Soviet Space ProgramProton / UR-500 K/D81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
Mars-2d
Launched
May 10, 1971
Summary
Mars-2d launched on a Soviet Space Program Proton / UR-500 K/D from 81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan on May 10, 1971. The mission failed. It was Soviet Space Program's 570th launch, 29th this year and humanity's 1,218th orbital launch attempt. It was the 25th Proton / UR-500 K/D flight and the 1st this year. The payload was bound for Mars Orbit (Mars). One object from this launch is catalogued.
- Watch
- No webcast on record.
- Vehicle
- Proton / UR-500 K/D · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Robotic Exploration · Mars Orbit (Mars)
- Milestone
- 25th Proton / UR-500 K/D flight · 1st this yearSoviet Space Program's 570th launch29th this yearhumanity's 1,218th orbital launch attempt47th orbital launch attempt this year
Flight preview
Catalogued objects
1 catalogued: 1 payload; none still in orbit
- Kosmos-419 · NORAD 5221 · re-entered May 12, 1971
Data from J. McDowell, planet4589.org
About this launch
Mars orbiter and lander
Pad

81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan
21st launch from 81/23 (81L), 1st this year · 323rd from Baikonur Cosmodrome, Republic of Kazakhstan
104 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
158 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Mars-2d launch?
Mars-2d launched on May 10, 1971. The time is known to the hour, not the minute.
Where can I watch Mars-2d?
No webcast is on record for this launch.
What rocket launched Mars-2d?
Proton / UR-500 K/D, flown by Soviet Space Program. Proton / UR-500 K/D spec sheet
Where did Mars-2d launch from?
81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit was Mars-2d going to?
Mars Orbit (Mars), a robotic exploration mission.
How many satellites did Mars-2d launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] Proton - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fproton_image_20231231095535.jpg&w=1600)