.
This launch marks the third mission for the H3 rocket, jointly developed by the Japan Aerospace Exploration Agency (JAXA) and Mitsubishi Heavy Industries.
The H3 rocket, launched from the Tanegashima Space Center, flew smoothly along the designated trajectory, and the satellite was deployed into space approximately 16 minutes and 34 seconds after liftoff.
The satellite, equipped with a phased-array L-band SAR radar "PALSAR-3," will perform Earth observation missions.
The first launch of the H3 rocket in March 2023 failed due to a problem with the second stage engine, but it successfully entered orbit on its second launch in February 2024.
This third mission is considered a success that overcame these technical challenges.
The ALOS-4 satellite, also known as Daichi-4, is the successor to Daichi-2, which was launched in 2014.
The original successor satellite, Daichi-3, was lost in the first launch failure in 2023, and approximately 32 billion yen was invested to supplement it with Daichi-4, which headed to space with this launch.
The H3 rocket is a two-stage liquid-fuel rocket with a length of 63 meters and a weight of 574 tons, equipped with the new LE-9 engine, which has 40% more thrust than the previous H2A rocket.
By significantly reducing the preparation period for launches, it can launch up to six times a year, with each launch costing about 5 billion yen, half the price of the H2A rocket.
To reduce costs, the rocket minimized the number of components and actively utilized commercial off-the-shelf parts, incorporating 3D printer technology.
Additionally, it is designed to adjust thrust according to the payload, allowing it to perform a variety of missions.
The H3 rocket is designed not only for satellite launches but also to transport cargo to the "Gateway," a lunar orbital outpost for NASA's Artemis project.
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Japan successfully launched the high-performance SAR satellite "Advanced Land Observing Satellite-4" (ALOS-4) into space with it
This launch marks the third mission for the H3 rocket, jointly developed by the Japan Aerospace Exploration Agency (JAXA) and Mitsubishi Heavy Industries.The H
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