Soviet Space ProgramTsiklon-290/20, Baikonur Cosmodrome, Republic of Kazakhstan
I2P 6
Launched
February 25, 1971
Image: Ukrainian Space Agency
Summary
I2P 6 launched on a Soviet Space Program Tsiklon-2 from 90/20, Baikonur Cosmodrome, Republic of Kazakhstan on February 25, 1971. It was Soviet Space Program's 550th launch, 9th this year and humanity's 1,188th orbital launch attempt. It was the 7th Tsiklon-2 flight and the 1st this year. The payload was bound for low Earth orbit (LEO). Kosmos-397, one of 122 catalogued objects, reached a 582 × 2,207 km orbit inclined 65.8°. 122 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
- 7th Tsiklon-2 flight · 1st this yearSoviet Space Program's 550th launch9th this yearhumanity's 1,188th orbital launch attempt17th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-397 · NORAD 4964 · 1971-015 · Space-Track · tracking 1 of 122 objects
Show the numbers for orbit elements
- Object
- COSMOS 397
- Object ID
- 1971-015A
- Epoch
- 1971-02-26 18:37:18 UTC
- Mean motion
- 12.68709564 rev/day
- Eccentricity
- 0.1046189
- Inclination
- 65.7618°
- Ascending node
- 352.867°
- Arg. of perigee
- 50.3064°
- Mean anomaly
- 318.5528°
- Element set
- 999
- Rev at epoch
- 17
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Catalogued objects
122 catalogued: 1 payload, 1 rocket stage, 118 debris, 2 components; 44 still in orbit
- Kosmos-397 · NORAD 4964 · in orbit
Tsiklon-2 No. 13L Stage 2 · re-entered March 4, 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
7th launch from 90/20, 1st this year · 315th from Baikonur Cosmodrome, Republic of Kazakhstan
23 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
118 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did I2P 6 launch?
I2P 6 launched on February 25, 1971. The time is known to the hour, not the minute.
Where can I watch I2P 6?
No webcast is on record for this launch.
What rocket launched I2P 6?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did I2P 6 launch from?
90/20, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did I2P 6 reach?
Kosmos-397, one of 122 catalogued objects, reached a 582 × 2,207 km orbit inclined 65.8°.
How many satellites did I2P 6 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).