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Zenit-4M

Voskhod 11A57 launch from Baikonur (Soviet Union) on May 18, 1971, carrying 1 payload. GCAT records the launch as a success.

May 18, 1971 · 08:00 UTCLaunch 1971-043Launch no. 1,216 in the log
SpaceportBaikonurpad LC31
OutcomeSuccess
Launch agencyRVSNSoviet Union

Flight

Date and time (UTC)
May 18, 1971, 08:00
Launch designation
1971-043
Mission
Zenit-4M
Flight name
Kosmos-420
Vehicle flight ID
7705712-218

Orbit and payload

Initial apogee
347 km
Payload mass to orbit
6.0 t
Payloads
1
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
Kosmos-4201971-043ANORAD 5230Main Space Forces DirectorateOptical imaging2,200 kgLanded · May 29, 1971

Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.