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Soviet Space ProgramTsiklon-290/20, Baikonur Cosmodrome, Republic of Kazakhstan

I2P 8

Launched

December 3, 1971

Launch Successful

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

65.7°Inclination
236 × 1807 kmPerigee × apogeefrom mean elements
105.4 minPeriodfrom mean elements
294.1°Ascending node
20039 d agoElement epoch1971-12-05 00:14 UTC · stale

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

Map of 90/20

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

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).