Kosmos 1955, a Yantar-4K2 (Kobalt) film-return photoreconnaissance satellite for the Soviet military, launched from Plesetsk aboard a Soyuz-U; its recovery capsule landed after a roughly two-month mission, with the satellite decaying August 20, 1988.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 6.6 T (est.)
- Flight
- 509th
- of 714 Soyuz U flights
- Date and time
- 22 June 1988, 13:00 UTC
- Rocket
- Soyuz U
- Builder
- Progress RSC
- Launch site
- 1/5, Baikonur Cosmodrome, Republic of Kazakhstan
- Payload
- Government/Top Secret
- International designator
- 1988-054
- Launches in 1988
- 55th of 121
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