Soviet Space ProgramSoyuz U16/2, Plesetsk Cosmodrome, Russian Federation
Zenit-8 31
Launched
May 14, 1986
Summary
Zenit-8 31 launched on a Soviet Space Program Soyuz U from 16/2, Plesetsk Cosmodrome, Russian Federation on May 14, 1986. It was Soviet Space Program's 1,984th launch, 28th this year and humanity's 3,066th orbital launch attempt. It was the 436th Soyuz U flight and the 10th this year. The payload was bound for low Earth orbit (LEO). Kosmos-1742, one of 8 catalogued objects, reached a 204 × 369 km orbit inclined 72.9°. 8 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
- 436th Soyuz U flight · 10th this yearSoviet Space Program's 1,984th launch28th this yearhumanity's 3,066th orbital launch attempt37th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1742 · NORAD 16717 · 1986-033 · Space-Track · tracking 1 of 8 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1986-033A
- Epoch
- 1986-05-14 12:28:04 UTC
- Mean motion
- 15.98222599 rev/day
- Eccentricity
- 0.0123214
- Inclination
- 72.8762°
- Ascending node
- 66.9557°
- Arg. of perigee
- 85.0299°
- Mean anomaly
- 276.4948°
- Element set
- 999
- Rev at epoch
- 0
- 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
8 catalogued: 1 payload, 1 rocket stage, 6 components; none still in orbit
- Kosmos-1742 · NORAD 16717 · landed May 28, 1986
Soyuz-U 11-336 Blok-I · re-entered May 29, 1986
Data from J. McDowell, planet4589.org
About this launch
Film-return reconnaissance satellite
Pad

16/2, Plesetsk Cosmodrome, Russian Federation
50th launch from 16/2, 3rd this year · 1,109th from Plesetsk Cosmodrome, Russian Federation
136 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
29 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did Zenit-8 31 launch?
Zenit-8 31 launched on May 14, 1986. The time is known to the hour, not the minute.
Where can I watch Zenit-8 31?
No webcast is on record for this launch.
What rocket launched Zenit-8 31?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Zenit-8 31 launch from?
16/2, Plesetsk Cosmodrome, Russian Federation.
What orbit did Zenit-8 31 reach?
Kosmos-1742, one of 8 catalogued objects, reached a 204 × 369 km orbit inclined 72.9°.
How many satellites did Zenit-8 31 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)