Soyuz-U from Baikonur lofted Kosmos 1643, a Yantar-4KS1 (Terilen) electro-optical reconnaissance satellite for the Soviet military that downlinked digital imagery rather than returning film capsules.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 6.6 T (est.)
- Flight
- 395th
- of 714 Soyuz U flights
- Date and time
- 25 March 1985, 10:00 UTC
- Rocket
- Soyuz U
- Builder
- Progress RSC
- Launch site
- 1/5, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Government/Top Secret
- International designator
- 1985-026
- Launches in 1985
- 26th of 125
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
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