Soviet Space ProgramTsiklon-290/20, Baikonur Cosmodrome, Republic of Kazakhstan
I2P 8
Launched
December 3, 1971
Image: Ukrainian Space Agency
Summary
I2P 8 launched on a Soviet Space Program Tsiklon-2 from 90/20, Baikonur Cosmodrome, Republic of Kazakhstan on December 3, 1971. It was Soviet Space Program's 621st launch, 80th this year and humanity's 1,290th orbital launch attempt. It was the 10th Tsiklon-2 flight and the 4th this year. The payload was bound for low Earth orbit (LEO). Kosmos-462, one of 29 catalogued objects, reached a 236 × 1,807 km orbit inclined 65.7°. 29 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
- 10th Tsiklon-2 flight · 4th this yearSoviet Space Program's 621st launch80th this yearhumanity's 1,290th orbital launch attempt119th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-462 · NORAD 5646 · 1971-106 · Space-Track · tracking 1 of 29 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1971-106A
- Epoch
- 1971-12-05 00:14:25 UTC
- Mean motion
- 13.65823078 rev/day
- Eccentricity
- 0.106236
- Inclination
- 65.7483°
- Ascending node
- 294.0999°
- Arg. of perigee
- 53.3215°
- Mean anomaly
- 316.0762°
- Element set
- 999
- Rev at epoch
- 20
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Catalogued objects
29 catalogued: 1 payload, 1 rocket stage, 26 debris, 1 component; none still in orbit
- Kosmos-462 · NORAD 5646 · re-entered April 4, 1975
Tsiklon-2 No. 09L Stage 2 · re-entered January 5, 1972
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
9th launch from 90/20, 3rd this year · 340th from Baikonur Cosmodrome, Republic of Kazakhstan
23 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
242 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did I2P 8 launch?
I2P 8 launched on December 3, 1971. The time is known to the hour, not the minute.
Where can I watch I2P 8?
No webcast is on record for this launch.
What rocket launched I2P 8?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did I2P 8 launch from?
90/20, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did I2P 8 reach?
Kosmos-462, one of 29 catalogued objects, reached a 236 × 1,807 km orbit inclined 65.7°.
How many satellites did I2P 8 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
