Soviet Space ProgramSoyuz U16/2, Plesetsk Cosmodrome, Russian Federation
Yantar-4K2 18
Launched
October 25, 1985
Summary
Yantar-4K2 18 launched on a Soviet Space Program Soyuz U from 16/2, Plesetsk Cosmodrome, Russian Federation on October 25, 1985. It was Soviet Space Program's 1,939th launch, 83rd this year and humanity's 3,009th orbital launch attempt. It was the 421st Soyuz U flight and the 32nd this year. The payload was bound for low Earth orbit (LEO). Kosmos-1699, one of 2 catalogued objects, reached a 175 × 344 km orbit inclined 67.1°. 2 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
- 421st Soyuz U flight · 32nd this yearSoviet Space Program's 1,939th launch83rd this yearhumanity's 3,009th orbital launch attempt105th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1699 · NORAD 16198 · 1985-101 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- COSMOS 1699
- Object ID
- 1985-101A
- Epoch
- 1985-10-25 14:26:34 UTC
- Mean motion
- 16.08028335 rev/day
- Eccentricity
- 0.0128013
- Inclination
- 67.1381°
- Ascending node
- 240.5856°
- Arg. of perigee
- 95.6235°
- Mean anomaly
- 265.9571°
- 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-1699 · NORAD 16198 · landed December 23, 1985
Soyuz-U 46-913 Blok-I · re-entered October 30, 1985
Data from J. McDowell, planet4589.org
About this launch
Film-return reconnaissance satellite
Pad

16/2, Plesetsk Cosmodrome, Russian Federation
44th launch from 16/2, 9th this year · 1,081st from Plesetsk Cosmodrome, Russian Federation
136 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
24 days after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did Yantar-4K2 18 launch?
Yantar-4K2 18 launched on October 25, 1985. The time is known to the hour, not the minute.
Where can I watch Yantar-4K2 18?
No webcast is on record for this launch.
What rocket launched Yantar-4K2 18?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Yantar-4K2 18 launch from?
16/2, Plesetsk Cosmodrome, Russian Federation.
What orbit did Yantar-4K2 18 reach?
Kosmos-1699, one of 2 catalogued objects, reached a 175 × 344 km orbit inclined 67.1°.
How many satellites did Yantar-4K2 18 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
![[AUTO] Soyuz U - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fsoyuz2520u_image_20190222031023.jpeg&w=1600)