Advanced Land Observing Satellite-4 “DAICHI-4” (ALOS-4) Phased Array type L-band Synthetic Aperture Radar-3 (PALSAR-3) Antenna after First Wing Deployment was successfully performed

The Japan Aerospace Exploration Agency (JAXA) confirmed that the first wing deployment^*１ of the Phased Array type L-band Synthetic Aperture Radar-3 (PALSAR-3)^*２ antenna was successfully performed by receiving telemetry from the Advanced Land Observing Satellite-4 “DAICHI-4” (ALOS-4) at the JAXA Katsuura station at 12:22 on July 2, 2024 (JST).
Although JAXA did not obtain the clear images of the deployed first wing, it was confirmed that the first wing deployment of PALSAR-3 was successfully performed.
Antenna deployment of PALSAR-3 is being conducted in three stages: 1) Package deployment, 2) First wing deployment (this announcement), and 3) Second wing deployment.

*1: First wing deployment
Deployment of the first wing of the PALSAR-3 antenna that had been folded up.

*2: L-band synthetic aperture radar (PALSAR-3)
The L-band synthetic aperture radar (PALSAR-3: Phased Array type L-band Synthetic Aperture Radar-3) is a sensor that obtains information by irradiating the earth’s surface with radio waves and receiving the radio waves reflected from the surface.

<Movie of DAICHI-4 PALSAR-3 Antenna First Wing Deployment>
▶ DAICHI-4 (ALOS-4) CG movie
https://www.youtube.com/watch?v=lzMONfjs-Ew

<Conceptual Diagram of the PALSAR-3 Antenna Deployment Sequence >

★ 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
https://www.mitsubishielectric.com/bu/space/index.html