Chinese Virtual Observatory (China-VO)

1. Chinese Virtual Observatory(China-VO) Chenzhou Cui Chinese Virtual Observatory Project National Astronomical Observatory of China The 12th UN/ESA Workshop on Basic Space Science

2. Chinese Virtual Observatory Agenda • Why China-VO • History • Research & Development Focuses • Latest Progress • Partners and collaboration The 12th UN/ESA Workshop on Basic Space Science

3. Development of China-VO • Advanced research platform for Chinese astronomers • Acquire data and technologies from IVOA partners • Share our data (LAMOST, SST, FAST, BATC …) with international astronomers • Bring up a group of VO-oriented astronomers, engineers and students • Public Education The 12th UN/ESA Workshop on Basic Space Science

4. Milestones • Nov. 2001, the 1st national VO meeting • Jul. 2002, “China-VO” project initiated • Oct. 2002, joined to IVOA • Feb. 2003, first grid service, “Hello China-VO” • May 2003, “ConeSearch” service prototype • Jun. 2003, System design documents (draft) • Sep. 2003, the 2nd national VO meeting • China-VO WG established • Oct. 2003, Demo: Chemical Evolution Research of the Galaxy under Grid Environments • Nov. 2003, IVOA Small Projects Meeting • Mar. 2004, VOTFilter The 12th UN/ESA Workshop on Basic Space Science

5. Principles for China-VO R&D • Interoperable and Compatible with IVOA • Based on Grid • Free software + cheap Hardware • International collaboration The 12th UN/ESA Workshop on Basic Space Science

6. China-VO R&D focuses Unlike NVO, Euro-VO and AstroGrid, as a small VO project, • China-VO will emphasize on applications and portals. • But we will take part in the developments of IVOA standards and infrastructure actively. The 12th UN/ESA Workshop on Basic Space Science

7. R&D Focuses • China-VO Platform Construction • Integrated Data Access Service for national and international astronomical datasets • Legacy Application Integration • Astronomical Instrument Integration • VO-enabled LAMOST • Education The 12th UN/ESA Workshop on Basic Space Science

8. Architecture: China-VO Platform The 12th UN/ESA Workshop on Basic Space Science

9. SOA: China-VO Platform The 12th UN/ESA Workshop on Basic Space Science

10. Topology: China-VO Platform The 12th UN/ESA Workshop on Basic Space Science

11. Legacy Application Integration existing Software Packages, Toolkits, Libraries • Astronomical Utilities • Image Manipulation • Math and Statistics • Plotting the more simple I/O and simple user interface the more easier to integrate IRAF, MIDAS, AIPS, … need much user interaction almost impossible for integration The 12th UN/ESA Workshop on Basic Space Science

12. Data Access Services • IVOA DAL and Interoperability standards • VOTable, SIA, UCD, VOQL, etc. • easy access to national and international astronomical datasets • especially important for countries absent of large observation instruments The 12th UN/ESA Workshop on Basic Space Science

13. Astronomical Instrument Integration Current projects: • NAOC 2.16m telescope • Yunnan observatory 2.4m telescope • public internet observatory wide-field camera, 35cm, 60cm • Tsinghua Univ. 40cm public telescope NAOC 2.16 m telescope The 12th UN/ESA Workshop on Basic Space Science

14. VO-enabled LAMOST Large sky Area Multi-Object fibre Spectroscopy Telescope Clear aperture: 4m Field of view:  5° Focal plane:  1.75m Focal length:20m Number of fibers:4000 Spectral ranges:370～900nm Spectral resolution:1～ 0.25nm Sky coverage:Declination -10  to+90 A meridian reflecting Schmidt telescope The 12th UN/ESA Workshop on Basic Space Science

15. VO-enabled LAMOST • VO-enabled • LAMOST data • LAMOST telescope • LAMOST Spectral Analysis Pipeline The 12th UN/ESA Workshop on Basic Space Science

16. VO-based Education • international education resource access • bilingual Skymap • English-Chinese astronomical dictionary • Amateur Astro-Photography Gallery • … • China-VO education portal The 12th UN/ESA Workshop on Basic Space Science

17. Latest Progress • Data Access Service • Chemical Evolution Research of the Galaxy under Grid Environments • VOTFilter • gImageMagick • China-VO Service Registry The 12th UN/ESA Workshop on Basic Space Science

18. GT3 Interface VOTable ADQL ADQL/SQL Translator VOTable Wrapper SQL ResultSet JDBC Catalog/metadata DBMS Database Access Service Chart courtesy of Jian Sang The 12th UN/ESA Workshop on Basic Space Science

19. Database Access Service • Catalog Selection • ConeSearch • RA • DEC • Radius http://ns2.lamost.org:8080/cvo/ The 12th UN/ESA Workshop on Basic Space Science

20. Galactic Abundance Gradients Analysis Data Access Orbit Computing Statistic Analysis Databases The 12th UN/ESA Workshop on Basic Space Science

21. VOTFilter • An XML Filter written in XSLT • for OpenOffice Calc • to read&write files in • VOTable format VOTable • The first standard from IVOA • an XML format defined for the exchange of tabular data in the context of the Virtual Observatory The 12th UN/ESA Workshop on Basic Space Science

22. Usage and Snapshot http://services.china-vo.org/vofilter/ The 12th UN/ESA Workshop on Basic Space Science

23. Funding and Collaboration • Funding • 500,000 RMB (~63,000 USD) • NSF China • MOST (Ministry of Science and Technology, China) • CAS (Chinese Academy of Sciences) • Collaboration • WDC-China • CNGrid project (CNIC) • Xinglong Station (NAOC) • LAMOST project (NAOC) The 12th UN/ESA Workshop on Basic Space Science

24. Partners • National Astronomical Observatories, CAS • Beijing, Yunnan, … • Astronomy Department, Peking University • University of Science and Technology of China • Astrophysics Center, Tsinghua University • Physics Department, Central China Normal University • Computer Network Information Center, CAS • Supercomputing Center, CAS • Institute of Computing Technology, CAS • …… The 12th UN/ESA Workshop on Basic Space Science

25. The 12th UN/ESA Workshop on Basic Space Science

26. Thank You Q & A ? www. .org The 12th UN/ESA Workshop on Basic Space Science