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Mitsubishi Heavy IndustriesLaunch FailureNavigationH3-22 · QZS-5
Launched 2025-12-22 01:51:30 UTCYoshinobu Launch Complex LP-2, Tanegashima Space Center, Japan
2nd stage liquid hydrogen tank pressure abnormally start decreasing after fairing separation, leading up to 2nd stage 1st burn 27 seconds longer than planned & engine shutting down 1 second into 2nd burn. Payload stranded in LEO and re-entered shortly after.
From Launch Library 2 · confirmed as a launch failure
Launch failure
Target: Geosynchronous Transfer Orbit
H3-22 lifted off with Michibiki 5 (QZS-5), but the launch failed.
Next
Waiting on the Cause
No cause has been given yet. What Mitsubishi Heavy Industries finds will be added here, and to the updates below.
Planned times, from liftoff at . The result is at the top of the page.
QZSS (Quasi Zenith Satellite System) is a Japanese satellite navigation system operating from inclined, elliptical geosynchronous orbits to achieve optimal high-elevation visibility in urban canyons and mountainous areas. The navigation system objective is to broadcast GPS-interoperable and augmentation signals as well as original Japanese (QZSS) signals from a three-spacecraft constellation.
The navigation system objective is to broadcast GPS-interoperable and augmentation signals as well as original Japanese (QZSS) signals from a three-spacecraft constellation in inclined, elliptical geosynchronous orbits.
Launch Provider
Commercial · Japan · Founded 1884 · President Seiji Izumisawa
Mitsubishi Heavy Industries, Ltd. is a Japanese multinational engineering, electrical equipment and electronics company headquartered in Tokyo, Japan. MHI is one of the core companies of the Mitsubishi Group. MHI's products include aerospace components, air conditioners, aircraft, automotive components, forklift trucks, hydraulic equipment, machine tools, missiles, power generation equipment, printing machines, ships and space launch vehicles. Through its defense-related activities, it is the world's 23rd-largest defense contractor measured by 2011 defense revenues and the largest based in Japan.
Launches
59
Successful
57
97%
Upcoming
12
scheduled
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Launch failure.
Cosmic_Penguin
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Official Webcast by JAXA | 宇宙航空研究開発機構 has started
Launch Library 2
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Liftoff.
Cosmic_Penguin
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Official Webcast by JAXA | 宇宙航空研究開発機構 has started
Launch Library 2
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Refined launch window.
Cosmic_Penguin
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Rescheduled for December 22.
Cosmic_Penguin
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Scrubbed for the day.
Cosmic_Penguin
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Hold at T-13 seconds.
Cosmic_Penguin
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Tweaked T-0.
Cosmic_Penguin
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Tweaked launch window.
Cosmic_Penguin
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Rescheduled for December 17.
Cosmic_Penguin
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Launch delayed due to problems with the Inertial Measurement Unit (IMU) on the H3 2nd stage, new launch date TBD.
Cosmic_Penguin
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GO for launch.
Cosmic_Penguin
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Tweaked approximate launch date per launch manifest (P.129 of source).
Cosmic_Penguin
Height
63m
Diameter
5.3m
Liftoff thrust
7,542kN
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ETS-9Mitsubishi Heavy Industries · H3-22 · Yoshinobu Launch Complex LP-2, Tanegashima Space Center, JapanGeostationary Transfer OrbitTo be determinedNET 2026
IGS Optical Diversification 1Mitsubishi Heavy Industries · H3-30 · Yoshinobu Launch Complex LP-2, Tanegashima Space Center, JapanSun-Synchronous OrbitTo be determinedTime TBD