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Zenit-2M

Voskhod 11A57 launch from Plesetsk (Soviet Union) on April 18, 1975, carrying 2 payloads. GCAT records the launch as a success.

April 18, 1975 · 10:00 UTCLaunch 1975-031Launch no. 1,679 in the log
RocketVoskhod 11A57
SpaceportPlesetskpad LC41/1
OutcomeSuccess
Launch agencyRVSNSoviet Union

Flight

Date and time (UTC)
April 18, 1975, 10:00
Launch designation
1975-031
Mission
Zenit-2M
Flight name
Kosmos-728
Vehicle flight ID
77016 -212

Orbit and payload

Initial apogee
326 km
Payload mass to orbit
6.0 t
Payloads
2
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
Kosmos-7281975-031ANORAD 7745Main Space Forces DirectorateOptical imaging2,200 kgLanded · Apr 29, 1975
Kapsula Kosmosa-7281975-031GNORAD 7779Central Specialized Design BureauTechnology630 kgReentered (orbital decay) · May 16, 1975

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