacecraft:  ESSA stands for Environmental Science Services Administration.
Numbers: 1966 payload #10 ; 1966-008A ; 669th spacecraft.
Type: Meteorology
Sponsor: ESSA
Launch: 3 February 1966 at 7h41 UTC, from Cape Canaveral's LC-17A, by a Delta DSV-3C (Thor Delta C 445 / Delta 36).
Orbit:
Decayed:
Mission:
Notes: On 3 February 1964, NASA and Department of Commerce announced agreement to develop National Operational Meteorological satellite system (NOMSS). NOMS would be based on NASA-developed TIROS technology and would become operational in 1965. This joint program was expected to save Dept. of Commerce some $125 million over five-year period. Once NASA orbited the satellites, Weather Bureau would operate and control the system and analyze, process, and distribute the meteorological data gathered by the satellites. Under reimbursable order from Weather Bureau, NASA would design, procure, test, launch, and track the weather satellites.
     On 13 May 1965, President Johnson transmitted to Congress a plan to merge the Weather Bureau, the Coast and Geodetic Survey, and the Central Radio Propagation Laboratory of the National Bureau of Standards into an Environmental Science Services Administration. “The new administration will then provide a single national focus for our efforts to describe, understand, and predict the state of the oceans, the state of the lower and upper atmospheres and the size and shape of the earth … as well as enhance our ability to develop an adequate warning system for the severe hazards of nature … which have proved so disastrous to the Nation in recent years.” He added that Federal agencies “concerned with the national defense [and the] exploration of outer space” would receive improved services and that combining of offices and technical facilities would save money
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Astronautical Events of 1964, p. 43 ; Astronautics and Aeronautics 1965, p. 229 ;
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FOBS test
Spacecraft:  OGCh
Numbers: 1966 payload #11 ; 1966 n/a ; 670th spacecraft.
Type: Fractional bombardment system
Sponsor: Soviet Union's Defense ministry
Launch: 5 February 1966, from Baykonur Cosmodrome's LC-67, by a R-36-0.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Ferret 9
Spacecraft:  OPS 1439
Numbers: 1966 payload #12 ; 1966-009A ; 671st spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 9 February 1966 at 19h45 UTC, from Vandenberg Air Force Base's LC-75-1-2, by a Thor-Agena D (Thor 2C 428 / Agena D SS-01B 2703).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 107
Spacecraft:  Zenit-2 No. 34
Numbers: 1966 payload #13 ; 1966-010A ; 672nd spacecraft.
Type: Reconnaissance
Sponsor: U.S. Air Force
Launch: 10 February 1966 at 8h52 UTC, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 108
Spacecraft:  DS-U1-G No. 1
Numbers: 1966 payload #14 ; 1966-011A ; 673rd spacecraft.
Type: Earth upper atmospheere studies (civil)
Sponsor: Soviet Union
Launch: 11 February 1966 at 18h00 UTC, from Kapustin Yar Cosmodrome's LC-86/1, by a Kosmos B-1 (63S1).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Improve Samos 25 / KH-7 25
Spacecraft:  OPS 1184 / AFP-206 [F25]
Numbers: 1966 payload #15 ; 1966-012A ; 674th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 15 February 1966 at 20h24 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 148 km x 293 km x 96.5° 
Decayed: 23 February 1966 (7.4 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
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Bluebell 2C (Cylinder) / Bluebell 2 Cylinder
Spacecraft:  OPS 3011
Numbers: 1966 payload #16 ; 1966-012B ; 675th spacecraft.
Type: Radar calibration
Sponsor: U.S. Air Force 
Launch: 15 February 1966 at 20h24 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Bluebell 2S (Sphere) / Bluebell 2 Sphere
Spacecraft:  OPS 3031
Numbers: 1966 payload #17 ; 1966-012C ; 676th spacecraft.
Type: Radar calibration
Sponsor: U.S. Air Force
Launch: 15 February 1966 at 20h24 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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D-1A / Diapason 1
Spacecraft: 
Numbers: 1966 payload #18 ; 1966-013A ; 677th spacecraft.
Type: Geodesy
Sponsor: France
Launch: 17 February 1966 at 8h33 UTC, from Hammaguira Launchg Center's Brigitte, by a Diamant A (No. 2).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 109
Spacecraft:  Zenit-4
Numbers: 1966 payload #19 ; 1966-014A ; 678th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 19 February 1966 at 8h52 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos
Spacecraft:  DS-K-40 No. 2
Numbers: 1966 payload #20 ; 1966 2nd loss ; 679th spacecraft.
Type: Military technologies
Sponsor: Soviet Union
Launch: 21 February 1966, from Kapustin Yar Cosmodrome's LC-86/1, by a Kosmos B-1 (63S1).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 110
Spacecraft:  Voskhod 3KV No. 5
Numbers: 1966 payload #21 ; 1966-015A ; 680th spacecraft.
Type: Piloted spacecraft test
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 22 February 1966 at 20h13 UTC, from Baykonur Cosmodrome's LC-31A, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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AS-201 / Apollo-Saturn 201
Spacecraft:  Apollo CSM 009
Numbers: 1966 payload #22 ; 1966 n/a ; 681st spacecraft.
Type: Piloted spacecraft test
Sponsor: NASA
Launch: 26 February 1966 at 11h12 UTC, from Cape Canaveral's LC-34, by a Saturn IB (SA-201).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;

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ESSA 2 / Tiros OT2
Spacecraft:  ESSA stands for Environmental Science Services Administration.
Numbers: 1966 payload #23 ; 1966-016A ; 682nd spacecraft.
Type: Meteorology
Sponsor: ESSA
Launch: 28 February 1966 at 13h58 UTC, from Cape Canaveral's LC-17B, by a Delta DSV-3E (Thor Delta E 461 / Delta 37).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 111
Spacecraft:  E-6S No. 204
Numbers: 1966 payload #24 ; 1966-017A ; 683rd spacecraft.
Type: Lunar probe
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 1st March 1966 at 11h02 UTC, from Baykonur Cosmodrome's LC-31, by an A-2-e/"Molniya" (8K78M N103-41).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Discoverer 101 / CORONA 1030 / KH-4A
Spacecraft:  OPS 3488
Numbers: 1966 payload #25 ; 1966-018A ; 684th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 9 March 1966 at 22h02 UTC, from Vandenberg Air Force Base's LC-75-3-4, by a Thor-Agena D (Thor 2C 452 / Agena D SS-01B 1622).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
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GATV 8 / TDA 3
Spacecraft:
Numbers: 1966 payload #26 ; 1966-019A ; 685th spacecraft.
Type: Piloted spacecraft rendezvous target
Sponsor: NASA
Launch: 16 March 1966 at 15h00 UTC, from Cape Canaveral's LC-14, by an Atlas-Agena D (Atlas 5302 / Agena D 5003).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Gemini VIII
Spacecraft:  Gemini SC8
Numbers: 1966 payload #27 ; 1966-020A ; 686th spacecraft.
Type: Piloted spacecraft
Sponsor: NASA
Launch: 16 March 1966 at 16h41 UTC, from Cape Canaveral's LC-19, by a Titan 2 (GT-8).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 112
Spacecraft:  Zenit-2 No. 37
Numbers: 1966 payload #28 ; 1966-021A ; 687th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 17 March 1966 at 10h28 UTC, from Plesetsk Cosmodrome's LC-41/1, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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FOBS test
Spacecraft:  OGCh
Numbers: 1966 payload #29 ; 1966 n/a ; 688th spacecraft.
Type: Fractional bombardment system
Sponsor: Soviet Union's Defense ministry
Launch: 16 March 1966 at 22h00 UTC, from Baykonur Cosmodrome's LC-67, by a R-36-0.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Improve Samos 26 / KH-7 26
Spacecraft:  OPS 0879 / AFP-206 [F26]
Numbers: 1966 payload #30 ; 1966-022A ; 689th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 18 March 1966 at 20h24 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 162 km x 308 km x 101.0° 
Decayed: 23 March 1966 (5 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
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Agena Pickaback
Spacecraft:  OPS 0974 / NRL PL137
Numbers: 1966 payload #31 ; 1966-22B ; 690th spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 18 March 1966 at 20h24 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Kosmos 113
Spacecraft:  Zenit-4
Numbers: 1966 payload #32 ; 1966-023A ; 691st spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 21 March 1966 at 9h36 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Proton
Spacecraft:  N-4 No. 3
Numbers: 1966 payload #33 ; 1966 3rd loss ; 692nd spacecraft.
Type: Earth upper atmosphere studies
Sponsor: Soviet Union
Launch: 24 March 1966 at 21h00 UTC, from Baykonur Cosmodrome's LC-81L, by a D/Proton (8K82 211, N-4 No. 3).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Transit 12 / Transit O-8 / NNS O-8
Spacecraft: 
Numbers: 1966 payload #34 ; 1966-024A ; 693rd spacecraft.
Type: Navigation
Sponsor: U.S. Navy
Launch: 26 March 1966 at 3h31 UTC, from Vandenberg Air Force Base's PALC-D, by a Scout A (S143C).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Molniya
Spacecraft:  Molniya-1 No 5
Numbers: 1966 payload #35 ; 1966 4th loss ; 694th spacecraft.
Type: Communications
Sponsor: Soviet Union
Launch: 27 March 1966, from Baykonur Cosmodrome's LC-31, by an A-2-e/"Molniya" (8K78M N103-38).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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A-302 / SPP 28
Spacecraft: 
Numbers: 1966 payload #36 ; 1966-025 ; 695th spacecraft.
Type: Technology?
Sponsor: U.S. Air Force
Launch: 30 March 1966 at 9h20 UTC, from Vandenberg Air Force Base's ABRESB3, by an Atlas D (72D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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OV 1-4
Spacecraft:  OV1-4S
Numbers: 1966 payload #37 ; 1966-025A ; 696th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 30 March 1966 at 9h20 UTC, from Vandenberg Air Force Base's ABRESB3, by an Atlas D.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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OV 1-5
Spacecraft:  OV1-5S (BORE)
Numbers: 1966 payload #38 ; 1966-025 ; 697th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 30 March 1966 at 9h20 UTC, from Vandenberg Air Force Base's ABRESB3, by an Atlas D.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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P-35-15 / DAPP 15
Spacecraft:  OPS 0340 / DMSP-Block-4A F6
Data Acquisition and Processing Program
Numbers: 1966 payload #39 ; 1966-026A ; 698th spacecraft.
Type: Meteorology
Sponsor: U.S. Air Force
Launch: 31 March 1966 at 5h41 UTC, from Vandenberg Air Force Base's LC-4300B6, by a Thor-Burner 1 (147).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
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Luna 10
Spacecraft:  E-6S No. 206
Numbers: 1966 payload #40 ; 1966-027A ; 699th spacecraft.
Type: Lunar probe
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 31 March 1966 at 10h46 UTC, from Baykonur Cosmodrome's LC-31, by an A-2-e/"Molniya" (8K78M N103-42).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 114
Spacecraft:  Zenit-4
Numbers: 1966 payload #41 ; 1966-028A ; 700th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 6 April 1966 at 11h44 UTC, from Plesetsk Cosmodrome'ws LC-41/1, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Discoverer 102 / CORONA 1031 / KH-4A
Spacecraft:  OPS 1612 
Numbers: 1966 payload #42 ; 1966-029A ; 701st spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 7 April 1966 at 22h02 UTC, from Vandenberg Air Force Base's PALC-1-1, by a Thor-Agena D (Thor 2C 474 / Agena D SS-01B 1627).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
.
Surveyor Model 2 / Surveyor SM-2 (AC-7)
Spacecraft:  Centaur 3D
Numbers: 1966 payload #43 ; 1966-030A ; 702nd spacecraft.
Type: Technology
Sponsor: NASA
Launch: 8 April 1966 at 1h00 UTC, from Cape Canaveral's LC-36B, by an Atlas-Centaur (Atlas LV-3C AC-8 / Centaur D 184D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OAO 1
Spacecraft:  OAO A1 / Orbiting Astronomical Observatory
Numbers: 1966 payload #44 ; 1966-031A ; 703rd spacecraft.
Type: Astronomy
Sponsor: NASA
Launch: 8 April 1966 at 19h35 UTC, from Cape Canaveral's LC-12, by an Atlas-Agena D (Atlas 5001 / Agena D 6703).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Improve Samos 27 / KH-7 27
Spacecraft:  OPS 0910 / AFP-206 [F27]
Numbers: 1966 payload #45 ; 1966-032A ; 704th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 19 April 1966 at 19h12 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 145 km x 398 km x 117.0° 
Decayed: 26 April 1966 (6 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
Kosmos 115
Spacecraft:  Zenit-2 No. 35
Numbers: 1966 payload #46 ; 1966-033A ; 705th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 20 April 1966 at 10h48 UTC, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 3-1
Spacecraft: 
Numbers: 1966 payload #47 ; 1966-034A ; 706th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 22 April 1966 at 9h45 UTC, from Vandenberg Air Force Base's PALC-D, by a Scout B (S145C).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Molniya 1-3
Spacecraft: Molniya 1C
Numbers: 1966 payload #48 ; 1966-035A ; 707th spacecraft.
Type: Communications
Sponsor: Soviet Union
Launch: 25 April 1966 at 7h12 UTC, from Baykonur Cosmodrome's LC-31, by an A-2-e/"Molniya" (8K78M N103-39).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 116
Spacecraft:  DS-P1-Yu No. 6
Numbers: 1966 payload #49 ; 1966-036A ; 708th spacecraft.
Type: Military technologies
Sponsor: Soviet Union's Defense ministry
Launch: 26 April 1966 at 10h04 UTC, from Kapustin Yar Cosmodrome's LC-86/1, by a Kosmos B-1 (63S1M).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Discoverer 103 / CORONA 1032 / KH-4A
Spacecraft:  OPS 1508
Numbers: 1966 payload #50 ; 1966 5th loss ; 709th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 3 May 1966 at 19h25 UTC, from Vandenberg Air Force Base's LC-75-3-5, by a Thor-Agena D (Thor 2C 465 / Agena D SS-01B 1625).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
.
Kosmos 117
Spacecraft:  Zenit-2 No. 39
Numbers: 1966 payload #51 ; 1966-037A ; 710th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union
Launch: 6 May 1966 at 11h02 UTC, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 118
Spacecraft:  Meteor No. 4
Numbers: 1966 payload #52 ; 1966-038A ; 711th spacecraft.
Type: Meteorology
Sponsor: Soviet Union
Launch: 11 May 1966 at 14h09 UTC, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Improve Samos 28 / KH-7 28
Spacecraft:  OPS 1950 / AFP-206 [F28]
Numbers: 1966 payload #53 ; 1966-039A ; 712th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 14 May 1966 at 18h28 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 133 km x 358 km x 110.6° 
Decayed: 21 May 1966 (6 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
Hitchhiker 11
Spacecraft:  OPS 6785 / [EHH B4]
Numbers: 1966 payload #54 ; 1966-039B ; 713th spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 14 May 1966 at 18h28 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Nimbus 3
Spacecraft:  Nimbus C
Numbers: 1966 payload #55 ; 1966-040A ; 714th spacecraft.
Type: Meteorology
Sponsor: NASA
Launch: 15 May 1966 at 7h55 UTC, from Vandenberg Air Force Base's LC-75-1-1, by a Thor-Agena B (Thor 456 / Agena B S-01 6202 (TA6)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos
Spacecraft:  Zenit-4
Numbers: 1966 payload #56 ; 1966 6th loss ; 715th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union
Launch: 17 May 1966, from Plesetsk Cosmodrome's LC-41, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
GATV 9 / TDA 5
Spacecraft: 
Numbers: 1966 payload #57 ; 1966 7th loss ; 716th spacecraft.
Type: Piloted space4craft rendezvous target
Sponsor: NASA
Launch: 17 May 1966 at 15h15 UTC, from Cape Canaveral's LC-14, by an Atlas-Agena D (Atlas SLV-3 5303 / Agena D 5004).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; Video: Launch (and loss) of Atlas/Agena 9 (CBS) ; TRW Space Log ;
.
Transit 13 / Transit O-9 / NNS O-9
Spacecraft: 
Numbers: 1966 payload #58 ; 1966-041A ; 717th spacecraft.
Type: Navigation
Sponsor: U.S. Navy
Launch: 19 May 1966 at 2h27 UTC, from Vandenberg Air Force Base's PALC-D, by a Scout A (S146C).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
FOBS test
Spacecraft:  OGCh
Numbers: 1966 payload #59 ; 1966 n/a ; 718th spacecraft.
Type: Fractional bombardment system
Sponsor: Soviet Union's Defense ministry
Launch: 20 May 1966, from Baykonur Cosmodrome's LC-69, by a R-36-0.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Discoverer 104 / CORONA 1033 / KH-4A
Spacecraft:  OPS 1778
Numbers: 1966 payload #60 ; 1966-042A ; 719th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 24 May 1966 at 2h00 UTC, from Vandenberg Air Force Base's PALC-1-1, by a Thor-Agena D (Thor 2C 469 / Agena D SS-01B 1630).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
.
Kosmos 119
Spacecraft:  DS-U2-I No. 1
Numbers: 1966 payload #61 ; 1966-043A ; 720th spacecraft.
Type: Military technologies
Sponsor: Soviet Union's Defense ministry
Launch: 24 May 1966 at 5h31 UTC, from Kapustin Yar Cosmodrome's LC-86/1, by a Kosmos B-1 (11K63).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Explorer 32 / AE-B
Spacecraft: Atmosphere Explorer-B
Numbers: 1966 payload #62 ; 1966-044A ; 721st spacecraft.
Type: Earth upper atmosphere studies
Sponsor: NASA
Launch: 25 May 1966 at 14h00 UTC, from Cape Canaveral's LC-17B, by a Delta DSV-3C1 (Thor Delta C1 436 / Delta 38).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Surveyor 1
Spacecraft:  Surveyor SC-1
Numbers: 1966 payload #63 ; 1966-045A ; 722nd spacecraft.
Type: Lunar probe
Sponsor: NASA
Launch: 30 May 1966 at 14h41 UTC, from Cape Canaveral's LC-36A, by an Atlas-Centaur (Atlas LV-3C AC-10 / Centaur D 290D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
ATDA / TDA 4
Spacecraft: 
Numbers: 1966 payload #64 ; 1966-046A ; 723rd spacecraft.
Type: Piloted spacecraft rendezvous target
Sponsor: NASA
Launch: 1st June 1966 at 15h00 UTC, from Cape Canaveral LC-14, by an Atlas (SLV-3).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Gemini 9  / Gemini IX-A
Spacecraft:  Gemini SC9
Numbers: 1966 payload #65 ; 1966-047A ; 724th spacecraft.
Type: Piloted spacecraft
Sponsor: NASA
Launch: 3 June 1966 at 13h39 UTC, from Cape Canaveral's LC-19, by a Titan 2 (GT-9).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Cernan : a human-tethered "spacecraft"
On [] 1966, astronaut Eugene Cernan was suppose to became a truly human satellite when, outside his Gemini spacecraft, he was suppose to used the [MMU] "flying chair" to fly autonomously around his capsuule. But the experiment was cancelled following the impossibility for Cernan to sit securly in the chair.. 
.
Impove Samos 29 / KH-7 29
Spacecraft:  OPS 1577 / AFP-206 [F29]
Numbers: 1966 payload #66 ; 1966-048A ; 725th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 3 June 1966 at 19h26 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 143 km x 288 km x 87.0° 
Decayed: 9 June 1966 (6.2 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
Agena Pickaback
Spacecraft:  OPS 1856 / [AAS 6]
Numbers: 1966 payload #67 ; 1966-048B ; 726th spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 3 June 1966 at 19h26 UTC, from Vandenberg Air Force Base's PALC-2-4, by an Atlas Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OGO 3 / EOGO 3
Spacecraft: OGO B / Orbiting Geophysical Observatory 3
Numbers: 1966 payload #68 ; 1966-049A ; 727th spacecraft.
Type: Geophysics
Sponsor: NASA
Launch: 9 June 1966 at 2h48 UTC, from Cape Canaveral's LC-12, by an Atlas-Agena B (Atlas 5601 / Agena B 6502 (AA16)).
Orbit:
Decayed: 15 September 1981
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log; Spacewarn No. 550 ;
.
Kosmos 120
Spacecraft:  Zenit-2 No. 41
Numbers: 1966 payload #69 ; 1966-050A ; 728th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 8 June 1966 at 11h02 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Improve Midas 1 / Midas 10
Spacecraft:  FTV 1351 / Midas RTS 1
Numbers: 1966 payload #70 ; 1966-051A ; 729th spacecraft.
Type: Missile early warning
Sponsor: U.S. Air Force
Launch: 9 June 1966 at 20h10 UTC, from Vandenberg Air Force Base's PALC-1-2, by an Atlas-Agena D (Atlas 7201 / Agena D 1351).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Secor 6 / EGRS 6
Spacecraft:  Sequential Collation of Range
Numbers: 1966 payload #71 ; 1966-051B ; 730th spacecraft.
Type: Geodesy
Sponsor: U.S. Air Force
Launch: 9 June 1966 at 20h10 UTC, from Vandenberg Air Force Base's PALC-1-2, by an Atlas-Agena D (Atlas 7201 / Agena D 1351).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
ERS 16 / ORS 2
Spacecraft: 
Numbers: 1966 payload #72 ; 1966-051C ; 731st spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 9 June 1966 at 20h10 UTC, from Vandenberg Air Force Base's PALC-1-2, by an Atlas-Agena D (Atlas 7201 / Agena D 1351).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 3-4
Spacecraft: 
Numbers: 1966 payload #73 ; 1966-052A ; 732nd spacecraft.
Type: Radiation monitoring
Sponsor: U.S. Air Force
Launch: 10 June 1966 at 4h15 UTC, from Wallops Island's LA-3, by a Scout B (S147C).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
GGTS 1
Spacecraft:  Gravity Gradient Test Satatellite 1
Numbers: 1966 payload #74 ; 1966-053A ; 733rd spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 16 June 1966 at 14h00 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-11(Transtage-11)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
IDSCP 1-1
Spacecraft:  OPS 9311 ; Initial Defense Communications Satellite Program 
Numbers: 1966 payload #75 ; 1966-053B ; 734th spacecraft.
Type: Communications
Sponsor: U.S. Air Force

Source: A. Parsch
Launch: 16 June 1966 at 14h00 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-11 (Transtage-11)).
Orbit:
Decayed:
Mission: Retired in the 1970s?
Notes:  It was reported on 18 July 1964 that DOD had decided to invest $200 million in a military communications satellite system. The first launching was said to be [255] scheduled for late 1965 or 1966. Plans called for seven or eight satellites to be placed in orbit by a single Titan III booster. The satellites, perhaps as many as 24 simultaneously, were to be placed in orbit at around 9,500 km altitude.
     On 8 August 1964, President Lyndon Johnson announced: “The Air Force will proceed immediately with the program to orbit 24 satellites for an interim, independent defense satellite communications system. This system will provide reliable, worldwide circuits, highly resistant to jamming and physical attack, for carrying essential military communications in times of crisis.”
     DOD statement on military communications satellite system described the satellites as an “interim system” designed to provide “extremely reliable duplex high-quality voice circuits.” The 24-satellite network would be placed into near-equatorial orbits, eight at a time, by three Titan III-C launch vehicles, beginning with the first launching of eight satellites in early 1966. This interim system would be replaced after about three years by an “advanced” military comsat system.
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ; Astronautics and Aeronautics 1964, p. 124, 279-80 ;
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IDSCP 1-2
Spacecraft:  OPS 9312 ; Initial Defense Communications Satellite Program 
Numbers: 1966 payload #76 ; 1966-053C ; 735th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 16 June 1966 at 14h00 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-11 (Transtage-11)).
Orbit:
Decayed:
Mission: Retired in the 1970s?
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDSCP 1-3
Spacecraft:  OPS 9313 ; Initial Defense Communications Satellite Program 
Numbers: 1966 payload #77 ; 1966-053D ; 736th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 16 June 1966 at 14h00 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-11(Transtage-11)).
Orbit:
Decayed:
Mission: Retired in the 1970s?
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDSCP 1-4
Spacecraft:  OPS 9314 ; Initial Defense Communications Satellite Program 
Numbers: 1966 payload #78 ; 1966-053E ; 737th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 16 June 1966 at 14h00 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-11(Transtage-11)).
Orbit:
Decayed:
Mission: Retired in the 1970s?
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDSCP 1-5
Spacecraft:  OPS 9315 ; Initial Defense Communications Satellite Program 
Numbers: 1966 payload #79 ; 1966-053F ; 738th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 16 June 1966 at 14h00 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-11(Transtage-11)).
Orbit:
Decayed:
Mission: Retired in the 1970s?
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDSCP 1-6
Spacecraft:  OPS 9316 ; Initial Defense Communications Satellite Program 
Numbers: 1966 payload #80 ; 1966-053G ; 739th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 16 June 1966 at 14h00 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-11(Transtage-11)).
Orbit:
Decayed:
Mission: Retired in the 1970s?
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDSCP 1-7
Spacecraft:  OPS 9317 ; Initial Defense Communications Satellite Program 
Numbers: 1966 payload #81 ; 1966-053H ; 740th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 16 June 1966 at 14h00 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-11(Transtage-11)).
Orbit:
Decayed:
Mission: Retired in the 1970s?
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
Kosmos 121
Spacecraft:  Zenit-4
Numbers: 1966 payload #82 ; 1966-054A ; 741st spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 17 June 1966 at 11h02 UTC, from Plesetsk Cosmodrome's LC-41/1, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Discoverer 105 / CORONA 1034 / KH-4A
Spacecraft:  OPS 1599
Numbers: 1966 payload #83 ; 1966-055A ; 742nd spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 21 June 1966 at 21h31 UTC, from Vandenberg Air Force Base's LC-75-3-5, by a Thor-Agena D (Thor 2C 466 / Agena D SS-01B 1626).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
.
Pageos A
Spacecraft:  PAGEOS-A ; Passive Geodetic Earth Orbiting Satellite
Numbers: 1966 payload #84 ; 1966-056A ; 743rd spacecraft.
Type: Geoteodesy
Sponsor: NASA
Launch: 24 June 1966 at 0h12 UTC, from Vandenberg Air Force Base's LC-75-1-1, by a Thor-Agena D (Thor 2C 473 / Agena D SS-01B 6311 (TA7)).
Orbit:
Decayed:
Mission:
Notes: On 27 January 1965, NASA Langley Research Center requested G. T. Schjeldahl Co. to submit a bid for construction of six inflatable 30-m, 60-kg spherical satellites to be used in the national geodetic satellite program. They would be nearly identical to Echo I and would be named Pageos (Passive Geodetic Satellite). Pageos would be launched in 1966 into a near-polar orbit at an altitude of about 3,700 km. Ground camera stations would simultaneously photograph it against a star background to gather precise data for locating any point on Earth. The other two types of spacecraft to be used in the geodetic satellite program would be the 160 kg Geos and the 55-kg Beacon Explorer-B. 
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ;; Astronautics and Aeronautics 1965, p. 35 ; TRW Space Log ;
.
Kosmos 122
Spacecraft:  Meteor
Numbers: 1966 payload #85 ; 1966-057A ; 744th spacecraft.
Type: Meteorology
Sponsor: Soviet Union
Launch: 25 June 1966 at 10h19 UTC, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Explorer 33 / AIMP D
Spacecraft:  Anchored IMP 1
Numbers: 1966 payload #86 ; 1966-058A ; 745th spacecraft.
Type: Earth-space studies
Sponsor: NASA
Launch: 1st July 1966 at 16h02 UTC, from Cape Canaveral's LC-17A, by a Delta DSV-3E1 (Thor Delta E1 467 / Delta 39).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Apollo 2 / Apollo AS-203
Spacecraft: 
Numbers: 1966 payload #87 ; 1966-059A ; 746th spacecraft.
Type: Piloted spacecraft test
Sponsor: NASA
Launch: 5 July 1966 at 10h58 UTC, from Cape Canaveral's LC-37B, by a Saturn IB (SA-203).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Proton 3
Spacecraft:  N-4 No. 4
Numbers: 1966 payload #88 ; 1966-060A ; 747th spacecraft.
Type: Earth upper atmosphere studies
Sponsor: Soviet Union
Launch: 6 July 1966 at 12h57 UTC, from Baykonur Cosmodrome's LC-81L, by a D/ Proton (8K82 212, N-4 No. 4).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 123
Spacecraft:  DS-P1-Yu No. 5
Numbers: 1966 payload #89 ; 1966-061A ; 748th spacecraft.
Type: Military technologies
Sponsor: Soviet Union's Defense ministry
Launch: 8 July 1966 at 5h31 UTC, from Kapustin Yar's LC-86/1, by a Kosmos B-1 (63S1).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Improve Samos 30 / KH-7 30
Spacecraft:  OPS 1850 / AFP-206 [F30]
Numbers: 1966 payload #90 ; 1966-062A ; 749th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 12 July 1966 at 17h57 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 137 km x 326 km x 95.5° 
Decayed: 20 July 1966 (7 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
OV 1-8
Spacecraft: 
Numbers: 1966 payload #91 ; 1966-063A ; 750th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 14 July 1966 at 2h10 UTC, from Vandenberg Air Force Base's ABRESB3, by an Atlas D.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 1-7
Spacecraft: 
Numbers: 1966 payload #92 ; 1966-063B ; 751st spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 14 July 1966 at 2h10 UTC, from Vandenberg Air Force Base's ABRESB3, by an Atlas D.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 1-subsat
Spacecraft: 
Numbers: 1966 payload #93 ; 1966-063C ; 752nd spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 14 July 1966 at 2h10 UTC, from Vandenberg Air Force Base's ABRESB3, by an Atlas D.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 124
Spacecraft:  Zenit-2 No. 42
Numbers: 1966 payload #94 ; 1966-064A ; 753rd spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 14 July 1966 at 10h33 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
GATV 10 / TDA 1A
Spacecraft:  Gemini Agena Target Vehicle 10
Numbers: 1966 payload #95 ; 1966-065A ; 754th spacecraft.
Type: Piloted spacecraft rendez-vous target
Sponsor: NASA
Launch: 18 July 1966 at 20h39 UTC, from Cape Canaveral's LC-14, by an Atlas-Agena D (Atlas 5305 / Agena D 5005).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Gemini X
Spacecraft:  Gemini spacecraft 10
Numbers: 1966 payload #96 ; 1966-066A ; 755th spacecraft.
Type: Piloted spacecraft
Sponsor: NASA
Launch: 18 July 1966 at 22h20 UTC, from Cape Canaveral's LC-19, by a Titan 2 (GT-10).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 125
Spacecraft:  US-A
Numbers: 1966 payload #97 ; 1966-067A ; 756th spacecraft.
Type: Ocean surveillance ("RORSAT")
Sponsor: Soviet Union's Defense ministry
Launch: 20 July 1966 at 9h07 UTC, from Baykonur Cosmodrome's LC-31, by an A-1m/"Vostok" (11A510).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 126
Spacecraft: Zenit-4
Numbers: 1966 payload #98 ; 1966-068A ; 757th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 28 July 1966 at 10h48 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Titan Samos 1 / KH-8 1 GAMBIT
Spacecraft:  OPS 3014
Numbers: 1966 payload #99 ; 1966-069A ; 758th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 29 July 1966 at 18h43 UTC, from Vandenberg Air Force Bases's SLC-4W, by a Titan 3B (Titan 3B 3B-1 / Agena D 4751).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 3-3
Spacecraft: 
Numbers: 1966 payload #100 ; 1966-070A ; 759th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 4 August 1966 at 10h45 UTC, from Vandenberg Air Force Base's SLC-5, by a Scout B (S148C).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 127
Spacecraft:  Zenit-4
Numbers: 1966 payload #101 ; 1966-071A ; 760th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 8 August 1966 at 11h16 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Discoverer 106 / CORONA 1036 / KH-4A
Spacecraft:  OPS 1545
Numbers: 1966 payload #102 ; 1966-072A ; 761st spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 9 August 1966 at 20h46 UTC, from Vandenberg Air Force Base's SLC-1W, by a Thor-Agena D (Thor 2L 506 / Agena D SS-01B 1631).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
.
Lunar Orbiter 1
Spacecraft:  Lunar Orbiter A
Numbers: 1966 payload #103 ; 1966-073A; 762nd spacecraft.
Type: Lunar probe
Sponsor: NASA
Launch: 10 August 1966 at 19h26 UTC, from Cape Canaveral's LC-13, by an Atlas-Agena D (Atlas 5801 / Agena D 6630).
Orbit:
Decayed:
Mission:
Notes: On 7 May 1964, NASA signed $80-million incentive contract with Boeing Co. to build five Lunar Orbiter spacecraft. Beginning in 1966, Atlas-Agena boosters would launch Lunar Orbiters from Cape Kennedy on missions to take close-range photographs of moon’s surface for scientific study and to help select landing sites for Project Apollo.
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Astronautics and Aeronautics 1964, p. 170 ;
.
Improve Samos 31 / KH-7 31
Spacecraft:  OPS 1832 / AFP-206 [F31]
Numbers: 1966 payload #104 ; 1966-074A ; 763rd spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 16 August 1966 at 18h28 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 146 km x 358 km x 93.2° 
Decayed: 24 August 1966 (7.5 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
Hitchhiker 12
Spacecraft:  OPS 6810 / [EHH B5]
Numbers: 1966 payload #105 ; 1966-074B ; 764th spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 16 August 1966 at 18h28 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Pioneer 7
Spacecraft:  Pioneer B
Numbers: 1966 payload #106 ; 1966-075A ; 765th spacecraft.
Type: Space environment studies
Sponsor: NASA
Launch: 17 August 1966 at 15h20 UTC, from Cape Canaveral's LC-17A, by a Delta DSV-3E1 (Thor Delta E1 462 / Delta 40).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Transit 14 / NNS O-10
Spacecraft:  Transit O-10
Numbers: 1966 payload #107 ; 1966-076A ; 766th spacecraft.
Type: Navigation
Sponsor: U.S. Navy
Launch: 18 August 1966 at 2h25 UTC, from Vandenberg Air Force Base's SLC-5, by a Scout A (S149C).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Midas 11 / Midas RTS 2
Spacecraft:  FTV 1352 / Missile Defense Alarm System 11
Numbers: 1966 payload #108 ; 1966-077A ; 767th spacecraft.
Type: Missile early warning
Sponsor: U.S. Air Force

Source: A. Parsch
Launch: 19 August 1966 at 19h26 UTC, from Vandenberg Air Force Base's SLC-3E, by an Atlas-Agena D (Atlas 7202 / Agena D s/n 1352).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Secor 7 / EGRS 7
Spacecraft: 
Numbers: 1966 payload #109 ; 1966-077B ; 768th spacecraft.
Type: Geodesy
Sponsor: U.S. Air Force
Launch: 19 August 1966 at 19h26 UTC, from Vandenberg Air Force Base's SLC-3E, by an Atlas-Agena D (Atlas 7202 / Agena D s/n 1352).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
ERS 15 / ORS 1
Spacecraft: 
Numbers: 1966 payload #110 ; 1966-077C ; 769th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 19 August 1966 at 19h26 UTC, from Vandenberg Air Force Base's SLC-3E, by an Atlas-Agena D (Atlas 7202 / Agena D s/n 1352).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Luna 11
Spacecraft:  E-6LF No. 101
Numbers: 1966 payload #111 ; 1966-078A ; 770th spacecraft.
Type: Lunar proble
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 24 August 1966 at 8h03 UTC, from Baykonur Cosmodrome's LC-31?, by an A-2-e/"Molniya" (8K78M N103-43).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
AS-202 / Apollo-Saturn 202
Spacecraft:  Apollo CSM 011
Numbers: 1966 payload #112 ; n/a ; 771st spacecraft.
Type: Piloted spacecraft test
Sponsor: NASA
Launch: 25 August 1966 at 1h15 UTC, from Cape Canaveral'sw LC-34, by a Saturn IB (SA-202).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;

.
IDCSP 8
Spacecraft:  (OPS 9321)
Numbers: 1966 payload #113 ; 1966 8th loss ; 772nd spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 26 August 1966 at 13h59 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-12 (Transtage-12)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDCSP 9
Spacecraft: (OPS 9322)
Numbers: 1966 payload #114 ; 1966 9th loss ; 773rd spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 26 August 1966 at 13h59 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-12 (Transtage-12)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDCSP 10
Spacecraft:  (OPS 9323)
Numbers: 1966 payload #115 ; 1966 10th loss ; 774th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 26 August 1966 at 13h59 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-12 (Transtage-12)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDCSP 11
Spacecraft:  (OPS 9324)
Numbers: 1966 payload #116 ; 1966 11th loss ; 775th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 26 August 1966 at 13h59 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-12 (Transtage-12)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDCSP 12
Spacecraft:  (OPS 9325)
Numbers: 1966 payload #117 ; 1966 12th loss ; 776th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 26 August 1966 at 13h59 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-12 (Transtage-12)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDCSP 13
Spacecraft: (OPS 9326)
Numbers: 1966 payload #118 ; 1966 13th loss ; 777th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 26 August 1966 at 13h59 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-12 (Transtage-12)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDCSP 14
Spacecraft:  (OPS 9327)
Numbers: 1966 payload #119 ; 1966 14th loss ; 778th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 26 August 1966 at 13h59 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-12 (Transtage-12)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
IDCSP 15
Spacecraft:  (OPS 9328)
Numbers: 1966 payload #120 ; 1966 15th loss ; 779th spacecraft.
Type: Communications
Sponsor: U.S. Air Force
Launch: 26 August 1966 at 13h59 UTC, from Cape Canaveral Air Force Base's LC-41, by a Titan 3C (3C-12 (Transtage-12)).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 495 ;
.
Kosmos 128
Spacecraft:  Zenit-4
Numbers: 1966 payload #121 ; 1966-079A ; 780th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 27 August 1966 at 9h50 UTC, from Baykonur Cosmodrome's LC-1?, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
GATV 11 / TDA 6
Spacecraft: Gemini Agena Target Vehicle 11
Numbers: 1966 payload #122 ; 1966-080A ; 781st spacecraft.
Type: Piloted spacecraft rendezvous target
Sponsor: NASA
Launch: 12 September 1966 at 13h05 UTC, from Cape Canaveral Air Force Base's LC-14, by an Atlas-Agena D (Atlas 5306 / Agena D 5006).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Gemini XI
Spacecraft:  Gemini SC11
Numbers: 1966 payload #123 ; 1966-081A ; 782nd spacecraft.
Type: Piloted spacecraft
Sponsor: NASA
Launch: 12 September 1966 at 14h42 UTC, from Cape Canaveral's LC-19, by a Titan 2 (GT-11).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos
Spacecraft:  Zenit-2 No. 40
Numbers: 1966 payload #124 ; 1966 16th loss ; 783rd spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 16 September 1966, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
P-35-16 / DAPP 1416
Spacecraft:  OPS 6026 (FTV-3) / DMSP Block 4A F1
Data Acquisition and Processing Program
Numbers: 1966 payload #125 ; 1966-082A ; 784th spacecraft.
Type: Meteorology
Sponsor: U.S. Air Force
Launch: 16 September 1966 at 4h36 UTC, from Vandenberg Air Force Base's LC4300B6, by a Thor-Burner2 (167).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Improve Samos 32 / KH-7 32
Spacecraft:  OPS 1686 / AFP-206 [F32]
Numbers: 1966 payload #126 ; 1966-083A ; 785th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 16 September 1966 at 17h59 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 148 km x 333 km x 94.0°
Decayed: 23 September 1966 (6 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
Hitchhiker 13
Spacecraft:  OPS 6874 / [EHH B6]
Numbers: 1966 payload #127 ; 1966-083B ; 786th spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 16 September 1966 at 17h59 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
FOBS test
Spacecraft:  OGCh ; Fractional Orbital Bombardment System
Numbers: 1966 payload #128 ; 1966-088A ; 787th spacecraft.
Type: Bombardment via space
Sponsor: Soviet Union Defense ministry
Launch: 17 September 1966 at 22h33, from Baykonur Cosmodrome's LC-162, by a R-36-0.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's 1966-088A ; TRW Space Log ;
.
Surveyor 2
Spacecraft:  Surveyor SC-2
Numbers: 1966 payload #129 ; 1966-084A ; 788th spacecraft.
Type: Lunar probe
Sponsor: NASA
Launch: 20 September 1966 at 12h32 UTC, from Cape Canaveral's LC-36A, by an Atlas-Centaur (Atlas LV-3C AC-7 / Centaur D 194D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Discoverer 107 / CORONA 1035 / KH-4A
Spacecraft:  OPS 1703
Numbers: 1966 payload #130 ; 1966-085A ; 789th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 20 September 1966 at 21h14 UTC, from Vandenberg Air Force Base's SLC-3W, by a Thor-Agena D (Thor 2C 477 / Agena D SS-01B 1628).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
.
"Osumi #1"
Spacecraft: 
Numbers: 1966 payload #131 ; 1966 17th loss ; 790th spacecraft.
Type: Technology
Sponsor: Japan
Launch: 26 September 1966 at 2h58 UTC, from Kagoshima Space Center's L, by a L-4S (Lambda 4S L-4S-1).
Orbit:
Decayed:
Mission:
Notes: On 6 November 1960, Japanese Space Development Council recommended initiation of basic studies for launching an Earth satellite.
     On 18 January 1965, the New York Times reported that Japan expected to orbit a satellite within the next three years. Although Japan’s progress in the missile field had been slowed by the limited annual budget allocations of the Defense Forces, scientific advances, particularly in the field of electronics, plus stimulus to Japanese industry provided by the Korean War, had brought marked advances in rocketry and missiles.
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; Aeronautics and Astronautics, 1915-1960, p. 130 ; Astronautics and Aeronautics 1965, p. 21 ; TRW Space Log ;
.
Titan Samos 2 / KH-8 2 GAMBIT
Spacecraft:  OPS 4096
Numbers: 1966 payload #132 ; 1966-086A ; 791st spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 28 September 1966 at 19h12 UTC, from Vandenberg Air Force Base's SLC-4W, by a Titan 3B (Titan 3B 3B-2 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
ESSA 3
Spacecraft:  ESSA stands for Environmental Science Services Administration.
Numbers: 1966 payload #133 ; 1966-087A ; 792nd spacecraft.
Type: Meteorology
Sponsor: ESSA
Launch: 2 October 1966 at 10h39 UTC, from Vandenberg Air Force Base's SLC-2E, by a Delta DSV-3E (Thor Delta E 463 / Delta 41).
Orbit:
Decayed:
Mission:
Notes: Plans for first operational weather satellite system, to be called TIROS Operational Satellite (TOS) system, were announced on 28 May 1964. NASA had selected RCA’s Astro Electronics Div. for negotiations leading to manufacture of five TIROS operational weather satellites, at cost expected to exceed $9 million. Dept. of Cornmerce/Weather Bureau would finance TOS system, provide overall management, and be responsible for its operation. NASA was responsible for spacecraft procurement, launch, and initial checkout after satellite is in orbit. After system begins in late 1965, two meteorological satellites would be in orbit at all times, photographing cloudcover of the entire earth every day. 
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Astronautics and Aeronautics, 1964, p. 193 ;
.
Midas 12 / Improve Midas 2
Spacecraft:  FTV 1353
Numbers: 1966 payload #134 ; 1966-089A ; 793rd spacecraft.
Type: Missile early warning
Sponsor: U.S. Air Force
Launch: 5 October 1966 at 22h00 UTC, from Vandenberg Air Force Base's SLC-3E, by an Atlas-Agena D (Atlas 7203 / Agena D 1353).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Secor 8 / EGRS 8
Spacecraft: 
Numbers: 1966 payload #135 ; 1966-089B ; 794th spacecraft.
Type: Geodesy
Sponsor: U.S. Air Force
Launch: 5 October 1966 at 22h00 UTC, from Vandenberg Air Force Base's SLC-3E, by an Atlas-Agena D (Atlas 7203 / Agena D 1353).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Improve Samos 33 / KH-7 33
Spacecraft:  OPS 2055 / AFP-206 [F33]
Numbers: 1966 payload #136 ; 1966-090A ; 795th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 12 October 1966 at 19h15 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 155 km x 287 km x 91.0°
Decayed: 20 October 1966 (8.2 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
SGLS 1
Spacecraft:  OPS 5345
Numbers: 1966 payload #137 ; 1966-090B ; 796th spacecraft.
Type:
Sponsor: U.S. Air Force
Launch: 12 October 1966 at 19h15 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 129
Spacecraft:  Zenit-2 No. 33
Numbers: 1966 payload #138 ; 1966-091A ; 797th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 14 October 1966 at 12h13 UTC, from Plesetsk Cosmodrome's LC-41/1, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Molniya 1-4
Spacecraft:  Molniya 1D
Numbers: 1966 payload #139 ; 1966-092A ; 798th spacecraft.
Type: Communications
Sponsor: Soviet Union
Launch: 20 October 1966 at 7h55 UTC, from Baykonur Cosmodrome's LC-1, by an A-2-e/"Molniya" (8K78M N103-40).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 130
Spacecraft:  Zenit-4
Numbers: 1966 payload #140 ; 1966-093A ; 799th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union Defense ministry
Launch: 20 October 1966 at 8h52 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Luna 12
Spacecraft:  E-6LF No. 102
Numbers: 1966 payload #141 ; 1966-094A ; 800th spacecraft.
Type: Lunar probe
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 22 October 1966 at 8h38 UTC, from Baykonur Cosmodrome's LC-31, by an A-2-e/"Molniya" (8K78M N103-44).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Surveyor Model 4 (AC-10)
Spacecraft:  Centaur D AC-9 / Centaur 8D
Numbers: 1966 payload #142 ; 1966-095A ; 801st spacecraft.
Type: Technology
Sponsor: NASA
Launch: 25 October 1966 at 11h12 UTC, from Cape Canaveral's LC-36B, by an Atlas-Centaur (Atlas LV-3C AC-9 / Centaur D s/n 174D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Intelsat 2A
Spacecraft:  Intelsat II F-1
Numbers: 1966 payload #143 ; 1966-096A ; 802nd spacecraft.
Type: Communications
Sponsor: Intelsat
Launch: 26 October 1966 at 23h05 UTC, from Cape Canaveral's LC-17B, by a Delta DSV-3E1 (Thor Delta E1 464 / Delta 42).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 3-2
Spacecraft: 
Numbers: 1966 payload #144 ; 1966-097A ; 803rd spacecraft.
Type: Science & technology
Sponsor: U.S. Air Force
Launch: 28 October 1966 at 11h56 UTC, from Vandenberg Air Force Base's SLC-5, by a Scout B (S150C).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
FOBS test
Spacecraft:  OGCh
Numbers: 1966 payload #145 ; 1966-101A ; 804th spacecraft.
Type: Bombardment via space
Sponsor: Soviet Union's Defense ministry
Launch: 2 November 1966 at 0h43 UTC, from Baykonur Cosmodrome's LC-162, by a R-36-0.
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's 1966-101A ; TRW Space Log ;
.
Improve Samos 34 / KH-7 34
Spacecraft:  OPS 2070 / AFP-206 [F34]
Numbers: 1966 payload #146 ; 1966-098A ; 805th spacecraft.
Type: Reconnaisssance
Sponsor: U.S. National Reconnaissance Office
Launch: 2 November 1966 at 20h23 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 159 km x 305 km x 91.0°
Decayed: 10 November 1966 (7.2 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
Agena Pickaback
Spacecraft:  OPS 5424
Numbers: 1966 payload #147 ; 1966-098B ; 806th spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 2 November 1966 at 20h23 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 4-3
Spacecraft: 
Numbers: 1966 payload #148 ; 1966-099A ; 807th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 3 November 1966 at 13h50 UTC, from Cape Canaveral's LC-40, by a Titan 3C (3C-9).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
MOL/Gemini B
Spacecraft:  Gemini SC2B
Numbers: 1966 payload #149 ; 1966-099 ; 808th spacecraft.
Type: Piloted spacecraft test
Sponsor: U.S. Air Force
Launch: 3 November 1966 at 13h50 UTC, from Cape Canaveral's LC-40, by a Titan 3C (3C-9).
Orbit:
Decayed:
Mission:
Notes: On 19 May 1965, it was announced that the Gemini 2 spacecraft which made a suborbital unmanned flight on 19 January 1965, would be reworked by the McDonnell Aircraft Corp. and delivered to USAF in July 1966 for a preliminary unmanned flight in the USAF Manned Orbiting Laboratory Program. USAF would launch the spacecraft in an unmanned suborbital flight to test the Gemini B heat shield design. The heat shield would have a hatch to allow crew transfer from the Gemini to the Orbital Laboratory.
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; Astronautics and Aeronautics 1965, p. 240 ; TRW Space Log ;
.
OV 4-1R
Spacecraft: 
Numbers: 1966 payload #150 ; 1966-099B ; 809th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 3 November 1966 at 13h50 UTC, from Cape Canaveral's LC-40, by a Titan 3C (3C-9).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 4-6S
Spacecraft:
Numbers: 1966 payload #151 ; 1966-099C ; 810th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 3 November 1966 at 13h50 UTC, from Cape Canaveral's LC-40, by a Titan 3C (3C-9).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 4-1T
Spacecraft: 
Numbers: 1966 payload #152 ; 1966-099D ; 811th spacecraft.
Type: Technology
Sponsor: U.S. Air Force
Launch: 3 November 1966 at 13h50 UTC, from Cape Canaveral's LC-40, by a Titan 3C (3C-9).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Lunar Orbiter 2
Spacecraft:  Lunar Orbiter B
Numbers: 1966 payload #153 ; 1966-100A ; 812th spacecraft.
Type: Lunar probe
Sponsor: NASA
Launch: 6 November 1966 at 23h21 UTC, from Cape Canaveral's LC-13, by an Atlas-Agena D (Atlas 5802 / Agena D 6631).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Discoverer 108 / CORONA 1037 / KH-4A
Spacecraft:  OPS 1866
Numbers: 1966 payload #154 ; 1966-102A ; 813th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 8 November 1966 at 19h53 UTC, from Vandenberg Air Force Base's SLC-1W, by a Thor-Agena D (Thor 2L 507 / Agena D SS-01B 1632).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NRO's Corona : JPL's Corona :
.
GATV 12 / TDA 7
Spacecraft:  Gemini Agena Target Vehicle 12
Numbers: 1966 payload #155 ; 1966-103A ; 814th spacecraft.
Type: Piloted spacecraft rendezvous target
Sponsor: NASA
Launch: 11 November 1966 at 19h08 UTC, from Cape Canaveral's LC-14, by an Atlas-Agena D (Atlas 5307 / Agena D 5001R).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Gemini XII
Spacecraft:  Gemini SC12
Numbers: 1966 payload #156 ; 1966-104A ; 815th spacecraft.
Type: Piloted spacecraft
Sponsor: NASA
Launch: 11 November 1966 at 20h46 UTC, from Cape Canaveral's LC-19, by a Titan 2 (GT-12).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 131
Spacecraft:  Zenit-4
Numbers: 1966 payload #157 ; 1966-105A ; 816th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 12 November 1966 at 9h50 UTC, from Plesetsk Cosmodrome's LC-41/1, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos
Spacecraft:  Strela-2
Numbers: 1966 payload #158 ; 1966 18th loss ; 817th spacecraft.
Type: Communications (store/dump)
Sponsor: Soviet Union's Defense ministry
Launch: 16 November 1966, from Baykonur Cosmodrome's LC41/15, by a Kosmos C-1 (11K65).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 132
Spacecraft:  Zenit-2 No. 46
Numbers: 1966 payload #159 ; 1966-106A ; 818th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 19 November 1966 at 8h09 UTC, from Baykonur Cosmodrome's LC-31, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 133
Spacecraft:  Soyuz 7K-OK No. 2
Numbers: 1966 payload #160 ; 1966-107A ; 819th spacecraft.
Type: Piloted spacecraft test
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 28 November 1966 at 11h00 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/Soyuz (11A511 1).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 134
Spacecraft:  Zenit-4
Numbers: 1966 payload #161 ; 1966-108A ; 820th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 3 December 1966 at 8h09 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/"Voskhod" (11A57).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Improve Samos 35 / KH-7 35
Spacecraft:  OPS 1890 / AFP-206 [F35]
Numbers: 1966 payload #162 ; 1966-109A ; 821st spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 5 December 1966 at 21h09 UTC, from Vandenberg Air Force Base's SLC-4E, by an Atlas-Agena D (Atlas 7102 / Agena D).
Orbit: 137 km x 388 km x 104.6°
Decayed: 14 December 1966 (8.2 days)
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan McDowell's USAF imaging programs' Satellite Summary: KH-7 (Program 206) ;
.
ATS 1
Spacecraft:  ATS B ; Applications Technology Satellite
Numbers: 1966 payload #163 ; 1966-110A ; 822nd spacecraft.
Type: Technology
Sponsor: NASA
Launch: 7 December 1966 at 2h12 UTC, from Cape Canaveral's LC-12, by an Atlas-Agena D (Atlas 5101 / Agena D 6151).
Orbit:
Decayed:
Mission:
Note: The overall objective of the Applications Technology Satellite (ATS) program was to investigate and flight-test technological developments common to a number of satellite applications. Designers of ATS at Hughes Aircraft Company and the Goddard Space Flight Center built on the successful Syncom communications satellite design. Each of six ATS spacecraft carried a variety of communications, meteorology, and scientific experiments, in addition to providing a platform for evaluating three different kinds of spacecraft stabilization systems. ATS 1 was a synchronous-orbit spin-stabilized satellites. 
Notes: On 3 March 1964, NASA announced Hughes Aircraft Co. had been awarded contract to develop and build five Advanced Technological Satellites (ATS) based on Advanced Syncom design study. The 300-kg satellites would be used to test several spacecraft techniques, particularly spacecraft stabilization and orientation in higher altitudes.
     On 26 June 1964, NASA announced it had requested proposals from scientists for experiments on Advanced Technological Satellites to be launched from Cape Kennedy in 1966-68. Primary mission of ATS would be to evaluate advanced oommunication techniques, meteorological components, and gravity gradient stabilization systems, but additional space for scientific experiments was available.
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; NASA SP-4012 ; Astronautical Events of 1964, p. 24, 27, 30, 33, 90 ; Astronautics and Aeronautics, 1964, p. 223 ;
.
OV 1-9
Spacecraft: 
Numbers: 1966 payload #164 ; 1966-111A ; 823rd spacecraft.
Type: Science & technology
Sponsor: U.S. Air Force
Launch: 11 December 1966 at 21h09 UTC, from Vandenberg Air Force Base's ABRESB3, by an Atlas D (89D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
OV 1-10
Spacecraft:
Numbers: 1966 payload #165 ; 1966-111B ; 824th spacecraft.
Type: Science & technology
Sponsor: U.S. Air Force
Launch: 11 December 1966 at 21h09 UTC, from Vandenberg Air Force Base's ABRESB3, by an Atlas D (89D).
Orbit:
Decayed: 30 November 2002
Mission:
Source: Jonathan McDowell's Master List ; Spacewarn No. 589 ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 135
Spacecraft:  DS-U2-MP No. 1
Numbers: 1966 payload #166 ; 1966-112A ; 825th spacecraft.
Type: Earth/space studies (civil)
Sponsor: Soviet Union
Launch: 12 December 1966 at 20h38 UTC, from Kapustin Yar Cosmodrome's LC-86/1, by a Kosmos B-1 (11K63).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos
Spacecraft:  Soyuz No. 1
Numbers: 1966 payload #167 ; 1966 19th loss ; 826th spacecraft.
Type: Piloted spacecraft test
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 14 December 1966 at 11h00 UTC, from Baykonur Cosmodrome's LC-31, by an A-2/Soyuz (11A511 U15000-01).
Orbit:
Decayed:
Mission:
Notes: The 11F615 Soyuz, developed as a lunar spaceship in the 1960s and used as a space station crew transport since the 1970s, had a propulsion module (priborno-agregatniy ostek, PAO), a descent vehicle (spuskaemiy apparat, SA), and a habitation module (bitovoy otsek, BO).
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ; Jonathan Space Report No. 420 ;
.
Titan Samos 3 / KH-8 3 GAMBIT
Spacecraft:  OPS 8968
Numbers: 1966 payload #168 ; 1966-113A ; 827th spacecraft.
Type: Reconnaissance
Sponsor: U.S. National Reconnaissance Office
Launch: 14 December 1966 at 18h14 UTC, from Vandenberg Air Force Base's SLC-4W, by a Titan 3B (Titan 3B 3B-3 / Agena D).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Biosatellite 1
Spacecraft:  Biosatellite A
Numbers: 1966 payload #169 ; 1966-114A ; 828th spacecraft.
Type: Biology
Sponsor: NASA
Launch: 14 December 1966 at 19h20 UTC, from Cape Canaveral's LC-17A, by a Delta DSV-3G (Thor Delta G 471 / Delta 43).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 136
Spacecraft:  Zenit-2 No. 47
Numbers: 1966 payload #170 ; 1966-115A ; 829th spacecraft.
Type: Reconnaissance
Sponsor: Soviet Union's Defense ministry
Launch: 19 December 1966 at 12h00 UTC, from Plesetsk Cosmodrome's LC-41/1, by an A-1/"Vostok" (8A92).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
"Osumi #2"
Spacecraft: 
Numbers: 1966 payload #171 ; 1966 20th loss ; 830th spacecraft.
Type: Technology
Sponsor: Japan
Launch: 20 December 1966 at 2h20 UTC, from Kagoshima Space Center's L, by a L-4S (Lambda 4S L-4S-2).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Luna 13
Spacecraft:  E-6M No. 205 SA
Numbers: 1966 payload #172 ; 1966-116A ; 831st spacecraft.
Type: Lunar probe
Sponsor: Soviet Union (Korolev's Design Bureau)
Launch: 21 December 1966 at 10h17 UTC, from Baykonur Cosmodrome's LC-1, by an A-2-e/"Molniya" (8K78M N103-45).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Kosmos 137
Spacecraft:  DS-U2-D No. 1
Numbers: 1966 payload #173 ; 1966-117A ; 832nd spacecraft.
Type: Earth/space studies (civil)
Sponsor: Soviet Union
Launch: 21 December 1966 at 13h12 UTC, from Kapustin Yar Cosmodrome's LC-86/1, by a Kosmos B-1 (63S1).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;
.
Ferret 10
Spacecraft: OPS 1584
Numbers: 1966 payload #174 ; 1966-118A ; 833rd spacecraft.
Type: Electronic intelligence
Sponsor: U.S. Air Force
Launch: 29 December 1966 at 12h00 UTC, from Vandenberg Air Force Base's SLC-2W, by a Thor-Agena D (Thor 2C 459 / Agena D SS-01B 2731).
Orbit:
Decayed:
Mission:
Source: Jonathan McDowell's Master List ; Mark Wade’s Encyclopedia Astronautica ; National Space Science Data Center's Master Catalog ; TRW Space Log ;

..
Table – Summary of 1966 Launches
No. .. Soviet
Success		  T  Soviet 
failures*		 No.  .. American 
success		  T  American 
failures
1) 1)
2) 2)
3) 3)
4) 4)
5) 5) .
6) 6)
7) 7)
8) 8)
9) . 9)
10) 10)
11) 11)
12) 12)
13) 13)
14) 14)
15) 15)
16) 16)
17) 17)
18) 18)
19) 19)
20) 20)
21) 21)
22) 22)
23) 23)
24) 24)
25) 25)
26) 26)
27) 27) .
28) 28)
29) 29)
30) 30)
31) 31)
32) 32)
33) 33)
34) 34)
35) 35)
36) 36)
37) 37)
38) 38)
39) 39)
40) 40)
41) 41)
42) 42)
43) 43)
) 44)
) 45)
) 46)
) 47)
) 48)
) 49)
50) 50)
51)
52)
53)
54)
55)
56)
57)
58)
59)
60)
61)
62)
63)
64)
65)
66)
67)
68)
69)
70)
71)
72)
73)
74)
75)
76)
77)
78)
79)
80)
81)
82)
83)
84)
85)
Total  Soviet 
launch success		  Soviet 
launch failures*		  American 
launch success		  American launch 
failures
.
 % launch success ( in )
( Civilian,  Military)		  % launch success ( in )
( Civilian,  Military)
.

 
© Claude Lafleur, 2004-10 Mes sites web: claudelafleur.qc.ca