Soviet Space ProgramVoskhod43/3 (43L), Plesetsk Cosmodrome, Russian Federation
Zenit-2M 18
Launched
April 2, 1971
Image: RKK Energia
Summary
Zenit-2M 18 launched on a Soviet Space Program Voskhod from 43/3 (43L), Plesetsk Cosmodrome, Russian Federation on April 2, 1971. It was Soviet Space Program's 558th launch, 17th this year and humanity's 1,201st orbital launch attempt. It was the 150th Voskhod flight and the 7th this year. The payload was bound for low Earth orbit (LEO). Kosmos-403, one of 2 catalogued objects, reached a 222 × 235 km orbit inclined 81.3°. 2 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
- 150th Voskhod flight · 7th this yearSoviet Space Program's 558th launch17th this yearhumanity's 1,201st orbital launch attempt30th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-403 · NORAD 5108 · 1971-026 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1971-026A
- Epoch
- 1971-04-02 09:38:12 UTC
- Mean motion
- 16.19247627 rev/day
- Eccentricity
- 0.000955
- Inclination
- 81.3014°
- Ascending node
- 339.3714°
- Arg. of perigee
- 349.4584°
- Mean anomaly
- 10.6443°
- 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
2 catalogued: 1 payload, 1 rocket stage; none still in orbit
- Kosmos-403 · NORAD 5108 · landed April 14, 1971
Voskhod (N150) Blok-I · re-entered April 5, 1971
Data from J. McDowell, planet4589.org
About this launch
The soviet Zenit-2M (Gektor, 11F690) was an improved version of the Zenit-2 area surveillance reconnaissance satellite. It was part of the Vostok-based Zenit-family.
Pad

43/3 (43L), Plesetsk Cosmodrome, Russian Federation
2nd launch from 43/3 (43L), 2nd this year · 171st from Plesetsk Cosmodrome, Russian Federation
234 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
42 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did Zenit-2M 18 launch?
Zenit-2M 18 launched on April 2, 1971. The time is known to the hour, not the minute.
Where can I watch Zenit-2M 18?
No webcast is on record for this launch.
What rocket launched Zenit-2M 18?
Voskhod, flown by Soviet Space Program. Voskhod spec sheet
Where did Zenit-2M 18 launch from?
43/3 (43L), Plesetsk Cosmodrome, Russian Federation.
What orbit did Zenit-2M 18 reach?
Kosmos-403, one of 2 catalogued objects, reached a 222 × 235 km orbit inclined 81.3°.
How many satellites did Zenit-2M 18 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
