Soviet Space ProgramTsiklon-290, Baikonur Cosmodrome, Republic of Kazakhstan
US-P 20
Launched
January 23, 1985
Image: Ukrainian Space Agency
Summary
US-P 20 launched on a Soviet Space Program Tsiklon-2 from 90, Baikonur Cosmodrome, Republic of Kazakhstan on January 23, 1985. It was Soviet Space Program's 1,863rd launch, 7th this year and humanity's 2,912th orbital launch attempt. It was the 66th Tsiklon-2 flight and the 1st this year. The payload was bound for low Earth orbit (LEO). Kosmos-1625, one of 2 catalogued objects, reached a 123 × 377 km orbit inclined 65.0°. 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
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 66th Tsiklon-2 flight · 1st this yearSoviet Space Program's 1,863rd launch7th this yearhumanity's 2,912th orbital launch attempt8th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1625 · NORAD 15492 · 1985-008 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1985-008A
- Epoch
- 1985-01-24 01:46:41 UTC
- Mean motion
- 16.11531641 rev/day
- Eccentricity
- 0.0191817
- Inclination
- 65.0115°
- Ascending node
- 96.6487°
- Arg. of perigee
- 53.5897°
- Mean anomaly
- 306.6303°
- Element set
- 999
- Rev at epoch
- 4
- B*
- 0.00063999
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
2 catalogued: 1 payload, 1 rocket stage; none still in orbit
- Kosmos-1625 · NORAD 15492 · re-entered January 25, 1985
Tsiklon-2 83-626 Stage 2 · re-entered January 24, 1985
Data from J. McDowell, planet4589.org
About this launch
Ocean surveillance satellite using passive ELINT devices
Pad
90, Baikonur Cosmodrome, Republic of Kazakhstan
48th launch from 90, 1st this year · 731st from Baikonur Cosmodrome, Republic of Kazakhstan
74 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
84 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did US-P 20 launch?
US-P 20 launched on January 23, 1985. The time is known to the hour, not the minute.
Where can I watch US-P 20?
No webcast is on record for this launch.
What rocket launched US-P 20?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did US-P 20 launch from?
90, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did US-P 20 reach?
Kosmos-1625, one of 2 catalogued objects, reached a 123 × 377 km orbit inclined 65.0°.
How many satellites did US-P 20 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).