Soviet Space ProgramTsiklon-290/19, Baikonur Cosmodrome, Republic of Kazakhstan
I2M 3
Launched
October 20, 1970
Image: Ukrainian Space Agency
Summary
I2M 3 launched on a Soviet Space Program Tsiklon-2 from 90/19, Baikonur Cosmodrome, Republic of Kazakhstan on October 20, 1970. It was Soviet Space Program's 520th launch, 67th this year and humanity's 1,142nd orbital launch attempt. It was the 4th Tsiklon-2 flight and the 2nd this year. The payload was bound for low Earth orbit (LEO). The tracked orbit of Kosmos-373, one of 2 catalogued objects, from November 1, 1970, was 466 × 569 km inclined 62.9°. 2 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
- Test Target · Low Earth Orbit (LEO)
- Milestone
- 4th Tsiklon-2 flight · 2nd this yearSoviet Space Program's 520th launch67th this yearhumanity's 1,142nd orbital launch attempt96th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-373 · NORAD 4590 · 1970-087 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- COSMOS 373
- Object ID
- 1970-087A
- Epoch
- 1970-11-01 19:21:17 UTC
- Mean motion
- 15.18428326 rev/day
- Eccentricity
- 0.007455
- Inclination
- 62.92°
- Ascending node
- 96.3846°
- Arg. of perigee
- 317.7039°
- Mean anomaly
- 41.8286°
- Element set
- 999
- Rev at epoch
- 191
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Catalogued objects
2 catalogued: 1 payload, 1 rocket stage; none still in orbit
- Kosmos-373 · NORAD 4590 · re-entered March 8, 1980
Tsiklon-2 No. 06L Stage 2 · re-entered January 18, 1971
Data from J. McDowell, planet4589.org
About this launch
The I2M satellites were maneuverable target satellites for the I2P coorbital ASAT satellites.
Pad

90/19, Baikonur Cosmodrome, Republic of Kazakhstan
8th launch from 90/19, 2nd this year · 303rd from Baikonur Cosmodrome, Republic of Kazakhstan
16 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
16 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did I2M 3 launch?
I2M 3 launched on October 20, 1970. The time is known to the hour, not the minute.
Where can I watch I2M 3?
No webcast is on record for this launch.
What rocket launched I2M 3?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did I2M 3 launch from?
90/19, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did I2M 3 reach?
The tracked orbit of Kosmos-373, one of 2 catalogued objects, from November 1, 1970, was 466 × 569 km inclined 62.9°.
How many satellites did I2M 3 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
