## Mitsubishi Electric Unveils Daichi-4 Satellite for Disaster Prevention and Earth Observation
Mitsubishi Electric Corp. unveiled its new Earth observation satellite, Daichi-4, to the media in Kamakura, Kanagawa Prefecture, on March 11. This advanced satellite will utilize cutting-edge radar technology to monitor the Earth's surface for disaster prevention and enhance understanding of disaster-stricken areas.
Daichi-4 is designed to observe a ground surface four times wider than its predecessor, Daichi-2, currently in operation. This improvement will enable more frequent observations and the collection of more precise information. The satellite will play a crucial role in monitoring volcanic activity, ground subsidence, and assessing the impact of disasters, such as building damage and flooding.
"We hope the satellite will contribute to the realization of a safe, secure and comfortable society," said Katsuya Sakai, deputy head of Mitsubishi Electric's Space Systems division.
Mitsubishi Electric developed and manufactured Daichi-4 over eight years after receiving an order from the Japan Aerospace Exploration Agency. The satellite weighs around 3 tons and spans 20 meters in width when its solar panels and other equipment are extended. The total development cost, including ground facilities, amounts to 32 billion yen ($217 million).
The company aims to launch Daichi-4 aboard the H-3 rocket in fiscal 2024. This launch will mark a significant step forward in Japan's Earth observation capabilities and contribute to disaster preparedness and mitigation efforts.