05/24/2004the 12th un/esa workshop on basic space science chinese virtual observatory (china-vo)...
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05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Chinese Virtual Observatory(China-VO)
Chenzhou CuiChinese Virtual Observatory Project
National Astronomical Observatory of China
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Chinese Virtual Observatory
Agenda
Why China-VOHistoryResearch & Development FocusesLatest ProgressPartners and collaboration
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
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
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
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
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Principles for China-VO R&D
• Interoperable and Compatible with IVOA
• Based on Grid
• Free software + cheap Hardware
• International collaboration
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
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.
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
R&D Focuses
1. China-VO Platform Construction2. Integrated Data Access Service for
national and international astronomical datasets
3. Legacy Application Integration4. Astronomical Instrument Integration
– VO-enabled LAMOST
5. Education
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Architecture: China-VO Platform
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
SOA: China-VO Platform
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Topology: China-VO Platform
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Legacy Application Integration
existing Software Packages, Toolkits, Libraries– Astronomical Utilities – Image Manipulation – Math and Statistics– Plotting
IRAF, MIDAS, AIPS, …need much user interactionalmost impossible for integration
the more simple I/O and simple user interfacethe more easier to integrate
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
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
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Astronomical Instrument Integration
Current projects:
• NAOC 2.16m telescope• Yunnan observatory 2.4m telesc
ope• public internet observatory
wide-field camera, 35cm, 60cm• Tsinghua Univ. 40cm public teles
cope
NAOC 2.16 m telescope
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
LLarge sky arge sky AArea rea MMulti-ulti-OObject fibre bject fibre SSpectroscopy pectroscopy TTelescopeelescope
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
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
VO-enabled LAMOST
• VO-enabled– LAMOST data– LAMOST telescope– LAMOST Spectral Analysis Pipeline
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
VO-based Education
• international education resource access• bilingual Skymap• English-Chinese astronomical dictionary• Amateur Astro-Photography Gallery• …
• China-VO education portal
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
• Data Access Service
• Chemical Evolution Research of the Galaxy under Grid Environments
• VOTFilter
• gImageMagick
• China-VO Service Registry
Latest Progress
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Database Access Service
Catalog/metadata
VOTable Wrapper
ADQL/SQL Translator
GT3 Interface
ADQL VOTable
JDBC
SQL ResultSet
DBMSChart courtesy of Jian Sang
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
• Catalog Selection
• ConeSearch– RA– DEC– Radius
Database Access Service
http://ns2.lamost.org:8080/cvo/
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Galactic Abundance Gradients Analysis
Databases
Data Access
Statistic Analysis
Orbit Computing
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
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
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
http://services.china-vo.org/vofilter/Usage and Snapshot
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
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)
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
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 Univers
ity• Computer Network Information Center, CAS• Supercomputing Center, CAS• Institute of Computing Technology, CAS• ……
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
05/24/2004The 12th UN/ESA Workshop on Basic Space Science
Q & A
?www. .org
Thank You
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