Proton / UR-500 K/D — mission imagery
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Mars-4

Proton / UR-500 K/DSoviet Space Program81/23 (81L)
Saturday, July 21, 1973 · 07:30 PM UTC
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This mission is complete.

Mission Brief

Mars orbiter

PayloadMars-4
OrbitMars Orbit
CustomerSoviet Space Program
Stages4
Pad81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan

Mission Timeline

14 / 14100%

Ground vector

Launch site

Site locked

81/23 (81L)

Baikonur Cosmodrome, Republic of Kazakhstan

Global range
SITE LOCK
Latitude
46.074°N
Longitude
62.978°E

Range Weather

Launch commit criteria

Clear
Watch
TrackingNo active constraints
Weather Rules

Tracking no weather issues at this time.

Primary concern
No weather issues
Rule count
0
Temperature
Not reported
Surface wind
Not reported
Window

07:30 PM UTC - 07:30 PM UTC

Vehicle

Proton / UR-500 K/D

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Height58.2 m
LEO Payload21,000 kg
Launches2,456
Successes2,288

Provider

Soviet Space Program

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Schedule History

No meaningful launch-time or status changes recorded.

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