February 20, 2006JVO-AstroGrid Collaboration1 Current Status of JVO, and Goal of Collaboration between JVO and AstroGrid Masatoshi Ohishi / NAOJ & Sokendai 大石雅寿 / 国立天文台 & 総合研究大学院大学

February 20, 2006JVO-AstroGrid Collaboration 2 JVO collaborators Project Scientists NAOJ Mizumoto Oe Shirasaki Tanaka Honda Kawanomoto ICRR Yasuda Ochanomizu U. Masunaga System Engineers Fujitsu Ltd. Monzen Kawarai Ishihara Tsutsumi SEC Ltd. Morita Nakamoto Kobayashi Sakamoto Supporter NII Miura

February 20, 2006JVO-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, 2006JVO-AstroGrid Collaboration4 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, 2006JVO-AstroGrid Collaboration5 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, 2006JVO-AstroGrid Collaboration 6 Accessible from anywhere at any time Even for educational use Accelerate 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, 2006JVO-AstroGrid Collaboration 7 VO Projects in the world 17 countries and a region International Virtual Observatory Alliance (IVOA) Standards to interoperate VOs Japan – Language to access federated DB

February 20, 2006JVO-AstroGrid Collaboration 8 Schematic diagram of JVO JVO Portal Server User Controller ・ parser ・ scheduler ・ Service caller Resource Meta-data Web Services Input Queries and Analysis Parameters User Interface ・ Query Editor ・ VOTable viewer ・ DB queries ・ Plotter ・ etc US/CAN Europe SIAP/SSAP/SkyNode

February 20, 2006JVO-AstroGrid Collaboration 9 Exchange of Meta Data:OAI-PMH Searchable Registry Publishing Registry Data Service Analysis Service Virtual Observatory Client Query Services Access to various services

February 20, 2006JVO-AstroGrid Collaboration 10 Integration of standard protocols

February 20, 2006JVO-AstroGrid Collaboration 11 Interconnected VOs in the World Canada VO

February 20, 2006JVO-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, 2006JVO-AstroGrid Collaboration 13 JVO is seen from AstroGrid

February 20, 2006JVO-AstroGrid Collaboration 14 Elapsed time to querying US VOs wavelength Survey name server time (sec) X-rayChandracda.harvard.edu Infrared2MASSmercury.cacr.caltech.e du RadioVLAadil.ncsa.uiuc.edu7.115 Best Records -- Some servers may be overloaded from time to time

February 20, 2006JVO-AstroGrid Collaboration 15 Performance Improvement Memory consumption was too large. AXIS implementa- tion Introduced memory garbage  stable operation

February 20, 2006JVO-AstroGrid Collaboration 16 Workflow Description Language Based on BPEL4WS Variable definition Controls (Loop, Condition) Parallel execution Invoke external services Invoke built-in Java Classes

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February 20, 2006JVO-AstroGrid Collaboration 18 QSO searches Such results can be obtained only in a few minutes

February 20, 2006JVO-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, 2006JVO-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

February 20, 2006JVO-AstroGrid Collaboration 21 Reference URLs JVO – IVOA – there are links to other VO projects in the world

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