China-VO:China-VO: status & planstatus & plan

ZHAO Yongheng (NAOC)ZHAO Yongheng (NAOC)

Pune, Sep. 2004Pune, Sep. 2004

Chinese Virtual ObservatoryChinese Virtual Observatory(China-VO)(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

• Education outreach

HighlightsHighlights

Sep. 2001: VO meeting in China

July 2002: Concept of “Chine-VO”

Oct. 2002: member of IVOA

June 2003: System design finished

Sep. 2003: China-VO meeting

Nov. 2003: IVOA Small Projects Meeting, Beijing

Sep. 2004: IVOA Small Projects Meeting, Pune

Nov. 2004: China-VO meeting

Technology progress• Cone Search Service (2003)• Abundance gradients in the Galaxy statistical rese

arch (2003)• VOTable OpenOffice Filter (2004)

• Astronomical Almanac• Auto-classification using multi-wavelength archives

– Structure of the Galaxy– AGN

Storage SystemsStorage Systems

Linux + IDE HD + soft RAID2001: 550GB

• ADS mirror site

2002 ： 4.5TB• 1TB multi-wavelength data• 3TB SDSS archive

2004 ： 4TB• SDSS archive• ……

Beijing Astronomical Data CenterWDC for Astronomy, Beijing

China-VO ： based on DataGrid (OGSA)

Everything is Grid Service (GS)

Service Interface

implementations implementations implementations

Protocols

User

Software SystemsSoftware Systems

Grid & WS

GT3 => GT4 … WSRF

Grid ServicesGrid Services

DataApplications

ComputingStorageProcessingStatisticsMiningVisualization

Registry

Astronomical applicationsAstronomical applications

• Data services– Cone search, Cross-match, …– Interoperated with other VOs, …

• With LAMOST• to Telescopes

– 2m in Xinglong/NAOC & Lijiang/Yunnan

• Education– Astronomical almanac, Star chart, …

Grid Services for DataGrid Services for Data

Query Translate

r

MySQL DBMS Program Program

Grid Interface

…..

VOTable Wrapper

NVSS Tycho GSC2DSS

IBATCDSS

II

GS for Cone SearchGS for Cone Search

Web Cl i ent

M99(RB)

3D Pi cture

HTML页面 ，Appl et

Web Appl i cati on Server

Servl et

Web Servi ceJ ava Proxy

J SP

Soap Cl i ent

处理/类CGI

逻辑页面

Http SoapApache Tomcat

Servi ce Provi der Appl i cati onWeb Appl i cati on Server

Other WebServi ces(DB)

Soap Servl et

Servi ce Bean

1

8

7

3

2

6

4

5

9

Servi ce Request Appl i cati on

Client forVisualization

Cone SearchCone Search

Chemical Evolution Chemical Evolution of the Galaxyof the Galaxy

GS for Data

GS for Orbit Calc.

GS for Statistics

GS for Visualization

Grid Services for ToolsGrid Services for Tools

Parameter Trans

later

Command lines C Program ? Program

Grid Interface

…..

Java Wrapper

Services & ToolsServices & Tools

• China-VO Catalogue Access Service

• China-VO Grid Registry Area

• VOTFilter

• Astronomical Calculation

• China-VO Resource Register

Service Registry

VOTFilterVOTFilterVOTable VOTable OpenOffice OpenOffice

Astronomical almanacAstronomical almanac

Query calendar Find next eclipse locally Find next eclipse globally Query rising and setting time of planet Query the time of twilight Query planet position Query bright star's position Query long time bright star's position Query star's position by file Star's epoch conversionConvert date to Julian dayConvert Julian day to date

Calendar of 10,000 years

(5400 BC – 5400 AD)

AstrochronologyAstrochronology

“ 颛顼以今之孟春正月为元，其时正月朔旦立春，五星会于天庙，营室也 ” 《晋书 · 历律志》

Swiss ephemeris

(5400BC-5400AD)

New moon

Solar term

Five planets

Hipparcos

catalogue

precess

“ 日月如合璧、五星如连珠”

Feb. 26, 2807 BC

Long term variations of Long term variations of Earth’s RotationEarth’s Rotation

VO-1

VO-2

Development of China-VODevelopment of China-VO• Grid Services of data & tools• Query & Cross-identification• Astronomical Objects & Methods

• Data mining tools• Visualization tools• Workflow• With Computing Grid

• Connected with telescopes• Virtual Astronomical Instrument (VAI)

VO-3

Interface of China-VOInterface of China-VO

• Major nodes– OGSA / WS

• Powerful users– Remote program call

• Personal users– Portal

NAOC

YNAO

PKU

…

Internet

CNGrid

SSC SCCAS

CNIC

THU…

IVO

NVO

…AstroGrid

AVO

China-VO

USTC

PlanningPlanning

2004• Design• V.0 (Demo)

2005-2006• Major nodes• IVO • V.1 (Sevices)

2007-2008• IVO• V.2 (Applications)

PartnersPartners• National Astronomical Observatories, CAS

– Beijing, Yunnan, …

• Astronomy Department, Peking University• University of Science and Technology of China• Astrophysics Center, Tsinghua University• Astronomy Department, Nanjing University• Physics Department, Huazhong Normal University

• Computer Network Information Center, CAS• Institute of Computing Technology, CAS• ……

FoundersFounders

• Ministry of Science and Technology of China

• Natural Science Foundation of China

• Chinese Academy of Sciences

Funding up to now: 1,600,000 RMB (~200,000 USD)

Thank youThank you ！！

http://www.china-vo.org/