The Japan Aerospace Exploration Agency (JAXA) is the national space agency of Japan, established in 2003 through the merger of three organizations: the Institute of Space and Astronautical Science (ISAS), the National Aerospace Laboratory of Japan (NAL), and the National Space Development Agency of Japan (NASDA). JAXA plays a significant role in space science, satellite technology, Earth observation, planetary exploration, and remote sensing. Its missions have greatly contributed to scientific research, environmental monitoring, disaster management, communication, navigation, and international cooperation in space exploration. One of JAXA's most important Earth observation missions is the Advanced Land Observing Satellite (ALOS), also known as "Daichi," launched in 2006. It was designed to collect high-resolution images for cartography, regional observation, disaster monitoring, and resource surveying. ALOS carried three advanced sensors: the Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM), the Advanced Visible and Near Infrared Radiometer type-2 (AVNIR-2), and the Phased Array type L-band Synthetic Aperture Radar (PALSAR). These sensors enabled accurate mapping, forest monitoring, agricultural assessment, and observation under all weather conditions. Following the success of ALOS, JAXA launched ALOS-2 (Daichi-2) in 2014. It carries the advanced PALSAR-2 radar system, which provides high-resolution microwave imagery regardless of cloud cover or daylight. ALOS-2 is widely used for monitoring earthquakes, volcanic eruptions, landslides, floods, forest resources, and urban development. The mission plays a crucial role in disaster response and environmental conservation. Another major remote sensing mission is the Global Change Observation Mission (GCOM). It consists of GCOM-W and GCOM-C satellites. GCOM-W, launched in 2012, carries the Advanced Microwave Scanning Radiometer-2 (AMSR2), which measures water-related parameters such as sea surface temperature, soil moisture, precipitation,