Soviet Space ProgramTsiklon-290/20, Baikonur Cosmodrome, Republic of Kazakhstan
I2P 7
Launched
April 4, 1971
Image: Ukrainian Space Agency
Summary
I2P 7 launched on a Soviet Space Program Tsiklon-2 from 90/20, Baikonur Cosmodrome, Republic of Kazakhstan on April 4, 1971. It was Soviet Space Program's 559th launch, 18th this year and humanity's 1,202nd orbital launch attempt. It was the 9th Tsiklon-2 flight and the 3rd this year. The payload was bound for low Earth orbit (LEO). Kosmos-404, one of 4 catalogued objects, reached a 809 × 1,016 km orbit inclined 65.7°. 4 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Tsiklon-2 · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 9th Tsiklon-2 flight · 3rd this yearSoviet Space Program's 559th launch18th this yearhumanity's 1,202nd orbital launch attempt31st orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-404 · NORAD 5113 · 1971-027 · Space-Track · tracking 1 of 4 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1971-027A
- Epoch
- 1971-04-04 17:36:01 UTC
- Mean motion
- 13.96592712 rev/day
- Eccentricity
- 0.0142259
- Inclination
- 65.738°
- Ascending node
- 82.1784°
- Arg. of perigee
- 245.1581°
- Mean anomaly
- 113.4597°
- Element set
- 999
- Rev at epoch
- 2
- 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
4 catalogued: 1 payload, 1 rocket stage, 2 debris; none still in orbit
- Kosmos-404 · NORAD 5113 · deorbited April 4, 1971
Tsiklon-2 No. 14L Stage 2 · re-entered April 12, 1971
Data from J. McDowell, planet4589.org
About this launch
The I2P satellites were the first soviet coorbital ASAT system.
Pad

90/20, Baikonur Cosmodrome, Republic of Kazakhstan
8th launch from 90/20, 2nd this year · 319th from Baikonur Cosmodrome, Republic of Kazakhstan
23 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
38 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did I2P 7 launch?
I2P 7 launched on April 4, 1971. The time is known to the hour, not the minute.
Where can I watch I2P 7?
No webcast is on record for this launch.
What rocket launched I2P 7?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did I2P 7 launch from?
90/20, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did I2P 7 reach?
Kosmos-404, one of 4 catalogued objects, reached a 809 × 1,016 km orbit inclined 65.7°.
How many satellites did I2P 7 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
