小卫星星座已具规模 “云遥一号”系列卫星预计明年底前发射90颗

Core Viewpoint - The successful launch of the YunYao-1 27 satellite and the Aishen star retention test platform marks a significant step in China's efforts to establish a global satellite network, with plans to complete the launch of 90 satellites by the end of 2026 [1][3]. Group 1: Satellite Launch and Functionality - The YunYao-1 27 satellite is equipped with remote sensing devices to receive global navigation satellite system signals for atmospheric parameter inversion, aimed at providing data support for atmospheric detection [3]. - As of this launch, a total of 46 satellites from the YunYao-1 series are already in orbit, contributing to the planned global network [3]. Group 2: Development of Commercial Meteorological Small Satellites - The China Meteorological Administration (CMA) has introduced measures to promote the orderly development and deep application of commercial meteorological small satellites, emphasizing their role in disaster prevention and weather forecasting [6][8]. - The CMA's guidance aims to align commercial satellite development with meteorological business needs, fostering a complementary relationship with the Fengyun meteorological satellites [8]. Group 3: Technological Advancements and Applications - The commercial meteorological small satellites are characterized by their short development cycles, low costs, and flexible launch methods, enhancing the spatial and temporal resolution of observations when networked [14]. - The Tianmu and YunYao satellite constellations have begun to take shape, with the CMA establishing a working group to advance the application of occultation meteorological detection data in numerical weather prediction and typhoon monitoring [16]. Group 4: Data Integration and Utilization - The occultation atmospheric profile products generated by the satellite constellations are integrated into the CMA's meteorological big data cloud platform, supporting various meteorological services including numerical forecasting and climate change analysis [18].