Group 1 - The Resource No. 04 satellite, developed by the Ministry of Natural Resources, enhances China's three-dimensional earth observation capabilities by forming a satellite constellation with Resource No. 02 and 03 satellites [1][3] - The satellite is equipped with three cameras that capture images from different angles, allowing for the creation of 3D images similar to 3D movies, thus improving the accuracy of land space planning and disaster assessment [1] - The satellite's three-dimensional imaging capability allows for direct land space planning and precise measurement of terrain features, which is beneficial for assessing geological disaster impacts [1] Group 2 - The successful launch of Resource No. 04 will complete the observation network of China's civilian high-resolution optical mapping satellites, further enhancing the country's earth observation system [3] - The satellite constellation enables quicker emergency response capabilities, allowing for timely imaging of disaster areas, such as flood zones, by providing daily satellite passes instead of every three days with a dual-satellite network [5]

Core Viewpoint - The successful launch of the Resource 3-04 satellite marks a significant advancement in China's capability for high-resolution optical stereoscopic mapping, enhancing the operational efficiency of the national satellite constellation for civil surveying and resource management [1][4]. Group 1: Satellite Development and Capabilities - Resource 3-04 is the fourth satellite in the Resource 3 series, designed to improve high-resolution stereoscopic mapping capabilities, inheriting and optimizing technologies from its predecessors [4]. - The Resource 3 series, including satellites 01, 02, and 03, has established China as one of the few countries with complete satellite mapping technology, transitioning from reliance on foreign satellites to domestic capabilities [1][3]. - The satellites collectively provide high-precision data for various applications, including natural resource management, emergency monitoring, and urban planning, significantly enhancing the country's spatial information capabilities [3][5]. Group 2: Operational Efficiency and Data Acquisition - The Resource 3-04 satellite, when networked with Resource 3-02 and 03, reduces the revisit cycle from 3 days to 1 day, improving emergency monitoring capabilities [5]. - As of December 2025, the Resource 3 series has acquired 4.03 million effective images, covering an area of 137 million square kilometers, which is approximately 91% of the global land area [3]. - The satellites support the production of high-resolution stereoscopic images and multi-spectral images, facilitating the creation of digital elevation models and enhancing the accuracy of geographic information products [2][3].