我国第二代静止轨道气象卫星风云四号C星成功发射

Core Viewpoint - The successful launch of the Fengyun-4C satellite marks a significant advancement in China's meteorological capabilities, enhancing weather forecasting and disaster prevention efforts through high-precision data support [3][9]. Group 1: Satellite Launch and Purpose - The Fengyun-4C satellite was successfully launched on December 27, 2025, using the Long March 3B rocket from the Xichang Satellite Launch Center [3]. - It is part of China's long-term development plan for civil space infrastructure and serves as the second generation of geostationary meteorological satellites [3]. Group 2: Technological Advancements - Fengyun-4C features a new electric propulsion high-performance remote sensing platform, equipped with four different ground remote sensing instruments and two solar observation instruments, significantly enhancing its observational capabilities [7]. - The satellite's technical specifications have improved by 2 to 3 times compared to its predecessor, making it the most capable geostationary meteorological satellite globally [7]. Group 3: Observational Capabilities - The satellite includes advanced instruments such as a radiation imaging device that can detect atmospheric temperature changes to one-fiftieth of a degree Celsius and an interferometric infrared detector with improved spatial resolution [8]. - The lightning imaging device can capture 500 frames per second, capable of identifying lightning events from a data stream equivalent to 30 high-definition movies in one second [8]. Group 4: Network and Collaboration - With the successful launch of Fengyun-4C, China has now launched a total of 23 Fengyun meteorological satellites, enhancing its observational network for weather forecasting and disaster management [9]. - The satellite's inter-satellite collaboration capabilities will contribute to a "data highway" in space, promoting an innovative international meteorological observation system [9].