June 29, 2025 (JST)

Japan Aerospace Exploration Agency

 The Global Observing SATellite for Greenhouse gases and Water cycle "IBUKI GW" (GOSAT-GW) was successfully launched on the H-IIA Launch Vehicle No. 50 from the Tanegashima Space Center at 1:33:03 on June 29, 2025 (JST).
 The full deployment of its solar array paddles was confirmed by telemetry data received from "IBUKI GW" (GOSAT-GW) at the JAXA Mingenew Station in Australia at 1:51 on the same day (JST).
 Following this, telemetry data from "IBUKI GW" (GOSAT-GW) was received at the Troll　Satellite Station in Antarctica at 2:12 (JST), and it was confirmed that "IBUKI GW" (GOSAT-GW) is now in nominal condition with Sun Acquisition Mode.

 JAXA will continue to work together with the prime contractor, Mitsubishi Electric Corporation, and other companies and organizations involved in satellite operation.

● For details on the operational status of "IBUKI GW" (GOSAT-GW), please refer to the following: Space Technology Directorate I Website (Satellite Navigator)

■ Next Press Release (TBD)
5:30 on June 29, 2025 (JST)
“Images of "IBUKI GW" (GOSAT-GW) Solar Array Paddles Deployment”
* Scheduled to be posted on Satellite Navigator
* Please note that posting times may change depending on operational conditions.

Press conference on Launch progress of the Global Observing SATellite for Greenhouse gases and Water cycle "IBUKI GW" (GOSAT-GW) / H-IIA Launch Vehicle No. 50 (JAXA Channel) External link