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Soviet Space ProgramSoyuz U31/6, Baikonur Cosmodrome, Republic of Kazakhstan
Yantar-4K2 1
Launched
August 21, 1981
Summary
Yantar-4K2 1 launched on a Soviet Space Program Soyuz U from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on August 21, 1981. It was Soviet Space Program's 1,517th launch, 66th this year and humanity's 2,473rd orbital launch attempt. It was the 254th Soyuz U flight and the 31st this year. The payload was bound for low Earth orbit (LEO). Kosmos-1298, one of 2 catalogued objects, reached a 180 × 333 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
- 254th Soyuz U flight · 31st this yearSoviet Space Program's 1,517th launch66th this yearhumanity's 2,473rd orbital launch attempt82nd orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1298 · NORAD 12776 · 1981-080 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1981-080A
- Epoch
- 1981-08-21 10:12:14 UTC
- Mean motion
- 16.09098816 rev/day
- Eccentricity
- 0.011591
- Inclination
- 64.8977°
- Ascending node
- 160.5921°
- Arg. of perigee
- 56.9003°
- Mean anomaly
- 304.3231°
- 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-1298 · NORAD 12776 · landed October 2, 1981
Soyuz-U 39-115 Blok-I · re-entered August 24, 1981
Data from J. McDowell, planet4589.org
About this launch
Film-return reconnaissance satellite
Pad
31/6, Baikonur Cosmodrome, Republic of Kazakhstan
235th launch from 31/6, 13th this year · 605th from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
36 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Yantar-4K2 1 launch?
Yantar-4K2 1 launched on August 21, 1981. The time is known to the hour, not the minute.
Where can I watch Yantar-4K2 1?
No webcast is on record for this launch.
What rocket launched Yantar-4K2 1?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Yantar-4K2 1 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did Yantar-4K2 1 reach?
Kosmos-1298, one of 2 catalogued objects, reached a 180 × 333 km orbit inclined 64.9°.
How many satellites did Yantar-4K2 1 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).