SOVIET SPACE PROGRAM
Sputnik 8A91 | D-1 1
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Apr 27, 1958 at 07:00 UTC
▸ Flight profile›
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MISSION OVERVIEW
First complex scientific satellite with 12 experiments and a total mass of1327 kg. It failed to reach orbit due to a launch vehicle failure.
LAUNCH DETAILS
VEHICLE
Sputnik 8A91AGENCY
Soviet Space ProgramMISSION
D-1 1
MISSION TYPE
Earth Science
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
1/5LAUNCH SITE
Baikonur Cosmodrome, Republic of KazakhstanCOUNTRY
RUS
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 59d2de37-4c22-495f-8718-4b22f5f34ab7
Reported date: Apr 27, 1958 at 07:00 UTC
Last synced: 6 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 — Sputnik 8A91 →
MANUFACTURER
Energia
VARIANT
8A91
FLIGHTS
2
SUCCESSES
1
SUCCESS RATE
50%
An early Russian rocket designed by Sergei Korolev in the Soviet Union
FREQUENTLY ASKED QUESTIONS
When is the Sputnik 8A91 | D-1 1 launch?
The Sputnik 8A91 | D-1 1 is scheduled for Sunday, April 27, 1958 at 7:00 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: FAILURE.
What rocket is being used for D-1 1?
The Sputnik 8A91 | D-1 1 mission uses the Sputnik 8A91 rocket, manufactured by Energia. The Sputnik 8A91 has flown 2 times with a 50% success rate.
Where is the Sputnik 8A91 | D-1 1 launching from?
The launch takes place from 1/5 at Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit is D-1 1 going to?
The D-1 1 mission is targeting Low Earth Orbit.
Who is launching D-1 1?
The Sputnik 8A91 | D-1 1 is operated by Soviet Space Program.
Can I watch the Sputnik 8A91 | D-1 1 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 20:12 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 20:12 UTC
Launch date set: Apr 27, 1958 at 07:00 UTC
NET (No Earlier Than) confirmed by Soviet Space Program
Mar 28, 2026 20:12 UTC
Launch failure reported
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 6 minutes ago
●Launch Library 26 minutes ago
Launch ID: 59d2de37-4c22-495f-8718-4b22f5f34ab7
●Open-Meteo Weather2 days ago
Pad weather at 45.92, 63.34
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Mission Profile
D-1 1 was a Sputnik 8A91 mission operated by Soviet Space Program that lifted off from 1/5, Baikonur Cosmodrome, Republic of Kazakhstan on April 27, 1958. The flight carried its payload on a earth science mission to Low Earth Orbit. The launch ended in failure.