Soviet Space ProgramTsiklon-290, Baikonur Cosmodrome, Republic of Kazakhstan
US-P 26
Launched
April 8, 1987
Image: Ukrainian Space Agency
Summary
US-P 26 launched on a Soviet Space Program Tsiklon-2 from 90, Baikonur Cosmodrome, Republic of Kazakhstan on April 8, 1987. It was Soviet Space Program's 2,076th launch, 26th this year and humanity's 3,172nd orbital launch attempt. It was the 77th Tsiklon-2 flight and the 2nd this year. The payload was bound for low Earth orbit (LEO). Kosmos-1834, one of 2 catalogued objects, reached a 400 × 430 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
- 77th Tsiklon-2 flight · 2nd this yearSoviet Space Program's 2,076th launch26th this yearhumanity's 3,172nd orbital launch attempt33rd orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1834 · NORAD 17847 · 1987-031 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- COSMOS 1834
- Object ID
- 1987-031A
- Epoch
- 1987-04-08 05:12:18 UTC
- Mean motion
- 15.53036077 rev/day
- Eccentricity
- 0.0021848
- Inclination
- 65.0371°
- Ascending node
- 288.5002°
- Arg. of perigee
- 259.5355°
- Mean anomaly
- 100.3328°
- Element set
- 999
- Rev at epoch
- 0
- B*
- 0
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-1834 · NORAD 17847 · re-entered October 14, 1988
Tsiklon-2 29-809 Stage 2 · re-entered April 8, 1987
Data from J. McDowell, planet4589.org
About this launch
Ocean surveillance satellite using passive ELINT devices
Pad

90, Baikonur Cosmodrome, Republic of Kazakhstan
59th launch from 90, 2nd this year · 811th from Baikonur Cosmodrome, Republic of Kazakhstan
74 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
65 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did US-P 26 launch?
US-P 26 launched on April 8, 1987. The time is known to the hour, not the minute.
Where can I watch US-P 26?
No webcast is on record for this launch.
What rocket launched US-P 26?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did US-P 26 launch from?
90, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did US-P 26 reach?
Kosmos-1834, one of 2 catalogued objects, reached a 400 × 430 km orbit inclined 65.0°.
How many satellites did US-P 26 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
