MITSUBISHI HEAVY INDUSTRIES

H-1 | Ajisai

SUCCESS H-1 →
Aug 12, 1986 at 20:45 UTC
Low Earth Orbit Earth Science Tanegashima Space Center, Japan 100% success
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PADOsaki Launch Complex
SITETanegashima Space Center, Japan →
ORBITLow Earth Orbit
TYPEEarth Science

Japanese geodesy satellite used to test the H-1 launch vehicle

VEHICLE
H-1
MISSION
Ajisai
MISSION TYPE
Earth Science
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
Osaki Launch Complex
COUNTRY
JPN
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: e65b3a59-0494-4946-9886-f520689455e2
Reported date: Aug 12, 1986 at 20:45 UTC
Last synced: 2 minutes ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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MANUFACTURER
Mitsubishi Heavy Industries
VARIANT
I
FLIGHTS
9
SUCCESSES
9
SUCCESS RATE
100%

The H-1 was a Japanese liquid-fuelled carrier rocket, consisting of a license-produced American First Stage and set of booster rockets and all-Japanese upper stages. It replaced the N-II and was subsequently replaced by the H-2 which has the same upper stages with a Japaense first stage.

When is the H-1 | Ajisai launch?
The H-1 | Ajisai is scheduled for Tuesday, August 12, 1986 at 8:45 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 Ajisai?
The H-1 | Ajisai mission uses the H-1 rocket, manufactured by Mitsubishi Heavy Industries. The H-1 has flown 9 times with a 100% success rate.
Where is the H-1 | Ajisai launching from?
The launch takes place from Osaki Launch Complex at Tanegashima Space Center, Japan.
What orbit is Ajisai going to?
The Ajisai mission is targeting Low Earth Orbit.
Who is launching Ajisai?
The H-1 | Ajisai is operated by Mitsubishi Heavy Industries.
Can I watch the H-1 | Ajisai 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.
Mar 29, 2026 05:33 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 29, 2026 05:33 UTC
Launch date set: Aug 12, 1986 at 20:45 UTC
NET (No Earlier Than) confirmed by Mitsubishi Heavy Industries
Mar 29, 2026 05:33 UTC
Launch completed successfully
Updated via Launch Library 2
Last data sync: 2 minutes ago
Launch Library 22 minutes ago
Launch ID: e65b3a59-0494-4946-9886-f520689455e2
Open-Meteo Weather22 hours ago
Pad weather at 30.4, 130.97

Mission Profile

Ajisai was a H-1 I mission operated by Mitsubishi Heavy Industries that lifted off from Osaki Launch Complex, Tanegashima Space Center, Japan on August 12, 1986. The flight carried its payload on a earth science mission to Low Earth Orbit. The launch was a success.