SOVIET SPACE PROGRAM
Proton | Mars-3
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May 28, 1971 at 15:26 UTC
▸ Flight profile›
Initializing Launch Globe…
PAD81/23 (81L)
SITEBaikonur Cosmodrome, Republic of Kazakhstan →ORBITMars Orbit
TYPERobotic Exploration
MISSION OVERVIEW
Mars orbiter and lander
LAUNCH DETAILS
VEHICLE
ProtonAGENCY
Soviet Space ProgramMISSION
Mars-3
MISSION TYPE
Robotic Exploration
TARGET ORBIT
Mars Orbit
LAUNCH PAD
81/23 (81L)LAUNCH SITE
Baikonur Cosmodrome, Republic of KazakhstanCOUNTRY
RUS
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 3e2137b5-9a6b-4339-b157-0ebdf2ba649b
Reported date: May 28, 1971 at 15:26 UTC
Last synced: 5 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE — Proton →
MANUFACTURER
Russian Federal Space Agency (ROSCOSMOS)
VARIANT
K/D
FLIGHTS
39
SUCCESSES
24
SUCCESS RATE
61.5%
This four stage version of the Proton was originally designed to send manned circumlunar spacecraft into translunar trajectory.
FREQUENTLY ASKED QUESTIONS
When is the Proton | Mars-3 launch?
The Proton | Mars-3 is scheduled for Friday, May 28, 1971 at 3:26 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Mars-3?
The Proton | Mars-3 mission uses the Proton rocket, manufactured by Russian Federal Space Agency (ROSCOSMOS). The Proton has flown 39 times with a 61.5% success rate.
Where is the Proton | Mars-3 launching from?
The launch takes place from 81/23 (81L) at Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit is Mars-3 going to?
The Mars-3 mission is targeting Mars Orbit.
Who is launching Mars-3?
The Proton | Mars-3 is operated by Soviet Space Program.
Can I watch the Proton | Mars-3 launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
LAUNCH TIMELINE
Mar 28, 2026 21:44 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 21:44 UTC
Launch date set: May 28, 1971 at 15:26 UTC
NET (No Earlier Than) confirmed by Soviet Space Program
Mar 28, 2026 21:44 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 5 minutes ago
●Launch Library 25 minutes ago
Launch ID: 3e2137b5-9a6b-4339-b157-0ebdf2ba649b
●Open-Meteo Weather3 days ago
Pad weather at 46.07, 62.98
BROWSE BY
Mission Profile
Mars-3 was a Proton K/D mission operated by Soviet Space Program that lifted off from 81/23 (81L), Baikonur Cosmodrome, Republic of Kazakhstan on May 28, 1971. The flight carried its payload on a robotic exploration mission to Mars Orbit. The launch was a success.