Images of “IBUKI GW” (GOSAT-GW) AMSR3 Initial Run-up

The Japan Aerospace Exploration Agency (JAXA) confirmed that the AMSR3 initial run-up^*1 was successfully performed by receiving telemetry from the Global Observing SATellite for Greenhouse gases and Water cycle “IBUKI GW” (GOSAT-GW).

The following are images of the initial run-up received at the Kiruna Station in Sweden on June 30 2025 at 19:45 (JST).

<AMSR3 Images During Initial Run-Up>

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

*1: AMSR3 Initial Run-up
After the sensor unit release, the antenna drive mechanism of AMSR3 is slowly rotated to confirm that the angular momentum reaches the set target value.

<Movie of AMSR3 Initial Run-up>
▶ “GOSAT-GW”CG movie
https://youtu.be/Cf_wCnlqGwM?si=NgjwZOjGpyPpKGUr&t=60

<CAD data of AMSR3 Initial Run-up>
(AMSR3 rotates counter-clockwise when viewed from the -Z direction of the satellite.)

<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)
https://www.satnavi.jaxa.jp/files/project/gosat-gw/en/