The first self-developed 0.5-meter high-resolution commercial remote sensing satellite launched by China, Gaojing No.1, has begun to transmit images. The Hong Kong Convention and Exhibition Center and the Potala Palace in Tibet are clearly visible. Satellite will provide high-quality remote sensing satellite data and value-added services to users around the world, breaking the monopoly of high-resolution satellite remote sensing market.

The two satellites, numbered "Gaojing No. 01 Group", were launched by the Long March II carrier rocket at the Taiyuan Satellite Launch Center on December 28. As of January 10th, the satellite attitude orbit adjustment has been completed, and the ground system has successfully received and processed 15 tracks of 1241 scenes in the world, marking the officially fully developed 0.5-meter high-resolution commercial remote sensing satellite constellation in China. Operational capability.

With the introduction of a series of policies encouraging the development of commercial aerospace, China Aerospace Science and Technology Corporation launched the commercial remote sensing satellite constellation project in 2015. The constellation consists of 16 0.5-meter resolution optical satellites, 4 high-end optical satellites, 4 radar satellites, and several small satellites such as video and hyperspectral.

Two satellites in the Gaojing No. 1 01 group are the first step in the network of this series of remote sensing satellites. The satellite was developed by the Five Institutes of Aerospace Science and Technology Corporation. After the satellite successfully operated in orbit, it was commercialized by China 4D Surveying and Mapping Technology Co., Ltd., a subsidiary of Aerospace Science and Technology Corporation.

"Popularly speaking, the 0.5-meter resolution can distinguish the difference between ordinary cars and station wagons on the ground in space." Zhang Xiaomin, deputy general manager of Aerospace Science and Technology Group Corporation's five-ship Aerospace Oriental Red Satellite Co., Ltd. said.

Xu Wen, general manager of China 4D Surveying and Mapping Technology Co., Ltd., said that in 2017, the two groups of the 02 satellites of this constellation will also be in orbit. At that time, the first batch of 4 satellites will be networked, with a daily collection capacity of 3 million square kilometers, and will be covered once in three major cities in China (Beijing, Shanghai, Guangzhou, Shenzhen, Tianjin, Chongqing, Shenyang, Chengdu, Xi'an, Wuhan). Ability.

After the completion of the "16+4+4+X" complete constellation around 2022, its daily collection capacity will reach 12 million square kilometers, achieving the ability of one of the top ten cities in China to cover once a day.

According to reports, the single satellite of Gaojing No. 1 weighs about 500 kilograms, with a full-color resolution of 0.5 meters, a multi-spectral resolution of 2 meters and an orbital height of 500 kilometers. It has a width of 12 kilometers and has multiple imaging modes such as continuous strip, multiple strip stitching, multi-target and stereo.

The official operation of Gaojing No.1 will provide global users with remote sensing data and its value-added application services, as well as application system solutions, with high space, high time, high spectral resolution and all-weather Earth observation capability. The service targets cover many traditional industries such as surveying and mapping, land and resources survey, urban construction, agriculture, forestry and water conservancy, geology and mineral resources, environmental monitoring, national defense security and emergency disaster reduction. In the emerging industries such as the Internet, location services, smart cities, and financial insurance, it also has great potential for application. Through integration with emerging technologies such as mobile Internet, navigation and positioning, intelligent terminals and virtual reality, it will effectively promote the integration of Chinese remote sensing technology into government management. , enterprise production and public life.

Concerned about surprises

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