# H-IIA 202 | GOSAT-GW (Ibuki GW): launch

> H-IIA 202 by Japan Aerospace Exploration Agency from Tanegashima Space Center, Japan. Flown: Success.

- Canonical page: https://spacenexus.us/launch/cmtdf1dkh00v9oqhxi8ir0e0f
- This Markdown version: https://spacenexus.us/launch/cmtdf1dkh00v9oqhxi8ir0e0f.md
- Data as of: 2026-10-20 00:45 UTC (last Launch Library 2 sync)
- How the numbers are made: https://spacenexus.us/launch-slips/method

## Facts

- Launch: H-IIA 202 | GOSAT-GW (Ibuki GW)
- Mission: GOSAT-GW (Ibuki GW)
- Provider: Japan Aerospace Exploration Agency
- Rocket: H-IIA 202
- Pad: Tanegashima Space Center, Japan
- Country of the launch site: JPN
- Date (UTC): Sat, Jun 28, 16:33 UTC (2025-06-28T16:33:03.000Z)
- Launch window: 2025-06-28 16:33 UTC to 2025-06-28 16:52 UTC
- Status: completed (Launch Library 2: Success)
- Outcome: Success
- Real slips recorded: 0; other date moves (placeholder rolls, firmings), not slips: 0

## Mission description

Quoted from Launch Library 2: GOSAT-GW (Greenhouse Gases Observing Satellite Greenhouse gases and Water cycle), also known as Ibuki GW and formerly known as GOSAT 3, is JAXA's next generation satellite to monitor the greenhosue gases like carbon dioxide in the Earth's atmosphere. It is the follow on to the GOSAT 2 (Ibuki 2) and GCOM-W (Shizuku) missions. GOSAT-GW will have two missions: greenhouse gases observation for Japan's Ministry of the Environment and the National Institute for Environmental Studies (NIES), and water-cycle observation for JAXA. By developing the GOSAT-GW satellite, Mitsubishi Electric will contribute to measures for preventing disasters attributed to global warming and climate change, and to advance scientific and technological methods that enable more accurate prediction of climate change. In December 2013, Mitsubishi Electric (MELCO) was selected as the prime contractor for the spacecraft and the instruments.

## Date history

No date change recorded for this launch since our ledger began.

## Sources

- [Launch Library 2 by The Space Devs](https://thespacedevs.com): launch names, providers, rockets, pads, dates and status
- [SpaceNexus Launch Ledger (our own record of every date change)](https://spacenexus.us/launch-slips/method)
- [Mission information (link from Launch Library 2)](https://www.spacelaunchnow.me/launch/h-iia-202-gosat-gw-ibuki-gw)

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