China Siwei
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)[1] 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
[edit]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,[2] SuperView Neo-2[3] and SuperView Neo-3.[4]
Launches
[edit]| Name | SATCAT | Launch date (UTC) | Launch vehicle | Launch site | Orbital apsis | Inclination | Period (min) | Status |
|---|---|---|---|---|---|---|---|---|
| Gaojing-1 01 (SuperView-1 01)[5] | 41907 | 28 December 2016 |
Long March 2D | Taiyuan, LC-9 | Operational | |||
| Gaojing-1 02 (SuperView-1 02)[6] | 41908 | Operational | ||||||
| Gaojing-1 03 (SuperView-1 03)[7] | 43099 | 9 January 2018 |
Operational | |||||
| Gaojing-1 04 (SuperView-1 04)[8] | 43100 | Operational | ||||||
| Siwei Gaojing-1 01 (SuperView Neo-1 01)[9] | 52320 | 29 April 2022 |
Long March 2C | Jiuquan, SLS-2 | Operational | |||
| Siwei Gaojing-1 02 (SuperView Neo-1 02) | 52322 | Operational | ||||||
| Siwei Gaojing-2 01 (SuperView Neo-2 01)[10] | 53128 | 15 July 2022 |
Taiyuan, LC-9 | Operational | ||||
| Siwei Gaojing-2 02 (SuperView Neo-2 02) | 53130 | Operational | ||||||
| Siwei Gaojing-3 01 (SuperView Neo-3 01)[11] | 59510 | 15 April 2024 |
Long March 2D | Jiuquan, SLS-2 | Operational | |||
| Siwei Gaojing-2 03 (SuperView Neo-2 03)[12] | 62079 | 24 November 2024 |
Long March 2C | Operational | ||||
| Siwei Gaojing-2 04 (SuperView Neo-2 04) | 62080 | Operational | ||||||
| Siwei Gaojing-1 03 (SuperView Neo-1 03)[13] | 63125 | 27 February 2025 |
Operational | |||||
| Siwei Gaojing-1 04 (SuperView Neo-1 04) | 63126 | Operational | ||||||
| Siwei Gaojing-3 02 (SuperView Neo-3 02)[14] | 63208 | 15 February 2025 |
Long March 2D | Operational |
Challenges and development
[edit]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.[15] 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.[16]
See also
[edit]- 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
References
[edit]- ^ "GaoJing / SuperView Earth Observation Constellation". EoPortal. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 1-01, ..., 16 (SuperView Neo 1-01, ..., 16)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 2-01, 02, 03, 04 (SuperView Neo 2-01, 02, 03, 04)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 3-01, ..., 08 (SuperView Neo 3-01, ..., 08)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "GaoJing-1 01, 02, 03, 04 (SuperView 1)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Chinese Earth observation satellites launched into lower-than-planned orbit". Spaceflight Now. Retrieved 1 March 2025.
- ^ "GaoJing-1 01, 02, 03, 04 (SuperView 1)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Second SuperView satellite pair launched from China". Spaceflight Now. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 1-01, ..., 16 (SuperView Neo 1-01, ..., 16)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 2-01, 02, 03, 04 (SuperView Neo 2-01, 02, 03, 04)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 3-01, ..., 08 (SuperView Neo 3-01, ..., 08)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 2-01, 02, 03, 04 (SuperView Neo 2-01, 02, 03, 04)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 1-01, ..., 16 (SuperView Neo 1-01, ..., 16)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Siwei Gaojing 3-01, ..., 08 (SuperView Neo 3-01, ..., 08)". Gunter's Space Page. Retrieved 1 March 2025.
- ^ "Chinese Earth observation satellites launched into lower-than-planned orbit". Spaceflight Now. Retrieved 1 March 2025.
- ^ "China launches world's first 'self-driving' satellites for military surveillance". Interesting Engineering. Retrieved 1 March 2025.
