Kosmos 276 (Zenit-4 No.55), a Soviet high-resolution film-return photoreconnaissance satellite. Voskhod from Plesetsk Site 41/1 placed it in LEO for optical imaging on 4 April 1969; recovered about seven days later.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 5.7 T (est.)
- Flight
- 90th
- of 299 Voskhod flights
- Date and time
- 4 April 1969, 10:20 UTC
- Rocket
- Voskhod
- Builder
- RKK Energia
- Launch site
- 41/1, Plesetsk Cosmodrome, Russian Federation
- Payload
- Government/Top Secret
- International designator
- 1969-032
- Launches in 1969
- 39th of 125
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