NATIONAL SPACE DEVELOPMENT AGENCY OF JAPAN
N-I | Kiku-4
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Sep 3, 1982 at 05:00 UTC
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MISSION OVERVIEW
Japanese satellite designed to test a number of spacecraft technologies
LAUNCH DETAILS
VEHICLE
N-IAGENCY
National Space Development Agency of Japan
MISSION
Kiku-4
MISSION TYPE
Technology
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
Osaki Launch Complex
LAUNCH SITE
Tanegashima Space Center, JapanCOUNTRY
JPN
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: de04be73-545c-404e-92ce-f94a07d86c3b
Reported date: Sep 3, 1982 at 05:00 UTC
Last synced: 19 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 — N-I →
MANUFACTURER
Mitsubishi Heavy Industries
FLIGHTS
7
SUCCESSES
6
SUCCESS RATE
85.7%
The N-I or N-1 was a derivative of the American Thor-Delta rocket, produced under licence in Japan. It used a Thor-ELT first stage, a Mitsubishi Heavy Industries-designed LE-3 engine was used as a second stage, and three Castor SRMs. Seven were launched between 1975 and 1982, before it was replaced by the N-II.
FREQUENTLY ASKED QUESTIONS
When is the N-I | Kiku-4 launch?
The N-I | Kiku-4 is scheduled for Friday, September 3, 1982 at 5:00 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 Kiku-4?
The N-I | Kiku-4 mission uses the N-I rocket, manufactured by Mitsubishi Heavy Industries. The N-I has flown 7 times with a 85.7% success rate.
Where is the N-I | Kiku-4 launching from?
The launch takes place from Osaki Launch Complex at Tanegashima Space Center, Japan.
What orbit is Kiku-4 going to?
The Kiku-4 mission is targeting Low Earth Orbit.
Who is launching Kiku-4?
The N-I | Kiku-4 is operated by National Space Development Agency of Japan.
Can I watch the N-I | Kiku-4 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 29, 2026 23:44 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 23:44 UTC
Launch date set: Sep 3, 1982 at 05:00 UTC
NET (No Earlier Than) confirmed by National Space Development Agency of Japan
Mar 29, 2026 23:44 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 19 minutes ago
●Launch Library 219 minutes ago
Launch ID: de04be73-545c-404e-92ce-f94a07d86c3b
●Open-Meteo Weather1 week ago
Pad weather at 30.4, 130.97
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Mission Profile
Kiku-4 was a N-I mission operated by National Space Development Agency of Japan that lifted off from Osaki Launch Complex, Tanegashima Space Center, Japan on September 3, 1982. The flight carried its payload on a technology mission to Low Earth Orbit. The launch was a success.