Global Observing Satellite for Greenhouse gases and Water cycle
Japanese Earth observation satellite
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Global Observing Satellite for Greenhouse gases and Water cycle (GOSAT-GW), also called Ibuki GW, is a Japanese Earth observation satellite for observing the global water cycle and greenhouse gas monitoring. It is a successor to the GCOM-W and the GOSAT-2 satellites. GOSAT-GW was jointly developed by the Japan Aerospace Exploration Agency (JAXA), Ministry of the Environment, and the National Institute for Environmental Studies (NIES). GOSAT-GW was launched on 28 June 2025, on the last launch of JAXA’s workhorse H-IIA rocket.[2]
Scale model of GOSAT-GW at Tsukuba Space Center Space Dome | |
| Names | Ibuki GW |
|---|---|
| Mission type | Environmental |
| Operator | JAXA |
| Website | www |
| Mission duration | 7 years (planned) |
| Spacecraft properties | |
| Manufacturer | Mitsubishi Electric |
| Power | 5.3 kilowatts[1] |
| Start of mission | |
| Launch date | 28 June 2025 16:33 UTC |
| Rocket | H-IIA-202 F50 |
| Launch site | Tanegashima, LA-Y1 |
| Contractor | Mitsubishi Heavy Industries |
| Orbital parameters | |
| Reference system | Geocentric |
| Regime | Low Earth |
| Instruments | |
| AMSR3 TANSO-3 | |
Overview
GOSAT-GW is a Japanese Earth observation satellite that was successfully launched on 28 June 2025. Unlike its predecessor GCOM-W, GOSAT-GW will not be placed in the A-train satellite constellation orbit.
