News

Japan Aerospace Exploration Agency - The Global Observing SATellite for Greenhouse gases and Water cycle “IBUKI GW” (GOSAT-GW)^*1 was successfully launched on June 29, 2025 (Japan Standard Time) and entered its nominal operational orbit on July 20. Antenna of the Advanced Microwave Scanning Radiometer 3 (AMSR3)^*2, which is one of mission payloads, was set to rotate at a speed of 40 revolutions per minute to ensure stable observations, and AMSR3 started collecting observation data^*3 as part of the satellite’s initial functional verification operations activity^*4 since August 11.

NIES - The Greenhouse Gases and Water Cycle Observing Satellite "IBUKI GW" (GOSAT-GW), jointly developed by the Ministry of the Environment, the National Institute for Environmental Studies, and the Japan Aerospace Exploration Agency, was launched on June 29, 2025, and is currently undergoing initial functional verification operations. The first observations were conducted by the onboard Greenhouse Gases Observing Sensor-3 (TANSO-3) from July 14 to July 20, and it was confirmed that TANSO-3 was operating normally.

space.com Japan launched a dual-purpose satellite to monitor sea temperature and greenhouse gases.

The Japan Aerospace Exploration Agency (JAXA) on Saturday (June 28) conducted its 50th and final launch of the H-2A rocket, taking the GOSAT-GW dual-purpose satellite to space. The mission lifted off from Yoshinobu Launch Complex (LP-1) at the Tenegashima Space Center in Japan at 12:33 p.m. EDT (1633 GMT; 1:33 a.m. June 29, local time in Japan).

Japan News - To enhance the observation of greenhouse gases from space, the Japanese government will launch a new satellite in June—GOSAT-GW, the third in its series, is capable of performing observations across a plane rather than the current method of observing each point and this makes it possible to survey the Earth’s entire surface within three days.