“用卫星给地球拍CT”，长光卫星引领中国商业遥感卫星创新发展

Core Insights - Changguang Satellite Technology Co., Ltd. is leading a new era in global commercial remote sensing satellites with its "Jilin-1" satellite series, which has achieved significant advancements in satellite manufacturing and operational capabilities [1][2][3] Company Overview - Changguang Satellite is the first Chinese company to integrate satellite research and development, manufacturing, operational management, and remote sensing information services into a complete industrial chain [2] - The company successfully launched the first group of four "Jilin-1" satellites in October 2015, marking the beginning of China's commercial space era [2] Technological Advancements - The "Jilin-1" Wide-Field 01B satellite is currently the largest sub-meter optical remote sensing satellite in the world, with a width greater than 150 kilometers, allowing for high-resolution imaging of over 90% of cities in just one second [2] - The "Jilin-1" satellite series has made significant progress, with 117 satellites currently in orbit, establishing the largest sub-meter commercial remote sensing satellite network globally [2] - The manufacturing technology of the "Jilin-1" satellites has undergone multiple breakthroughs, reducing the weight from over 420 kilograms to 20 kilograms and decreasing the single satellite cost to one-twentieth of the original [3] Market Applications - The remote sensing information from the "Jilin-1" satellites has been utilized in over 150 categories across 14 fields, including agriculture, forestry, water resources, environmental protection, transportation, finance, natural resources, and urban construction, earning the nickname "CT scan for the Earth" [2]