Japan launches a climate change monitoring satellite on mainstay H2A rocket’s last flight
- Japan launched its 50th and final H-2A rocket carrying the GOSAT-GW satellite on June 29, 2025, from Tanegashima Space Center.
- The H-2A rocket has served Japan for 24 years since 2001, but it is retiring to make way for the newer, lower-cost H3 rocket.
- The GOSAT-GW satellite separated at about 670 kilometers altitude, deployed solar panels, and will monitor greenhouse gases and water cycles.
- Keiji Suzuki, a Mitsubishi Heavy official, stated that the H-2A series has reached an important milestone by maintaining a 98 percent launch success rate.
- The final H-2A launch marks a shift to the H3 rocket, aiming to boost Japan's competitiveness with a lower launch cost and higher flight rate.
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Japan launches a climate change monitoring satellite on mainstay H2A rocket's last flight | The Asahi Shimbun Asia & Japan Watch
Japan on Sunday successfully launched a climate change monitoring satellite on its mainstay H-2A rocket, which made its final flight before it is replaced by a new flagship model designed to be more cost competitive in the global space market.
Final H-2A launches Earth science satellite
An H-2A rocket successfully launched an Earth science satellite June 28 on the final flight of a vehicle that had long been the workhorse for Japanese space access. The post Final H-2A launches Earth science satellite appeared first on SpaceNews.


Japan's final H2A rocket successfully lifts off, ends 24-yr career
Japan successfully launched its 50th and final H2A liquid-fuel rocket from a southwestern Japan island on Sunday, drawing the curtain on the series' 24-year career in support of the country's space development program. The H2A rocket, developed by Mitsubishi Heavy Industries Ltd. and the Japan Aerospace Exploration Agency, has been replaced as the country's mainstay space vehicle by the H3 rocket, which offers a lower launch service price. Read …
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