Images of “IBUKI GW” (GOSAT-GW) AMSR3 Antenna Deployment

The Japan Aerospace Exploration Agency (JAXA) confirmed that the AMSR3^*1 antenna deployment^*2 was successfully performed by receiving telemetry from the Global Observing SATellite for Greenhouse gases and Water cycle “IBUKI GW” (GOSAT-GW). The following is actual photo of the AMSR3 antenna received at the Kiruna Station in Sweden on June 30 2025 at 14:57 (JST).

＜AMSR3 Antenna Images＞

(This image data was acquired using test signals for communication link verification between “IBUKI GW” and the ground station.)

*1: Advanced Microwave Scanning Radiometer 3 (AMSR3)
AMSR3 is a sensor designed to measure weak microwaves emitted from the land surfaces and in the atmosphere.

*2: AMSR3 antenna deployment
The AMSR 3 antenna stowed in the satellite main body is deployed.

<Movie of AMSR3 antenna deployment / AMSR3 sensor unit release>
▶ “GOSAT-GW”CG movie
https://www.youtube.com/watch?v=Cf_wCnlqGwM&t=27s

<Conceptual Diagram of AMSR3 Antenna Deployment>

<Conceptual Diagram of AMSR3 Antenna by Deployment Confirmation Monitoring Camera>

Mitsubishi Electric Corporation is in charge of design and manufacturing as the prime contractor, and is supporting the initial operations conducted by JAXA.

[Related Site]
Mitsubishi Electric Corporation Space Systems “Global Observing SATellite for Greenhouse gases and Water cycle “IBUKI GW” (GOSAT-GW) “
https://www.mitsubishielectric.com/bu/space/satellite/observation/index.html#no04

JAXA Space Technology Directorate 1 Satellite Navigator “IBUKI GW” (GOSAT-GW)
Ihttps://www.satnavi.jaxa.jp/files/project/gosat-gw/en/