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Soviet Space ProgramSoyuz U31/6, Baikonur Cosmodrome, Republic of Kazakhstan
Zenit-4MK 40
Launched
April 16, 1975
Summary
Zenit-4MK 40 launched on a Soviet Space Program Soyuz U from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on April 16, 1975. It was Soviet Space Program's 911th launch, 25th this year and humanity's 1,684th orbital launch attempt. It was the 15th Soyuz U flight and the 2nd this year. The payload was bound for low Earth orbit (LEO). Kosmos-727, one of 5 catalogued objects, reached a 177 × 334 km orbit inclined 65.0°. 5 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
- 15th Soyuz U flight · 2nd this yearSoviet Space Program's 911th launch25th this yearhumanity's 1,684th orbital launch attempt33rd orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-727 · NORAD 7742 · 1975-030 · Space-Track · tracking 1 of 5 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1975-030A
- Epoch
- 1975-04-16 09:21:42 UTC
- Mean motion
- 16.09376753 rev/day
- Eccentricity
- 0.0118377
- Inclination
- 64.9867°
- Ascending node
- 359.7207°
- Arg. of perigee
- 69.2237°
- Mean anomaly
- 292.1521°
- 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
5 catalogued: 1 payload, 1 rocket stage, 3 components; none still in orbit
- Kosmos-727 · NORAD 7742 · landed April 28, 1975
Soyuz-U 41-849 Blok-I · re-entered April 21, 1975
Data from J. McDowell, planet4589.org
About this launch
High resolution optical reconnaissance satellite of the Vostok-based Zenit family.
Pad
31/6, Baikonur Cosmodrome, Republic of Kazakhstan
161st launch from 31/6, 5th this year · 424th from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
20 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Zenit-4MK 40 launch?
Zenit-4MK 40 launched on April 16, 1975. The time is known to the hour, not the minute.
Where can I watch Zenit-4MK 40?
No webcast is on record for this launch.
What rocket launched Zenit-4MK 40?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Zenit-4MK 40 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Zenit-4MK 40 reach?
Kosmos-727, one of 5 catalogued objects, reached a 177 × 334 km orbit inclined 65.0°.
How many satellites did Zenit-4MK 40 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).