February 20, 2006 JVO-AstroGrid Collaboration 1

Current Status of JVO, and Goal of Collaboration between JVO a

nd AstroGrid

Masatoshi Ohishi / NAOJ & Sokendai

大石雅寿 / 国立天文台 & 総合研究大学院大学

masatoshi.ohishi@nao.ac.jp

February 20, 2006 JVO-AstroGrid Collaboration 2

JVO collaboratorsProject ScientistsNAOJ• Mizumoto• Oe• Shirasaki• Tanaka• Honda• KawanomotoICRR• YasudaOchanomizu U.• Masunaga

System Engineers

Fujitsu Ltd.• Monzen• Kawarai• Ishihara• Tsutsumi

SEC Ltd.• Morita• Nakamoto• Kobayashi• Sakamoto

SupporterNII•Miura

February 20, 2006 JVO-AstroGrid Collaboration 3

Fundings etc.

• Grant-in-Aid by the MEXT

• Core-to-Core Program of the JSPS Extension for three years

• NAOJ– Personnel

– VO as the core of new Data Center

– etc.

February 20, 2006 JVO-AstroGrid Collaboration 4

Data Resources in NAOJ• Subaru 8.2m Optical-Infrared Telescope• Kiso 105cm Schmidt Camera• Okayama 188cm Optical Telescope• Nobeyama 45m Radio Telescope• Nobeyama Millimeter Array• Nobeyama Radioheliograph • VSOP• VERA • ALMA

Subaru

Nobeyama 45m

February 20, 2006 JVO-AstroGrid Collaboration 5

Data Resources in JAXA/ISAS

• ASCA X-ray astronomy satellite• YOHKO solar physics satellite• Ginga X-ray astronomy satellite• HALCA VLBI satellite• Geotail geomagnetosphere satellite• Akebono aurora observation satellite• ASTRO-F Infrared satellite• ASTRO-E2 X-ray satellite• SOLAR-B

ASCA

HALCA

YOHKO

February 20, 2006 JVO-AstroGrid Collaboration 6Accessible from anywhere at any time

Even for educational useAccelerate astronomical research, and sufficient time for research itself !! Virtual Observatory

Too hard to collect and analyze whole data.Need Cat’s help

Nobeyam Radio Obs.

SUBARU telescope

ALMA

Data Rate

~ 1 TB/yr

~ 20 TB/yr

~ 1 PB/yr

February 20, 2006 JVO-AstroGrid Collaboration 8

Schematic diagram of JVO

JVO Portal Server

User

Controller　・ parser　・ scheduler　・ Service caller

Resource Meta-data

Web Services

Web Services

Web Services

Web ServicesInput Queries and AnalysisParameters

User Interface

・ Query Editor・ VOTable viewer・ DB queries・ Plotter・ etc

US/CAN

Europe

SIAP/SSAP/SkyNode

SIAP/SSAP/SkyNode

February 20, 2006 JVO-AstroGrid Collaboration 10

Integration of standard protocols

February 20, 2006 JVO-AstroGrid Collaboration 11

Interconnected VOs in the World

Canada VO

February 20, 2006 JVO-AstroGrid Collaboration 12

Successful Interoperations

• Accesses from / to other VOs in Europe and US have been available since Dec 2004

• Publishing & Searchable Registries

• 140+ resources are accessible as of today

February 20, 2006 JVO-AstroGrid Collaboration 13

JVO is seen from AstroGrid

February 20, 2006 JVO-AstroGrid Collaboration 14

Elapsed time to querying US VOs

wavelength Survey name

server time (sec)

X-ray Chandra cda.harvard.edu 1.715

Infrared 2MASS mercury.cacr.caltech.edu

3.536

Radio VLA adil.ncsa.uiuc.edu 7.115

Best Records -- Some servers may be overloaded from time to time

February 20, 2006 JVO-AstroGrid Collaboration 16

Workflow Description Language

Based on BPEL4WS

• Variable definition• Controls (Loop,

Condition)• Parallel execution• Invoke external

services• Invoke built-in Java

Classes

February 20, 2006 JVO-AstroGrid Collaboration 17

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QSO searches

Such results can be obtained only in a few minutes

February 20, 2006 JVO-AstroGrid Collaboration 19

Future Prospects• Started to design / implement operational system

– More User-friendly interfaces– Add analysis engines by Java-wrapping– Single-Sign-on, authentication by Grid tool– Virtual file system as users area: VOStore– Download to / Upload from user machines– Science corresponding to use cases !!– Collaboration with large observatories (Subaru, ALMA)

• Experimental operation – March 2006 (hopefully)• Standardization of WFDL in IVOA• Technologies sharing in AP region (East Asia)

February 20, 2006 JVO-AstroGrid Collaboration 20

Wish List for Collaboration

• Workflow– Common effort to standardize WFDL in IVOA

• from JVO to AstroGrid– SkyNode tool kit

• from AstroGrid to JVO– MySpace toward VOStore– SSO if available

• Access to AstroGrid Registry

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