INSTITUTE OF SPACE AND ASTRONAUTICAL SCIENCE
Mu-4S | Shinsei
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Sep 28, 1971 at 04:00 UTC
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MISSION OVERVIEW
First Japanese scientific satellite to successfully reach orbit.
LAUNCH DETAILS
VEHICLE
Mu-4SMISSION
Shinsei
MISSION TYPE
Astrophysics
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
Mu CenterLAUNCH SITE
Uchinoura Space Center, JapanCOUNTRY
JPN
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: d2d115b8-e3f2-4f1e-b29a-d1bbbd700a32
Reported date: Sep 28, 1971 at 04:00 UTC
Last synced: 1 minute ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE — Mu-4S →
MANUFACTURER
Institute of Space and Astronautical Science
VARIANT
S
FLIGHTS
4
SUCCESSES
3
SUCCESS RATE
75%
The Mu, also known as M, was a series of Japanese solid-fuelled carrier rockets, which were launched from Uchinoura between 1966 and 2006. Originally developed by Japan's Institute of Space and Astronautical Science, Mu rockets were later operated by Japan Aerospace Exploration Agency following ISAS becoming part of it.
FREQUENTLY ASKED QUESTIONS
When is the Mu-4S | Shinsei launch?
The Mu-4S | Shinsei is scheduled for Tuesday, September 28, 1971 at 4:00 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Shinsei?
The Mu-4S | Shinsei mission uses the Mu-4S rocket, manufactured by Institute of Space and Astronautical Science. The Mu-4S has flown 4 times with a 75% success rate.
Where is the Mu-4S | Shinsei launching from?
The launch takes place from Mu Center at Uchinoura Space Center, Japan.
What orbit is Shinsei going to?
The Shinsei mission is targeting Low Earth Orbit.
Who is launching Shinsei?
The Mu-4S | Shinsei is operated by Institute of Space and Astronautical Science.
Can I watch the Mu-4S | Shinsei 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: Sep 28, 1971 at 04:00 UTC
NET (No Earlier Than) confirmed by Institute of Space and Astronautical Science
Mar 28, 2026 21:44 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 1 minute ago
●Launch Library 21 minute ago
Launch ID: d2d115b8-e3f2-4f1e-b29a-d1bbbd700a32
●Open-Meteo Weather2 days ago
Pad weather at 31.25, 131.08
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Mission Profile
Shinsei was a Mu-4S mission operated by Institute of Space and Astronautical Science that lifted off from Mu Center, Uchinoura Space Center, Japan on September 28, 1971. The flight carried its payload on a astrophysics mission to Low Earth Orbit. The launch was a success.