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H3 Rocket Launch Fails, Delaying QZS-5 Satellite Deployment

12/24/2025

47 10 Full Breakdown

Summary

Story summary

On December 22, 2025, the H3 rocket failed to launch the QZS-5 satellite after the second-stage engine terminated prematurely, per the Japan Aerospace Exploration Agency (JAXA).
The failure prevents deployment of the sixth satellite in the seven-satellite Michibiki system.
The liftoff occurred at 10:51 a.m. JST from Tanegashima.
A follow-up launch for the seventh satellite is planned for February 1, 2026.

History

Historical Context

In 2003, Japan's H-IIA rocket failed during its launch, resulting in the loss of the ADEOS-II satellite, marking a significant setback for the Japan Aerospace Exploration Agency (JAXA). This incident followed the H-IIA's initial success rate of 80%. The recent failure of the H3 rocket to launch the QZS-5 satellite underscores ongoing challenges in Japan's satellite deployment efforts, emphasizing the need for reliable launch systems.

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Story summary

On December 22, 2025, the H3 rocket failed to launch the QZS-5 satellite after the second-stage engine terminated prematurely, per the Japan Aerospace Exploration Agency (JAXA).
The failure prevents deployment of the sixth satellite in the seven-satellite Michibiki system.
The liftoff occurred at 10:51 a.m. JST from Tanegashima.
A follow-up launch for the seventh satellite is planned for February 1, 2026.

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