Soviet Space ProgramVoskhod43/4 (43R), Plesetsk Cosmodrome, Russian Federation
Zenit-4MK 11
Launched
April 19, 1973
Image: RKK Energia
Summary
Zenit-4MK 11 launched on a Soviet Space Program Voskhod from 43/4 (43R), Plesetsk Cosmodrome, Russian Federation on April 19, 1973. It was Soviet Space Program's 730th launch, 18th this year and humanity's 1,443rd orbital launch attempt. It was the 210th Voskhod flight and the 7th this year. The payload was bound for low Earth orbit (LEO). Kosmos-554, one of 197 catalogued objects, reached a 216 × 350 km orbit inclined 72.8°. 197 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Voskhod · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 210th Voskhod flight · 7th this yearSoviet Space Program's 730th launch18th this yearhumanity's 1,443rd orbital launch attempt21st orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-554 · NORAD 6432 · 1973-021 · Space-Track · tracking 1 of 197 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1973-021A
- Epoch
- 1973-04-19 10:18:12 UTC
- Mean motion
- 15.99334297 rev/day
- Eccentricity
- 0.0100541
- Inclination
- 72.8259°
- Ascending node
- 346.9715°
- Arg. of perigee
- 76.8713°
- Mean anomaly
- 284.3662°
- 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
197 catalogued: 1 payload, 1 rocket stage, 192 debris, 3 components; none still in orbit
- Kosmos-554 · NORAD 6432 · broke up May 6, 1973
Voskhod 43-733 Blok-I · re-entered April 26, 1973
Data from J. McDowell, planet4589.org
About this launch
High resolution optical reconnaissance satellite of the Vostok-based Zenit family.
Pad

43/4 (43R), Plesetsk Cosmodrome, Russian Federation
42nd launch from 43/4 (43R), 3rd this year · 284th from Plesetsk Cosmodrome, Russian Federation
329 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
27 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did Zenit-4MK 11 launch?
Zenit-4MK 11 launched on April 19, 1973. The time is known to the hour, not the minute.
Where can I watch Zenit-4MK 11?
No webcast is on record for this launch.
What rocket launched Zenit-4MK 11?
Voskhod, flown by Soviet Space Program. Voskhod spec sheet
Where did Zenit-4MK 11 launch from?
43/4 (43R), Plesetsk Cosmodrome, Russian Federation.
What orbit did Zenit-4MK 11 reach?
Kosmos-554, one of 197 catalogued objects, reached a 216 × 350 km orbit inclined 72.8°.
How many satellites did Zenit-4MK 11 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
