“风云家族”上“星” 太空“气象哨兵”再升级

Core Viewpoint - The successful launch of the Fengyun-4C satellite enhances China's meteorological capabilities, particularly in short-term weather forecasting and space weather monitoring [1][3]. Group 1: Launch Details - The Fengyun-4C satellite was launched on December 27 using the Long March 3B rocket from the Xichang Satellite Launch Center, marking the 621st flight of the Long March series [3]. - This satellite is the 23rd in the Fengyun meteorological satellite family and is designed to operate in a geostationary orbit 36,000 kilometers above the equator, providing continuous monitoring of nearly one-third of the Earth's surface [3][4]. Group 2: Technological Advancements - Fengyun-4C features significant upgrades in observational capabilities, achieving 2 to 3 times the technical specifications compared to its predecessor, Fengyun-4B, making it the most advanced geostationary meteorological satellite globally [4]. - The satellite is equipped with four advanced remote sensing instruments and two solar observation instruments, enhancing its ability to monitor atmospheric conditions and solar activity [4][5]. Group 3: Power and Efficiency - The power system of Fengyun-4C has been upgraded, with solar panels increasing in area by over 20% and improving power generation by approximately 26% due to higher efficiency solar cells [5]. - The satellite's battery capacity has been expanded by 50% using next-generation high-energy lithium batteries to meet its increased power demands [5]. Group 4: Future Developments - The launch of Fengyun-4C will contribute to a more efficient observational network alongside previous satellites, improving China's capabilities in weather forecasting, disaster prevention, and ecological monitoring [5]. - Future plans include launching additional geostationary and low-orbit meteorological satellites to establish a comprehensive space-based meteorological observation system [5].