Soviet Space ProgramSoyuz U43/3 (43L), Plesetsk Cosmodrome, Russian Federation
Zenit-6U 11
Launched
September 28, 1979
Summary
Zenit-6U 11 launched on a Soviet Space Program Soyuz U from 43/3 (43L), Plesetsk Cosmodrome, Russian Federation on September 28, 1979. It was Soviet Space Program's 1,345th launch, 72nd this year and humanity's 2,261st orbital launch attempt. It was the 171st Soyuz U flight and the 40th this year. The payload was bound for low Earth orbit (LEO). Kosmos-1138, one of 6 catalogued objects, reached a 205 × 379 km orbit inclined 72.9°. 6 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
- 171st Soyuz U flight · 40th this yearSoviet Space Program's 1,345th launch72nd this yearhumanity's 2,261st orbital launch attempt88th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1138 · NORAD 11548 · 1979-085 · Space-Track · tracking 1 of 6 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1979-085A
- Epoch
- 1979-09-28 13:38:20 UTC
- Mean motion
- 15.96239948 rev/day
- Eccentricity
- 0.0129887
- Inclination
- 72.8623°
- Ascending node
- 196.3123°
- Arg. of perigee
- 83.103°
- Mean anomaly
- 278.4956°
- Element set
- 999
- Rev at epoch
- 1
- 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
6 catalogued: 1 payload, 1 rocket stage, 4 components; none still in orbit
- Kosmos-1138 · NORAD 11548 · landed October 12, 1979
Soyuz-U 25-418 Blok-I · re-entered October 5, 1979
Data from J. McDowell, planet4589.org
About this launch
Optical film-return reconnaissance satellite
Pad

43/3 (43L), Plesetsk Cosmodrome, Russian Federation
102nd launch from 43/3 (43L), 13th this year · 709th from Plesetsk Cosmodrome, Russian Federation
234 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
44 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did Zenit-6U 11 launch?
Zenit-6U 11 launched on September 28, 1979. The time is known to the hour, not the minute.
Where can I watch Zenit-6U 11?
No webcast is on record for this launch.
What rocket launched Zenit-6U 11?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Zenit-6U 11 launch from?
43/3 (43L), Plesetsk Cosmodrome, Russian Federation.
What orbit did Zenit-6U 11 reach?
Kosmos-1138, one of 6 catalogued objects, reached a 205 × 379 km orbit inclined 72.9°.
How many satellites did Zenit-6U 11 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)