印度与美国合作发射地球观测卫星

Core Viewpoint - The successful launch of the NISAR satellite, a collaboration between NASA and ISRO, marks a significant advancement in Earth observation technology, enabling detailed monitoring of the Earth's surface changes. Group 1: Satellite Launch Details - The NISAR satellite was launched on July 30 from the Satish Dhawan Space Centre in Sriharikota, Andhra Pradesh, India, and achieved orbit 18.5 minutes after liftoff [1] - This satellite is equipped with two radar systems, one developed by NASA and the other by ISRO, allowing for comprehensive Earth observation [1] Group 2: Observation Capabilities - NISAR can transmit and receive microwave signals regardless of day or night and is unaffected by weather conditions [1] - The satellite is designed to observe the Earth's surface, including land and ice, every six days, detecting changes as small as centimeters [1]