ALOS-4 (Advanced Earth Observation Satellite) launched by Japan using its new Flagship H3 Rocket

Japan launched an advanced Earth observation satellite, ALOS-4, using its new flagship H3 rocket from the Tanegashima Space Center

Initially scheduled for Sunday, the launch was delayed due to adverse weather conditions but proceeded smoothly on Monday. Following its liftoff, the H3 No. 3 rocket released the ALOS-4 payload into orbit approximately 16 minutes later as planned. Developed by the Japan Aerospace Exploration Agency (JAXA), ALOS-4 is designed to enhance Earth observation capabilities for disaster response, mapmaking, and military surveillance. It features an infrared sensor developed by Japan’s Defense Ministry, enabling it to monitor activities like missile launches.

ALOS-4 succeeds the ALOS-2 satellite and offers expanded observation coverage compared to its predecessor. Both satellites will operate concurrently to bolster Japan’s Earth observation capabilities. The H3 rocket system, managed by JAXA and Mitsubishi Heavy Industries (MHI), aims to replace the retiring H-2A launcher and establish a competitive edge in commercial space transport. Following a successful launch in February and a failed attempt, Japan’s space program prioritizes stability and cost efficiency, with MHI expected to take over H3 production and operations from JAXA. This launch underscores Japan’s commitment to advancing its space capabilities for national security and commercial viability, marking another milestone in its exploration endeavors.