Soviet Space ProgramSoyuz U43/4 (43R), Plesetsk Cosmodrome, Russian Federation
Zenit-8 91
Launched
April 17, 1990
Summary
Zenit-8 91 launched on a Soviet Space Program Soyuz U from 43/4 (43R), Plesetsk Cosmodrome, Russian Federation on April 17, 1990. It was Soviet Space Program's 2,336th launch, 20th this year and humanity's 3,513th orbital launch attempt. It was the 561st Soyuz U flight and the 7th this year. The payload was bound for low Earth orbit (LEO). Kosmos-2073, one of 8 catalogued objects, reached a 183 × 250 km orbit inclined 82.4°. 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
- 561st Soyuz U flight · 7th this yearSoviet Space Program's 2,336th launch20th this yearhumanity's 3,513th orbital launch attempt37th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-2073 · NORAD 20573 · 1990-035 · Space-Track · tracking 1 of 8 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1990-035A
- Epoch
- 1990-04-17 09:19:35 UTC
- Mean motion
- 16.23756118 rev/day
- Eccentricity
- 0.0050233
- Inclination
- 82.3503°
- Ascending node
- 351.5506°
- Arg. of perigee
- 99.4629°
- Mean anomaly
- 267.2819°
- 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
8 catalogued: 1 payload, 1 rocket stage, 6 components; none still in orbit
- Kosmos-2073 · NORAD 20573 · landed April 28, 1990
Soyuz-U 53-814 Blok-I · re-entered April 18, 1990
Data from J. McDowell, planet4589.org
About this launch
Film-return reconnaissance satellite
Pad

43/4 (43R), Plesetsk Cosmodrome, Russian Federation
222nd launch from 43/4 (43R), 4th this year · 1,308th from Plesetsk Cosmodrome, Russian Federation
329 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
13 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did Zenit-8 91 launch?
Zenit-8 91 launched on April 17, 1990. The time is known to the hour, not the minute.
Where can I watch Zenit-8 91?
No webcast is on record for this launch.
What rocket launched Zenit-8 91?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Zenit-8 91 launch from?
43/4 (43R), Plesetsk Cosmodrome, Russian Federation.
What orbit did Zenit-8 91 reach?
Kosmos-2073, one of 8 catalogued objects, reached a 183 × 250 km orbit inclined 82.4°.
How many satellites did Zenit-8 91 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)