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GOSAT-GW (nicknamed “IBUKI GW”) was launched successfully from the Tanegashima Space Center in Kagoshima Prefecture on the H-IIA Launch Vehicle No. 50 at 1:33 a.m. on June 29, 2025 (JST), marking the final flight of the H-IIA.
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Photos by Seiji Narita (Public Relations Office, NIES)

Press release

• Aug. 8. 2025First observations by the Total Anthropogenic and Natural emissions mapping SpectrOmeter-3 (TANSO-3) onboard the Global Observing SATellite for Greenhouse gases and Water cycle “IBUKI GW” (GOSAT-GW).
  (NIES Website)
• Jul. 1. 2025 GOSAT-GW Successful Launch and Completion of Critical Operations Phase.
  (NIES Website)
• Apr. 25. 2025The launch date of GOSAT-GW unveiled. (in Japanese)

Publication

• Tanimoto et al. The greenhouse gas observation mission with Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW): objectives, conceptual framework and scientific contributions. Prog Earth Planet Sci 12, 8 (2025). (external link)
  
• Journal of the Remote Sensing Society of Japan. Volume 44, Number 2, 2024 Special Issue for GOSAT-GW TANSO-3 (in Japanese) (external link)

Brochures

Coming soon.