Soviet Space ProgramSoyuz U31/6, Baikonur Cosmodrome, Republic of Kazakhstan
Zenit-4MK 70
Launched
November 11, 1976
Summary
Zenit-4MK 70 launched on a Soviet Space Program Soyuz U from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on November 11, 1976. It was Soviet Space Program's 1,064th launch, 85th this year and humanity's 1,897th orbital launch attempt. It was the 43rd Soyuz U flight and the 20th this year. The payload was bound for low Earth orbit (LEO). Kosmos-866, one of 7 catalogued objects, reached a 186 × 293 km orbit inclined 65.0°. 7 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Soyuz U · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 43rd Soyuz U flight · 20th this yearSoviet Space Program's 1,064th launch85th this yearhumanity's 1,897th orbital launch attempt114th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-866 · NORAD 9532 · 1976-110 · Space-Track · tracking 1 of 7 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1976-110A
- Epoch
- 1976-11-11 21:01:13 UTC
- Mean motion
- 16.15259361 rev/day
- Eccentricity
- 0.0081265
- Inclination
- 64.99°
- Ascending node
- 246.404°
- Arg. of perigee
- 50.2587°
- Mean anomaly
- 310.5662°
- Element set
- 999
- Rev at epoch
- 7
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
7 catalogued: 1 payload, 1 rocket stage, 5 components; none still in orbit
- Kosmos-866 · NORAD 9532 · landed November 23, 1976
Soyuz-U 26-673 Blok-I · re-entered November 14, 1976
Data from J. McDowell, planet4589.org
About this launch
High resolution optical reconnaissance satellite of the Vostok-based Zenit family.
Pad

31/6, Baikonur Cosmodrome, Republic of Kazakhstan
181st launch from 31/6, 12th this year · 471st from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
32 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Zenit-4MK 70 launch?
Zenit-4MK 70 launched on November 11, 1976. The time is known to the hour, not the minute.
Where can I watch Zenit-4MK 70?
No webcast is on record for this launch.
What rocket launched Zenit-4MK 70?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Zenit-4MK 70 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Zenit-4MK 70 reach?
Kosmos-866, one of 7 catalogued objects, reached a 186 × 293 km orbit inclined 65.0°.
How many satellites did Zenit-4MK 70 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] Soyuz U - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fsoyuz2520u_image_20190222031023.jpeg&w=1600)