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Soviet Space ProgramSoyuz U31/6, Baikonur Cosmodrome, Republic of Kazakhstan
Yantar-4KS1M 1
Launched
July 10, 1991
Summary
Yantar-4KS1M 1 launched on a Soviet Space Program Soyuz U from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on July 10, 1991. It was Soviet Space Program's 2,431st launch, 36th this year and humanity's 3,648th orbital launch attempt. It was the 577th Soyuz U flight and the 5th this year. The payload was bound for low Earth orbit (LEO). Kosmos-2153, one of 2 catalogued objects, reached a 191 × 276 km orbit inclined 64.9°. 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
- 577th Soyuz U flight · 5th this yearSoviet Space Program's 2,431st launch36th this yearhumanity's 3,648th orbital launch attempt51st orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-2153 · NORAD 21560 · 1991-049 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1991-049A
- Epoch
- 1991-07-10 16:50:13 UTC
- Mean motion
- 16.17457644 rev/day
- Eccentricity
- 0.0064654
- Inclination
- 64.8726°
- Ascending node
- 173.4213°
- Arg. of perigee
- 68.8615°
- Mean anomaly
- 291.9559°
- Element set
- 999
- Rev at epoch
- 2
- B*
- 0.00018093
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-2153 · NORAD 21560 · deorbited March 13, 1992
Soyuz-U 59-726 Blok-I · re-entered July 13, 1991
Data from J. McDowell, planet4589.org
About this launch
The Neman or Yantar-4KS1M satellites were improved versions of the Terilen elctro-optical reconnaissance satellites. They were transmitting the data via Potok (Geizer) relay satellites.
Pad
31/6, Baikonur Cosmodrome, Republic of Kazakhstan
307th launch from 31/6, 1st this year · 964th from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
about 3 years after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Yantar-4KS1M 1 launch?
Yantar-4KS1M 1 launched on July 10, 1991. The time is known to the hour, not the minute.
Where can I watch Yantar-4KS1M 1?
No webcast is on record for this launch.
What rocket launched Yantar-4KS1M 1?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Yantar-4KS1M 1 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Yantar-4KS1M 1 reach?
Kosmos-2153, one of 2 catalogued objects, reached a 191 × 276 km orbit inclined 64.9°.
How many satellites did Yantar-4KS1M 1 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).