Russian Federal Space Agency (ROSCOSMOS)Soyuz U31/6, Baikonur Cosmodrome, Republic of Kazakhstan
Yantar-4KS1M 5
Launched
April 28, 1994
Summary
Yantar-4KS1M 5 launched on a Russian Federal Space Agency (ROSCOSMOS) Soyuz U from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on April 28, 1994. It was Russian Federal Space Agency (ROSCOSMOS)'s 35th launch, 5th this year and humanity's 3,894th orbital launch attempt. It was the 603rd Soyuz U flight and the 3rd this year. The payload was bound for low Earth orbit (LEO). Kosmos-2280, one of 2 catalogued objects, reached a 194 × 271 km orbit inclined 70.4°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 603rd Soyuz U flight · 3rd this yearRussian Federal Space Agency (ROSCOSMOS)'s 35th launch5th this yearhumanity's 3,894th orbital launch attempt26th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-2280 · NORAD 23095 · 1994-025 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- COSMOS 2280
- Object ID
- 1994-025A
- Epoch
- 1994-04-29 02:01:04 UTC
- Mean motion
- 16.17864199 rev/day
- Eccentricity
- 0.0058126
- Inclination
- 70.3815°
- Ascending node
- 157.0783°
- Arg. of perigee
- 78.6271°
- Mean anomaly
- 282.1489°
- Element set
- 999
- Rev at epoch
- 6
- B*
- 0.00015012
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-2280 · NORAD 23095 · deorbited March 10, 1995
Soyuz-U 23-751 Blok-I · re-entered May 2, 1994
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
317th launch from 31/6, 1st this year · 1,028th from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
233 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Yantar-4KS1M 5 launch?
Yantar-4KS1M 5 launched on April 28, 1994. The time is known to the hour, not the minute.
Where can I watch Yantar-4KS1M 5?
No webcast is on record for this launch.
What rocket launched Yantar-4KS1M 5?
Soyuz U, flown by Russian Federal Space Agency (ROSCOSMOS). Soyuz U spec sheet
Where did Yantar-4KS1M 5 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Yantar-4KS1M 5 reach?
Kosmos-2280, one of 2 catalogued objects, reached a 194 × 271 km orbit inclined 70.4°.
How many satellites did Yantar-4KS1M 5 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)