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Soviet Space ProgramSoyuz U31/6, Baikonur Cosmodrome, Republic of Kazakhstan
Yantar-4K2 15
Launched
May 23, 1985
Summary
Yantar-4K2 15 launched on a Soviet Space Program Soyuz U from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on May 23, 1985. It was Soviet Space Program's 1,887th launch, 31st this year and humanity's 2,944th orbital launch attempt. It was the 402nd Soyuz U flight and the 13th this year. The payload was bound for low Earth orbit (LEO). Kosmos-1654, one of 19 catalogued objects, reached a 180 × 350 km orbit inclined 64.9°. 19 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Soyuz U · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 402nd Soyuz U flight · 13th this yearSoviet Space Program's 1,887th launch31st this yearhumanity's 2,944th orbital launch attempt40th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1654 · NORAD 15734 · 1985-039 · Space-Track · tracking 1 of 19 objects
Show the numbers for orbit elements
- Object
- COSMOS 1654
- Object ID
- 1985-039A
- Epoch
- 1985-05-23 14:02:06 UTC
- Mean motion
- 16.06001403 rev/day
- Eccentricity
- 0.0128622
- Inclination
- 64.8806°
- Ascending node
- 106.7699°
- Arg. of perigee
- 66.8847°
- Mean anomaly
- 295.5622°
- Element set
- 999
- Rev at epoch
- 1
- 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
19 catalogued: 1 payload, 1 rocket stage, 17 debris; none still in orbit
- Kosmos-1654 · NORAD 15734 · re-entered August 7, 1985
Soyuz-U 56-827 Blok-I · re-entered May 29, 1985
Data from J. McDowell, planet4589.org
About this launch
Film-return reconnaissance satellite
Pad
31/6, Baikonur Cosmodrome, Republic of Kazakhstan
282nd launch from 31/6, 5th this year · 741st from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
27 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Yantar-4K2 15 launch?
Yantar-4K2 15 launched on May 23, 1985. The time is known to the hour, not the minute.
Where can I watch Yantar-4K2 15?
No webcast is on record for this launch.
What rocket launched Yantar-4K2 15?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Yantar-4K2 15 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Yantar-4K2 15 reach?
Kosmos-1654, one of 19 catalogued objects, reached a 180 × 350 km orbit inclined 64.9°.
How many satellites did Yantar-4K2 15 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).