Soviet Space ProgramSoyuz U1/5, Baikonur Cosmodrome, Republic of Kazakhstan
Yantar-4KS1 10
Launched
July 9, 1988
Summary
Yantar-4KS1 10 launched on a Soviet Space Program Soyuz U from 1/5, Baikonur Cosmodrome, Republic of Kazakhstan on July 9, 1988. The mission failed. It was Soviet Space Program's 2,197th launch, 50th this year and humanity's 3,313th orbital launch attempt. It was the 512th Soyuz U flight and the 19th this year. The payload was bound for low Earth orbit (LEO).
- 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
- 512th Soyuz U flight · 19th this yearSoviet Space Program's 2,197th launch50th this yearhumanity's 3,313th orbital launch attempt60th orbital launch attempt this year
Flight preview
About this launch
First generation electro-optical reconnaissance satellite
Pad

1/5, Baikonur Cosmodrome, Republic of Kazakhstan
259th launch from 1/5, 11th this year · 874th from Baikonur Cosmodrome, Republic of Kazakhstan
487 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
17 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did Yantar-4KS1 10 launch?
Yantar-4KS1 10 launched on July 9, 1988. The time is known to the hour, not the minute.
Where can I watch Yantar-4KS1 10?
No webcast is on record for this launch.
What rocket launched Yantar-4KS1 10?
Soyuz U, flown by Soviet Space Program. Soyuz U spec sheet
Where did Yantar-4KS1 10 launch from?
1/5, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit was Yantar-4KS1 10 going to?
Low Earth Orbit (LEO), a government/top secret mission.
![[AUTO] Soyuz U - image](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fsoyuz2520u_image_20190222031023.jpeg&w=1600)