Purple Mountain Observatory
Profile
| Official Chinese name | 中国科学院紫金山天文台 |
|---|---|
| Official English name | Purple Mountain Observatory, Chinese Academy of Sciences |
| Chinese aliases | 紫台, 国立中央研究院天文研究所 |
| English aliases | Institute of Astronomy of the Academia Sinica |
| Acronyms | PMO |
| Research fields | Dark matter and space astronomy, Antarctic astronomy and radio astronomy, planetary science and deep space exploration, high-energy astrophysics, solar physics and space astronomical exploration technology, research on star formation through the universe and corresponding terahertz technology, artificial satellite orbital dynamics and probing methods, planetary science, ephemeral astronomy and deep space exploration, observational cosmology and galaxy formation |
| Total employee count | 403 (as of the end of 2024) |
Summary
Purple Mountain Observatory is categorised as a Limited Defence Partner based on the following indicators:
- Defence advisor
- 1 indicator
- Defence award
- 2 indicators
- Defence funding
- 2 indicators
- Defence laboratory
- 1 indicators
- Military-technology patent
- 1 indicators
- Research collaboration with defence entities
- 3 indicators
A limited defence partner contributes to the development of China’s defence capabilities in ways that are limited in time, frequency, scope or scale. Evidence indicates that participation has either ceased or if it persists, it is narrow in scope, not institutionalised and occurs through isolated or infrequent activities led by individual researchers, rather than through sustained programmes or organisational commitments.
Rules-based framework
| Rule | Resulting category |
|---|---|
| Two or more indicators = 4 | Core defence partner |
| One indicator = 4 and two indicators = 3 or Three or more indicators = 3 | Regular defence partner |
| One indicator = 4 and one indicator = 3 and all other indicators = 1 or 2 or Two indicators = 3 and all other indicators = 1 or 2 | Limited defence partner |
| All indicators between 0 and 2 | Civilian institute |
| Three or more indicators = 0 | Insufficient data |
Note: All indicators operate on a 0 to 4 scale. There are a total of six indicators.
For more information on the graded scales see the user guide.
Defence advisory roles
Members of the leadership of Purple Mountain Observatory have probably not served on defence-related expert committees before 2023. Because the available data are somewhat outdated, the assessment is made with medium confidence, particularly with respect to more recent activity.
Defence awards
Available information indicates that researchers affiliated with the Purple Mountain Observatory have received at least four separate defence awards over time. These include one Military Science and Technology Progress Award, one Jiangsu Most Beautiful Science and Technology Worker Award, and two titles of Outstanding Contributor to the Chang'e-2 Mission.[1]
The dates of all four awards confirmed that they were granted while the recipients were employed at Purple Mountain Observatory.[2]
The identified awards were granted between 2007 and 2022. However, only one of these awards was granted in recent years: the 2022 Most Beautiful Science and Technology Worker Award.[3]
Researchers and projects at Purple Mountain Observatory have probably received one defence award since 2021. However, because the underlying data are incomplete, this assessment is made with medium confidence. Awards granted to individuals not surveyed cannot be fully ruled out.
Defence funding
Between 2021 and 2025, researchers from the Purple Mountain Observatory authored three publications funded by Chinese defence entities, placing the institute in the 4th percentile among the CAS institutes included in this analysis. Of the 1,192 authors affiliated with the Purple Mountain Observatory who published during this period, four (<1 per cent) had at least one defence-funded publication. However, it is not possible to attribute specific funding to individual researchers based solely on publication data.
Defence laboratories
No publicly available information suggests that this institute hosts or is affiliated with any known defence laboratories. The Chinese language laboratory websites do not mention any links or references to defence-related activities.
Military-technology patents
Between 2021 and 2025, the Purple Mountain Observatory was not granted any military-technology patents. This places it at the very bottom (0th percentile) among the CAS institutes included in this analysis. No inventors from the Purple Mountain Observatory were listed on any military-technology patents during this period.
Research collaboration with defence entities
Between 2021 and 2025, researchers from the Purple Mountain Observatory co-authored 197 publications with at least one Chinese defence entity, placing the institute in the 22nd percentile among the CAS institutes included in this analysis.
These collaborations include 4 publications with PLA academic institutions, 148 with defence laboratories, 47 with members of the Seven Sons of National Defence and 14 with members of the Seven Sons of Ordnance Industry.
Of the 1,192 authors affiliated with the Purple Mountain Observatory who published during this period, 232 (19 per cent) had at least one defence-related collaboration.
Return to directoryNotes
All cited web content was viewed at its original website location; however, to ensure ongoing accessibility we are providing links to Internet Archive versions here.
- Purple Mountain Observatory. 2019. 'Xu Ye was awarded the title of "Most Beautiful Science and Technology Worker" in Jiangsu Province in 2022.' [徐烨获评2022年江苏省"最美科技工作者"称号]. As of 8 April 2026.Return to content⤴ Purple Mountain Observatory. 2019. 'Lin Houyuan.' [林厚源]. As of 8 April 2026. Purple Mountain Observatory. 2009. 'Ma Tao.' [马涛]. As of 8 April 2026.
- Purple Mountain Observatory. 2019. 'Xu Ye was awarded the title of "Most Beautiful Science and Technology Worker" in Jiangsu Province in 2022.' [徐烨获评2022年江苏省"最美科技工作者"称号]. As of 8 April 2026.Return to content⤴ Purple Mountain Observatory. 2019. 'Lin Houyuan.' [林厚源]. As of 8 April 2026. Purple Mountain Observatory. 2009. 'Ma Tao.' [马涛]. As of 8 April 2026.
- Purple Mountain Observatory. 2019. 'Xu Ye was awarded the title of "Most Beautiful Science and Technology Worker" in Jiangsu Province in 2022.' [徐烨获评2022年江苏省"最美科技工作者"称号]. As of 8 April 2026.Return to content⤴