EO·Atlas
Shanghai Academy of Spaceflight Technology (SAST)
Compiled from public sources on 2026-06-10. Not independently verified by Shanghai Academy of Spaceflight Technology (SAST).
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Chinese state-owned spacecraft manufacturer under CASC; bus builder for DQ-1/DQ-2 missions carrying ACDL.
The Shanghai Academy of Spaceflight Technology (SAST) is a state-owned spacecraft manufacturer and research institution founded in 1961, headquartered in Shanghai. A subsidiary of the China Aerospace Science and Technology Corporation (CASC), SAST employs more than 19,700 staff across 21 affiliates and operates across satellite platforms, launch vehicles, and deep-space systems.[1]
In Earth observation, SAST serves as satellite prime contractor for the Daqi atmospheric monitoring missions. SAST built both the Daqi-1 (DQ-1, launched April 2022) and Daqi-2 (DQ-2, launched April 2026) satellites on the SAST-5000B bus.[2] The Atmospheric Carbon dioxide Detector (ACDL) instrument payload on these missions was developed by the Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences.[2]
Beyond atmospheric EO, SAST develops platform families for a range of civil and defense missions and contributes to Chinese launch vehicle programmes including Long March variants.[3]
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- [1]About SAST | Shanghai Academy of Spaceflight Technologyoperator marketing2026-06-10Founded 1961, HQ Shanghai, 19700+ employees, 21 affiliates, CASC subsidiary; launch vehicles, satellites, deep-space
- [2]Daqi-1/-2 (DQ-1/-2) - eoPortalagency doc2026-06-10SAST built DQ-1 (2022-04-15) and DQ-2 (2026-04-17) on SAST-5000B bus; ACDL instrument by SIOM/CAS
- [3]What is SAST? | New Space Economythird party2026-06-10CASC subsidiary, EO satellite platforms, Long March launch vehicles overview