Kosmos 503 (Zenit-4M/Rotor #39), a Soviet high-resolution film-return photoreconnaissance satellite. Voskhod (11A57) from Plesetsk Site 43/3 placed the craft in LEO on 19 July 1972 for a short optical imaging mission with a recoverable film capsule.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 6 T
- Flight
- 191st
- of 299 Voskhod flights
- Date and time
- 19 July 1972, 13:45 UTC
- Rocket
- Voskhod
- Builder
- RKK Energia
- Launch site
- 43/3 (43L), Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- International designator
- 1972-056
- Launches in 1972
- 59th of 113
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