RADARSAT-1 is a Canadian Earth observation satellite launched on November 4, 1995. It was designed to monitor and collect data about the Earth's surface using synthetic aperture radar (SAR) technology. This allows it to capture images regardless of weather conditions or daylight, making it valuable for various applications, including environmental monitoring, agriculture, and disaster management. The satellite operated in a sun-synchronous orbit, providing consistent coverage of the Earth's surface. RADARSAT-1 played a crucial role in advancing remote sensing technology and contributed to numerous scientific studies and operational applications until its mission ended in 2013.