Small ProjectsBridging IVO Standards and Best Practice

Bridging IVOA and Domestic Community

Chenzhou Cui, Yongheng ZhaoChinese Virtual Observatory

National Astronomical Observatory of China

IVOA Small Projects Meeting, 2004, Pune

Agenda

1. Status of VO projects

2. Brief Review of the 1st Small Project Meeting

3. Discussion about Roles of Small VO Projectsa. Bridging IVO Standards and Best Practice

b. Bridging IVOA and Domestic Community

Agenda

1. Status of VO projects

2. Brief Review of the 1st Small Project Meeting

3. Discussion about Roles of Small VO Projectsa. Bridging IVO Standards and Best Practice

b. Bridging IVOA and Domestic Community

Differences among projects

Big project Small Project

Scale(Members, Institutes, Funding)

large small

Activity high low

R&D focus Framework and standards

Application and tools

- Just in my personal opinion

Activity Statistics

- Incomplete, Just in my personal opinion

Project Type Topics in Sep, 04 Sourceavo twiki 180 http://www.euro-vo.org/twiki/bin/view/Avo/WebStatistics

astrogrid twiki 237 http://wiki.astrogrid.org/bin/view/Astrogrid/WebStatistics

nvo twiki 368 http://chart.stsci.edu/twiki/bin/view/Main/WebStatistics

ivoa twiki 206 http://www.ivoa.net/twiki/bin/view/IVOA/WebStatistics

aus-vo twiki 3 http://www.aus-vo.org/twiki/bin/view/Main/WebStatistics

draco twiki 5 http://wwwas.oat.ts.astro.it/twiki/bin/view/Main/WebStatistics

vo-france twiki 7 http://www.france-vo.org/twiki/bin/view/ASOVFrance/WebStatistics?rev=r1.37

kvo Board 7 http://www.kao.re.kr/kvo/kvoboard.html

china-vo Yahoo Group 13 http://groups.yahoo.com/group/china-vo/messages/

Status of VO projects

Agenda

1. Status of VO projects

2. Brief Review of the 1st Small Project Meeting

3. Discussion about Roles of Small VO Projectsa. Bridging IVO Standards and Best Practice

b. Bridging IVOA and Domestic Community

Small project meeting, Beijing

• 26-28 November 2003: Beijing, China• Main topics:

– Advantages and disadvantages of small projects. – The role of small projects in the IVOA. – R&D focus of small projects. – Collaboration among small projects and with big VO proje

cts. – Implementation of IVOA standards and infrastructures de

veloped by other VO projects.• 39 participants from Korea, Japan, India, Europe,

UK and China (including Taiwan)

Brief Review

Agenda

1. Status of VO projects

2. Brief Review of the 1st Small Project Meeting

3. Discussion about Roles of Small VO Projectsa. Bridging IVO Standards and Best Practice

b. Bridging IVOA and Domestic Community

Agenda

1. Status of VO projects

2. Brief Review of the 1st Small Project Meeting

3. Discussion about Roles of Small VO Projectsa. Bridging IVO Standards and Best Practice

b. Bridging IVOA and Domestic Community

Bridging IVO Standards ~ Best Practice

Best Practices• As resources, tools• It is important for the IVOA standards

and recommendations to be learned and adopted by astronomers/users.

• As references and guides• It is important for VO developers and

data providers

Small project is suitable for the role

• Familiar to IVOA standards

• With required IT/CS backgrounds (Grid, WS, XML, SOAP, etc.)

• Know well astronomer requirements

Some examples

• Aus-VO– Skycat

• astronomical catalogue server, provides access to BGC, HIPASS, HIPASS HVC, SUMSS catalogs

– Volume • VOTable data visualization tool using VRML

• VO-India– conVOT

• a tool for converting ASCII or FITS tables to VOTable format – VOPlot

• the “most popular” VOTable visualization toolkit• HVO

– Filter Profile Service and Spectrum Service, cooperated with Johns Hopkins University

VOTFilter from China-VO

• An XML Filter written in XSLT • for OpenOffice Calc• to read&write files in• VOTable format

• Easy of use, no Java, XML, VOTable knowledge is required.

• Link IVOA standard with industrial desktop application

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

Agenda

1. Status of VO projects

2. Brief Review of the 1st Small Project Meeting

3. Discussion about Roles of Small VO Projectsa. Bridging IVO Standards and Best Practice

b. Bridging IVOA and the Domestic Community

Bridging IVOA ~ Domestic Community

Common tasks for small projects• to contribute domestic data archives

and expertise to the world• to share international data, tools with

international partners for domestic research and education

• a “gateway” between domestic and world wide resources

Some examples

• Aus-VO– HIPASS: HI Parkes All Sky Survey– ATCA Archive:Australia Telescope Compact Array – MACHO Archive: Massive Compact Halo Objects

• VO-India–Ladakh telescope

•2 m remotely operated Himalayan Chandra Telescope (HCT)

–Giant Metrewave Radio Telescope (GMRT)

•3040m fully steerable gigantic parabolic dishes, about 80 km north of Pune

Some examples

• GAVO– federation of archives available in the German astronomical co

mmunity– creation of a theory-oriented component to the VO– development of advanced datamining algorithms

• RVO– To unite Russian and fSU data, to integrate them into the IVO– To provide Russian astronomical community with a convenient

access to the world data– To use Russian instrumentation to provide observational data in

remote mode when needed– To develop Russian electronic astronomical education resource

s

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

VO-enabled LAMOST

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

Beijing-Arizona-Taiwan-Connecticut Sky Survey

• Started in 1995• data archived on CD-

ROM and hard disks• comprise about 600

GB.

•0.6/0.9 m Schmidt telescope•15 intermediate-band filters

• Improve current HTTP, FTP interface

• Provide VO-compliant interface

BATC Data Release Platform

Current Interface

Pune University in March, 2004