China Siwei Surveying and Mapping Technology Co. Ltd. (China Siwei) is a subsidiary of the China Aerospace Science and Technology Corporation (CASC), is a leading operator of Earth observation satellites in China. The company is specialized in providing Earth Observation data through its advance satellite constellation named Gaojing (SuperView) and Siwei Gaojing (SuperView Neo) Series. The satellites are designed for high-resolution imaging for various applications. Siwei Gaojing constellation is a key component of Chinese commercial and civilian remote sensing capabilities, aiming to complete with global leaders, such as Maxar and Airbus.
Overview China Siwei operates 14 satellites under Gaojing and Siewi Gaojing constellation and planned to add 18 more satellites into its constellation. The Constellation is divided into three series: SuperView Neo-1, SuperView Neo-2 and SuperView Neo-3.
Launches NameSATCATLaunch date (UTC)Launch vehicleLaunch site Orbital apsisInclinationPeriod (min)Status Gaojing-1 01 (SuperView-1 01)4190728 December 2016Long March 2DTaiyuan, LC-9Gaojing-1 02 (SuperView-1 02) 41908Gaojing-1 03 (SuperView-1 03)430999 January 2018Gaojing-1 04 (SuperView-1 04) 43100Siwei Gaojing-1 01 (SuperView Neo-1 01)5232029 April 2022Long March 2CJiuquan, SLS-2Siwei Gaojing-1 02 (SuperView Neo-1 02)52322Siwei Gaojing-2 01 (SuperView Neo-2 01)5312815 July 2022Taiyuan, LC-9 Siwei Gaojing-2 02 (SuperView Neo-2 02) 53130Siwei Gaojing-3 01 (SuperView Neo-3 01)5951015 April 2024Long March 2DJiuquan, SLS-2 Siwei Gaojing-2 03 (SuperView Neo-2 03)6207924 November 2024Long March 2CSiwei Gaojing-2 04 (SuperView Neo-2 04) 62080Siwei Gaojing-1 03 (SuperView Neo-1 03)6312527 February 2025 Siwei Gaojing-1 04 (SuperView Neo-1 04)63126Siwei Gaojing-3 02 (SuperView Neo-3 02)6320815 February 2025Long March 2D
Challenges and development The SuperView-1 01 and 02 launch faced challenges due to an incorrect orbital insertion, requiring significant propellant use to correct its position and become operational, potentially shortening the satellites' operational lifespan. Despite this, the constellation has grown steadily, with successful launch in subsequent years. The introduction of autonomous "Self-driving" satellite in 2024 marks a significant technology advancement.
See also China High-resolution Earth Observation System (CHEOS) - Broader framework for Chinese remote sensing satellites Gaofen - Chinese State-Owned High-resolution Earth Observation Program. Jilin-1 - Another Chinese Commercial Satellite Constellation for Earth Observation
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