Soviet Space ProgramTsiklon-290, Baikonur Cosmodrome, Republic of Kazakhstan
US-P 23
Launched
February 27, 1986
Image: Ukrainian Space Agency
Summary
US-P 23 launched on a Soviet Space Program Tsiklon-2 from 90, Baikonur Cosmodrome, Republic of Kazakhstan on February 27, 1986. It was Soviet Space Program's 1,972nd launch, 16th this year and humanity's 3,051st orbital launch attempt. It was the 71st Tsiklon-2 flight and the 1st this year. The payload was bound for low Earth orbit (LEO). Kosmos-1735, one of 2 catalogued objects, reached a 410 × 425 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
- 71st Tsiklon-2 flight · 1st this yearSoviet Space Program's 1,972nd launch16th this yearhumanity's 3,051st orbital launch attempt22nd orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1735 · NORAD 16620 · 1986-021 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- COSMOS 1735
- Object ID
- 1986-021A
- Epoch
- 1986-02-28 03:49:44 UTC
- Mean motion
- 15.52074191 rev/day
- Eccentricity
- 0.0010794
- Inclination
- 65.0398°
- Ascending node
- 213.9064°
- Arg. of perigee
- 269.0534°
- Mean anomaly
- 90.6421°
- Element set
- 999
- Rev at epoch
- 17
- B*
- 0.00088776
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-1735 · NORAD 16620 · re-entered November 17, 1988
Tsiklon-2 86-101 Stage 2 · re-entered February 27, 1986
Data from J. McDowell, planet4589.org
About this launch
Ocean surveillance satellite using passive ELINT devices
Pad
90, Baikonur Cosmodrome, Republic of Kazakhstan
53rd launch from 90, 1st this year · 768th from Baikonur Cosmodrome, Republic of Kazakhstan
74 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
161 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did US-P 23 launch?
US-P 23 launched on February 27, 1986. The time is known to the hour, not the minute.
Where can I watch US-P 23?
No webcast is on record for this launch.
What rocket launched US-P 23?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did US-P 23 launch from?
90, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did US-P 23 reach?
Kosmos-1735, one of 2 catalogued objects, reached a 410 × 425 km orbit inclined 65.0°.
How many satellites did US-P 23 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).