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日月潭、新竹科学园区等拍得一清二楚!“吉林一号”有啥来头
Nan Fang Du Shi Bao· 2025-10-31 17:41
Core Insights - The "Jilin-1" satellite constellation, consisting of 141 satellites, is capable of capturing high-resolution images of Earth and has recently gained attention for its images of Taiwan on the anniversary of Taiwan's recovery [3][5][6] - The constellation can observe any location on Earth 38 to 40 times daily, with a global coverage capability of once per day by 2027, aiming to expand to 300 satellites [8][9] - "Jilin-1" is China's first independently developed commercial remote sensing satellite constellation, providing high-quality remote sensing information for various sectors including national security and environmental monitoring [9][17] Satellite Capabilities - The "Jilin-1" satellites can achieve a spatial resolution of 0.5 meters, allowing for detailed observation of objects as small as 0.5 meters from an altitude of 500 kilometers [9][11] - The constellation includes different types of satellites: high-resolution, video, and spectral satellites, each serving specific applications such as disaster response and agricultural monitoring [13][15] - The highest resolution of "Jilin-1" can reach 0.2 meters, enabling the identification of individuals in a crowd from space [11] Technological Advancements - The satellite's design has undergone significant improvements, reducing weight from 400 kg to 20 kg and lowering production costs to one-twentieth of the original [17] - "Jilin-1" has demonstrated capabilities in "Non-Earth Imaging," allowing it to capture images of space targets, including the International Space Station and near-Earth asteroids [18][23] - The constellation's advanced imaging technology enables it to perform high-dynamic imaging, crucial for capturing fast-moving objects in space [23][25]