Kosmos 640 (Zenit-2M/Gektor #46), a Soviet medium-resolution film-return photoreconnaissance satellite. Voskhod (11A57) from Plesetsk Site 43/4 placed the craft in LEO on 11 April 1974 for a short optical imaging mission with a recoverable film capsule for the GRU.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 5.4 T (est.)
- Flight
- 241st
- of 299 Voskhod flights
- Date and time
- 11 April 1974, 12:22 UTC
- Rocket
- Voskhod
- Builder
- RKK Energia
- Launch site
- 43/4 (43R), Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- International designator
- 1974-021
- Launches in 1974
- 22nd of 113
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