Open Access statistics for National Astronomical Observatory of Japan, Japan, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
79%
Total
Publications
14K
Total Open
Publications
11K
Total
Citations
603K
Open Access
Percentage
79%
Total
Publications
14K
Total Open
Publications
11K
Total
Citations
603K
Breakdown
Publisher Open
17%
Both
53%
Other Platform Open
9%
Closed
21%
Percentage of Open Access over time
Publisher Open
Both
Other Platform Open
Closed
Volume of Open Access over time
Open
Closed
Publisher Open
OA Journal 72%
6.9K
Hybrid 5%
508
No Guarantees 23%
2.1K
Other Platform Open
Preprint 77%
6.5K
Institution 46%
3.9K
Other Internet 8%
668
Public 2%
158
Domain 1%
92
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
arXiv | Preprint | 6.6K |
doaj.org OAI-PMH Repository | Institution | 797 |
Le Centre pour la Communication Scientifique Directe - HAL - Diderot | Institution | 711 |
DOI | Other Internet | 591 |
Royal Netherlands Academy of Arts and Sciences | Institution | 566 |
Office of Scientific and Technical Information | Institution | 508 |
University of Groningen | Institution | 426 |
University of Amsterdam | Institution | 285 |
Japan Aerospace Exploration Agency | Institution | 256 |
Consejo Superior de Investigaciones Científicas | Institution | 254 |
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