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The Chinese V IRTUAL O BSERVATORY. China-VO. History and current status. Chenzhou CUI National Astronomical Observatories, Chinese Academy of Sciences. Content. Infrastructure and facilities in CAS Principles and goals for the China-VO Activities and outputs Future directions - PowerPoint PPT Presentation
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IVOA SPM 2006, Moscow 1
History and current status
Chenzhou CUINational Astronomical Observatories, Chinese Academy of Sciences
The Chinese VIRTUAL OBSERVATORY
IVOA SPM 2006, Moscow 2
Content
• Infrastructure and facilities in CAS• Principles and goals for the China-VO• Activities and outputs• Future directions• Roles of small VO projects
IVOA SPM 2006, Moscow 3
IT infrastructure in CAS
2001 year 2005 year
Network
Core net bandwidth
1Gbps 2.5Gbps
Backbone net bandwidth
2Mbps N*155Mbps+5Gbps
International Links
55Mbps 620Mbps+17.5Gbps
Computing and Storage
Rpeak 0.13 TFlop/s 5.3 TFlop/s
Storage 2.1TB 182TB
Rmax 0.05 TFlop/s 4.193 TFlop/s
IVOA SPM 2006, Moscow 4
Lenovo 6800 Rank 124
Site CAS
Manufacturer Lenovo
ComputerDeepComp 6800, Itanium2 1.3
GHz, QsNet
Country China
Year 2003
Processors 1024
Rmax 4193
Rpeak 5324.8
Nmax 491488
Nhalf 0
Operating System
Linux
Architecture Cluster
IVOA SPM 2006, Moscow 5
• NAOC– Beijing– Changchun– Urumchi– Kunming
• Purple Mountain Obs. (Nanjing)
• Shanghai Obs.– Qinghai Station
Observatories in CAS
Optical: 2.4mRadio: 50m
IVOA SPM 2006, Moscow 6
Development of China-VO
• Advanced research platform for Chinese astronomers
• Import data and technologies from IVOA partners
• Share Chinese datasets with international astronomers
• Bring up a group of VO-oriented astronomers, engineers and students
• Education outreach
IVOA SPM 2006, Moscow 7
R&D Focuses
• China-VO Platform• Uniform Data Access System• VO-compliant projects• VO-enabled facilities• VO-based Public Education
IVOA SPM 2006, Moscow 8
•2001.11 1st VO workshop in China•2002.7 “China-VO” kicked off•2002.10 “China-VO” became a member of the IVOA•2003.6 China-VO system design•2003.9 the 2nd VO workshop•2003.11 IVOA Small Projects Meeting•2004.5 VOFilter 1.0 released•2004.12 China-VO 2004•2005.8 VOFilter 2.0 released•2005.11 China-VO 2005•2006.5 VO-DAS project began•2006.7 SkyMouse 1.0 released•2006.12 China-VO 2006•2007.5 IVOA interoperability meeting, Beijing
History and Events
IVOA SPM 2006, Moscow 9
China-VO Meeting (2001, Beijing)
VO is important, we should involve…
IVOA SPM 2006, Moscow 10
China-VO in 2002
• “China-VO” initiated• China-VO PI (Yongheng Zhao) attended the VO
conference in Garching, ESO• Dr. Jim Gray (NVO, Microsoft Research) visited the
China-VO• China-VO became a member of the IVOA
IVOA SPM 2006, Moscow 11
China-VO 2003, Beijing
IVOA SPM 2006, Moscow 12
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
projects. – Implementation of IVOA standards and
infrastructures developed by other VO projects.
• 39 participants from Korea, Japan, India, Europe, UK and China (including Taiwan)
IVOA SPM 2006, Moscow 13
Brief Review
IVOA SPM 2006, Moscow 14
IVOA SPM 2006, Moscow 15
China-VO 2004, Wuhan, Hubei
IVOA SPM 2006, Moscow 16
China-VO 2005 (Weihai, Shandong)
IVOA SPM 2006, Moscow 17
China-VO 2006
• Theme: the coming e-science era for astronomy research
• Date: November 29th – December 3rd
• Place: Guangxi Normal Univ., Guilin, Guangxi
IVOA SPM 2006, Moscow 18
China-VO Architecture
IVOA SPM 2006, Moscow 19
IVOA SPM 2006, Moscow 20
Two XSLT transforms
• VOFilter– an XML filter for OpenOffice.org Calc to open
VOTable files– http://services.china-vo.org/vofilter/
• VOTable2XHTML– a stylesheet to transform VOTable data into
HTML/XHTML format– http://services.china-vo.org/votable2xhtml/
IVOA SPM 2006, Moscow
• Touch the sky with your mouse• An intelligent client for VO services• A commodity for astronomers and
students
A Smart On-line Astronomical Information Collector
IVOA SPM 2006, Moscow 22
VO Data Access Service (VO-DAS)
• Based on comparative mature Grid middle-wares, for example Globus Toolkit and OGSA-DAI, the VO-DAS system will provide VO-compliant, uniform access interfaces for different kinds of astronomical resources existing as VO services, databases, file systems and even data mining algorithms and other applications.
• From Aug 14th, VO-DAS project has been turned from design stage to coding stage. A preview version will be available by the end of the year. The first public release will be in the IVOA 2007 Spring Interoperability meeting.
IVOA SPM 2006, Moscow 23
VO-DAS
IVOA SPM 2006, Moscow 24
Astrophysical Integrated Research Environment (AIRE)
• Provide a web-based collaborative research environment
Radio : Interferometry …, AIPS, AIPS++, Difmap…Optical : Photometry … , IRAF, MIDAS …X-ray : Coded-mask …, HEADAS ….
Contributed by Tsinghua University
IVOA SPM 2006, Moscow 25
Partners
• National Astronomical Observatories (NAOC)• Purple Mountain Astronomical Observatory (Nanjing)
• Shanhai Astronomical Observatory• Tsinghua University• Peking University• Beijing Normal University• Nanjing University• University of Science and Technology of China
• Beijing Planetarium• Huazhong Normal University• Computer Network and Information Center, CAS
• Tianjing University
IVOA SPM 2006, Moscow 26
Topology
NAOC
YNAO
PKU
…
Internet
CNGrid
SSC SCCAS
CNIC
THU…
IVO
NVO
…AstroGrid
AVO
China-VO
USTC
IVOA SPM 2006, Moscow 27
Roles of Small VO Projects
a. Bridginga) Bridging IVO Standards and Best Practice
b) Bridging VO and Domestic Community
b. Servicinga) User training
b) VO-enabled projects
IVOA SPM 2006, Moscow 28
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
IVOA SPM 2006, Moscow 29
VO-enabled LAMOST
• VO-enabled– LAMOST data– LAMOST Spectral Analysis Pipeline
IVOA SPM 2006, Moscow 30
Beijing-Arizona-Taiwan-Connecticut Sky Survey
• Started in 1995• data archived on
CD-ROM and hard disks
• 700 GB images
•0.6/0.9 m Schmidt telescope•15 intermediate-band filters
IVOA SPM 2006, Moscow 31
• Catalog is available at VizieR now
• Image archive access system is under developing
BATC Data Release
Current Interface
IVOA SPM 2006, Moscow 32
Q & A
?www. .org
The Chinese VIRTUAL OBSERVATORY