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// optical imaging · 1975

Cosmos 731

Cosmos 731 was launched on May 21, 1975 aboard a Voskhod 11A57 from Baikonur. Latest status in GCAT: landed (Jun 2, 1975).

COSPAR 1975-041ANORAD 7810Soviet Union

Identity

Name in GCAT
Kosmos-731
Common name
Cosmos 731
Payload designation
Gektor No. 55L
Other names
Zenit-2M No. 55L:P,11F690 No. 780-31-195:RA
International designator
1975-041A
NORAD catalog number
7810
GCAT identifier
S07810
UN registration
A/AC.105/INF.322

Mission

Mission type
Optical imaging
Use
Defense
Program
Zenit-2M
Country
Soviet Union
Builder
Central Specialized Design Bureau
Platform (bus)
Zenit-2M

Launch

Date
May 21, 1975 · 06:59 UTC
Launch record
1975-041Success
Spaceport
Baikonur · pad LC31

Orbit and fate

Orbit class (GCAT)
LLEO/I
Perigee
202 km
Apogee
294 km
Inclination
64.96°
Status
Landed
Status date
June 2, 1975
Last known active
Jun 2, 1975
End of operations
Jun 2, 1975

Size

Mass
2,200 kg
Dry mass
2,200 kg
Total mass with attached objects
6,030 kg
Length
6.5 m
Diameter
2.40 m
Span
6.5 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q1119705 (CC0).