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1975 In Spaceflight

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Title: 1975 In Spaceflight  
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Subject: Spaceflight/On This Day/Index, Kosmos 782, 1976 in spaceflight, 1975 in spaceflight, Spaceflight/On This Day/24 July
Collection: 1975 in Spaceflight, Years in Spaceflight
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1975 In Spaceflight

1975in spaceflight
Artist's impression of the ASTP docking
Orbital launches
First 10 January
Last 27 December
Total 132
Catalogued 125
National firsts
Satellite  India
Maiden flights Atlas SLV-3D Centaur-D1AR
Delta 3000
Long March 2C
Scout F-1
Titan III(34)B
Retirements Atlas SLV-3D Centaur-D1A
Delta 1000
Saturn IB
Scout F-1
Manned flights
Orbital 4
Suborbital 1
Total travellers 9

In 1975 several notable events happened in spaceflight such as the launch to Mars of the Viking orbiter/landers missions, the joint Apollo–Soyuz Test Project, and the Venera 9 Venus mission.

  • Viking 1 was launched on 20 August 1975 and Viking 2 was launched 9 September 1975. This orbiter/lander mission was to photograph Mars in detail and to find water and life on the surface.
  • The Apollo-Soyuz saw an end to the space race with the USA and USSR. The mission was launched between 15 July 1975 and 17 July 1975.
  • The Venera 9 mission was launched 8 June 1975 was another successful orbiter/lander mission.


  • Launches 1
  • Deep Space Rendezvous 2
  • References 3
    • Footnotes 3.1


Soyuz 17, Decay:19 February" Soyuz 7K-T #39, Decay:NA" GEOS-3, Decay:NA" Aryabhata, Decay:11 February 1992" Soyuz 18, Decay:26 July" Soyuz 19, Decay:21 July" Apollo, Decay:24 July" DM-2, Decay:2 August" Viking 1Orbiter, Decay:NA" Viking 1 Lander, Decay:20 July 1976" Viking 2Orbiter, Decay:NA" Viking 2 Lander, Decay:3 September 1976"
Date and time (UTC) Rocket Launch site LSP
Payload Operator Orbit Function Decay (UTC) Outcome
10 January
Soyuz Baikonur Site 1/5
Soyuz 17 Low Earth (Salyut 4) Salyut expedition 19 February
Manned flight with two cosmonauts, first mission to Salyut 4
5 April
Soyuz Baikonur Site 1/5
Soyuz 7K-T #39 Intended: Low Earth (Salyut 4) Salyut expedition 11:26 Launch failure
Manned flight with two cosmonauts, first and second core stages failed to separate, flight aborted and crew returned on suborbital trajectory
9 April
Delta 1410 Vandenberg SLC-2W NASA
GEOS-3 NASA Low Earth Geodesy In orbit Successful
19 April Kosmos-3M Kapustin Yar Soviet Interkosmos programme
Aryabhata ISRO Low Earth X-ray astronomy, aeronomics, and solar physics studies 11 February 1992 Partially successful (failed 4-5 days after launch)
First indian satellite
24 May
Soyuz Baikonur Site 1/5
Soyuz 18 Low Earth (Salyut 4) Salyut expedition 26 July
Manned flight with two cosmonauts, final mission to Salyut 4
15 July
Soyuz-U Baikonur Site 1/5
Soyuz 19 Low Earth (Apollo) International docking 21 July
Manned flight with two cosmonauts, Soviet contribution to the Apollo Soyuz Test Project
15 July
Saturn IB Kennedy LC-39B NASA
Apollo NASA Low Earth (Soyuz 19) International docking 24 July
DM-2 NASA Low Earth (Apollo) Docking adaptor 2 August Successful
Manned flight with three astronauts, American contribution to the Apollo Soyuz Test Project, final flight of the Apollo programme and the Saturn rocket
20 August
Titan IIIE Cape Canaveral LC-41
Viking 1 Orbiter NASA Areocentric Mars orbiter In orbit Successful
Viking 1 Lander NASA Areocentric Mars lander 20 July 1976
Lander landed in Chryse Planitia, becoming the first US spacecraft to land on Mars. It operated until 11 November 1982 when communications were lost due to an erroneous command being sent to the spacecraft. Orbiter was deactivated on 17 August 1980.
9 September
Titan IIIE Cape Canaveral LC-41
Viking 2 Orbiter NASA Areocentric Mars orbiter In orbit Successful
Viking 2 Lander NASA Areocentric Mars lander 3 September 1976
Lander landed in Utopia Planitia and operated until its batteries failed on 11 April 1980. Orbiter was deactivated on 25 July 1978.

Deep Space Rendezvous

Date Spacecraft Event Remarks
16 March Mariner 10 3rd flyby of Mercury Closest approach: 327 kilometres (203 mi)
20 October Venera 9 Cytherocentric orbit insertion
22 October Venera 9 lander Venerian landing Landed at 05:13 UTC
23 October Venera 10 Cytherocentric orbit insertion
25 October Venera 10 lander Venerian landing Landed at 05:17 UTC


  • Kyle, Ed. "Space Launch Report". 
  • Wade, Mark. "Encyclopedia Astronautica". 
  • Krebs, Gunter. "Chronology of Space Launches". Gunter's Space Page. 
  • "Space Information Center". JAXA. 
  • McDowell, Jonathan. "Jonathan's Space Report". Jonathan's Space Page. 
  • "Mission Set Database". NASA GSFC. 
  • "". 
  • "Launch Logs". Orbital Report News Agency. 
  • "Space Calendar". NASA JPL. 
  • "Southwest Space Archive". 
  • "Launch Forecast". 
  • "Spaceflight Now". 
  • Pietrobon, Steven. "Steven Pietrobon's Space Archive". 
  • "U.S. Space Objects Registry". 
  • "Хроника освоения космоса ('Chronicle of space exploration')" (in Russian). 
Generic references:


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