CVO4UN ESA

Chinese Virtual Observatory(China-VO): 

Chinese Virtual Observatory (China-VO) Chenzhou Cui Chinese Virtual Observatory Project National Astronomical Observatory of China

Chinese Virtual Observatory: 

Chinese Virtual Observatory Agenda Why China-VO History Research & Development Focuses Latest Progress Partners and collaboration

Development of China-VO: 

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

Milestones: 

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

Principles for China-VO R&D: 

Principles for China-VO R&D Interoperable and Compatible with IVOA Based on Grid Free software + cheap Hardware International collaboration

China-VO R&D focuses: 

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.

R&D Focuses: 

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

Architecture: China-VO Platform : 

Architecture: China-VO Platform

SOA: China-VO Platform : 

SOA: China-VO Platform

Topology: China-VO Platform : 

Topology: China-VO Platform

Legacy Application Integration: 

Legacy Application Integration existing Software Packages, Toolkits, Libraries Astronomical Utilities Image Manipulation Math and Statistics Plotting IRAF, MIDAS, AIPS, … need much user interaction almost impossible for integration the more simple I/O and simple user interface the more easier to integrate

Data Access Services: 

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

Astronomical Instrument Integration: 

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

Slide14: 

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 VO-enabled LAMOST

VO-enabled LAMOST: 

VO-enabled LAMOST VO-enabled LAMOST data LAMOST telescope LAMOST Spectral Analysis Pipeline

VO-based Education: 

VO-based Education international education resource access bilingual Skymap English-Chinese astronomical dictionary Amateur Astro-Photography Gallery … China-VO education portal

Slide17: 

Data Access Service Chemical Evolution Research of the Galaxy under Grid Environments VOTFilter gImageMagick China-VO Service Registry Latest Progress

Database Access Service: 

Database Access Service Chart courtesy of Jian Sang

Database Access Service: 

Catalog Selection ConeSearch RA DEC Radius Database Access Service http://ns2.lamost.org:8080/cvo/

Galactic Abundance Gradients Analysis: 

Galactic Abundance Gradients Analysis Databases Data Access Statistic Analysis Orbit Computing

VOTFilter: 

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

Usage and Snapshot: 

http://services.china-vo.org/vofilter/ Usage and Snapshot

Funding and Collaboration: 

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)

Slide24: 

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 ……

Slide26: 

Q & A ? www. .org Thank You