Soviet Space ProgramTsiklon-290, Baikonur Cosmodrome, Republic of Kazakhstan
US-P 27
Launched
October 10, 1987
Image: Ukrainian Space Agency
Summary
US-P 27 launched on a Soviet Space Program Tsiklon-2 from 90, Baikonur Cosmodrome, Republic of Kazakhstan on October 10, 1987. It was Soviet Space Program's 2,126th launch, 76th this year and humanity's 3,229th orbital launch attempt. It was the 80th Tsiklon-2 flight and the 5th this year. The payload was bound for low Earth orbit (LEO). Kosmos-1890, one of 2 catalogued objects, reached a 409 × 424 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
- 80th Tsiklon-2 flight · 5th this yearSoviet Space Program's 2,126th launch76th this yearhumanity's 3,229th orbital launch attempt90th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1890 · NORAD 18396 · 1987-086 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- COSMOS 1890
- Object ID
- 1987-086A
- Epoch
- 1987-10-11 05:20:58 UTC
- Mean motion
- 15.52541615 rev/day
- Eccentricity
- 0.0011664
- Inclination
- 65.0121°
- Ascending node
- 19.9528°
- Arg. of perigee
- 259.8608°
- Mean anomaly
- 100.9882°
- Element set
- 999
- Rev at epoch
- 4
- B*
- 0.05136
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-1890 · NORAD 18396 · re-entered December 26, 1988
Tsiklon-2 29-814 Stage 2 · re-entered October 11, 1987
Data from J. McDowell, planet4589.org
About this launch
Ocean surveillance satellite using passive ELINT devices
Pad

90, Baikonur Cosmodrome, Republic of Kazakhstan
62nd launch from 90, 5th this year · 836th from Baikonur Cosmodrome, Republic of Kazakhstan
74 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
92 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did US-P 27 launch?
US-P 27 launched on October 10, 1987. The time is known to the hour, not the minute.
Where can I watch US-P 27?
No webcast is on record for this launch.
What rocket launched US-P 27?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did US-P 27 launch from?
90, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did US-P 27 reach?
Kosmos-1890, one of 2 catalogued objects, reached a 409 × 424 km orbit inclined 65.0°.
How many satellites did US-P 27 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
