Japanese Virtual Observatory Project Masatoshi Ohishi National Astronomical Observatory of Japan and Sokendai masatoshi. ohishi@nao. ac. jp 2004/03/08 Japan-France Grid Computing Workshop in Paris
Large Telescopes of NAOJ s s s Subaru (optical & Infrared) @ Hawaii Nobeyama (Radio) single dish : f 45 -m interferometer : 6 x f 10 -m solar interferometer : 84 x f 75 -cm HALCA – in orbit f 8 -m 2004/03/08 Japan-France Grid Computing Workshop in Paris
Subaru 2004/03/08 Japan-France Grid Computing Workshop in Paris
Subaru Telescope (optical & IR) 8. 3 -m mirror 2004/03/08 Japan-France Grid Computing Workshop in Paris
2004/03/08 Japan-France Grid Computing Workshop in Paris
5000+ Galaxies !! 2004/03/08 Japan-France Grid Computing Workshop in Paris
45 m Radio Telescope 2004/03/08 Japan-France Grid Computing Workshop in Paris
HALCA VSOP VLBI Space Observatory Programme 2004/03/08 Japan-France Grid Computing Workshop in Paris
JAXA is going to join JVO !! Infrared Satellite by JAXA 2004/03/08 Japan-France Grid Computing Workshop in Paris Launch : 2005 ?
Data Productivity s s s Nobeyama Radio ：~1 TB/yr Subaru@Hawaii ：~20 TB/yr ALMA（planned） ：~PB/yr Flood of excellent data (survey data) Digitized & Archived 2004/03/08 Japan-France Grid Computing Workshop in Paris
Unknowns of Astronomy Physics just after the Big Bang ? s How Galaxies were formed ? s Averaged density of the Universe etc. → statistical analyses for homogeneous survey data are crucial s 2004/03/08 Japan-France Grid Computing Workshop in Paris
The Nature of Astronomers s s Higher sensitivity ! More Data ! Wider Area ! Multi Wavelength Data ! 2004/03/08 Japan-France Grid Computing Workshop in Paris
観 測 データ 解 アイデア 実望遠鏡での 2004/03/08 観測 検 アイデア 析 研究発表 Japan-France Grid Computing Workshop in Paris 索 データ 解 仮想望遠鏡での 観測 析
HPC + High Speed NETWORK +GRID Technology → it is possible to federate multiwavelength-DBs and computing facilities for data analyses → Virtual Observatory 2004/03/08 Japan-France Grid Computing Workshop in Paris
10 Gbps 2004/03/08 Japan-France Grid Computing Workshop in Paris
JVO prototype : Ver. 1 s To establish seamless access to federated DBs by using the Grid technology s To define JVO Query Language, and to implement its parser 2004/03/08 Japan-France Grid Computing Workshop in Paris
Queries for Astronomical Data s Need to consider the following items: • Searches on Spherical Coordinate → 1 deg west of longitude 0 is longitude 359 deg ! • Difference of spatial resolutions • Pointing accuracy of telescope 2004/03/08 Japan-France Grid Computing Workshop in Paris
Astronomical Data s s s Image Spectrum Photon count Light curves etc. 2004/03/08 s Catalogue source position, size, brightness, other parameters Japan-France Grid Computing Workshop in Paris
JVO QL for Federated DBs 2004/03/08 Japan-France Grid Computing Workshop in Paris
User Interfaces Need to know about SQL to use JVOQL → An editor to create JVOQL from GUI Editable on screen → more flexibility for advanced users 2004/03/08 Japan-France Grid Computing Workshop in Paris
2004/03/08 Japan-France Grid Computing Workshop in Paris
Development of Prototype 2 For preparation of Operational System s User registration : single sign-on s User area over Firewall : GSI-SFS s Adoption of GT 3 s Implementation of several analysis tools 2004/03/08 Japan-France Grid Computing Workshop in Paris
User athentication User Interface • User Registration • User Authentication JSP DB Navigator JSP • JVOQL editor • DB search by resource finder • UCD finder • Name Resolver • Execution Monitor JSP Analyses interface Data Display Query interface • VOTable Viewer • Plotter • Image Data Viewer • Spectrum Data Viewer • Overlay of Muti-catalogs • Overlay of muti-wavelength Simple Analises • Source extraction （Sextractor） • Hyper. Z • Image Manipulation • Photometry Special ANalises • Grav. Lens Search • Galactic dust • Evolution of Chemical Comp. JSP images • DB search by resource finder Servlet Status cofirmation DB metadata query Query Results (XML) Query script (XPath) Controller JB Analysis Execution Status Scheduler JB Registry （XMLDB） Obs. Instruction Scheduler JB Obs. Instruct. results User DB Japan-France Grid Computing Workshop in Paris Grid service OAI-PMH Grid. FTP Meta. DB OAI-PMH Astro DB OAI-PMH Meta. DB Grid service Results sent by SOAP Query Order Results sent by OAI-PMH SOAP Query Order DB Analysis Grid. FTP Grid service Executor JB Query Order OAI-PMH Executor JB Meta. DB Data Transfer by GSI-SFS Parsed JVOQL, results 2004/03/08 Status confirmation Grid service JVOQL Parser JB Astro DB Analysis Instruction Parsed JVOQL Grid service ・ Query Execution Status Controller JB JVOQL Data transfer by GSI-SFS JVO System Query Instruction (JVOQL)
Resource Meta Data Identity metadata curation metadata 2004/03/08 service metadata content metadata column metadata Catalog、Table Japan-France Grid Computing Resourceはcolumn metadata 以外を持つ。 Column Workshop in Paris. Resource はすべての metadata をもてる。(省略可）
Comparison of two Prototypes toolkit Services used registry Commu. overhead 2004/03/08 Prototype 1 Globus tk 2 GRAM Grid. FTP UDDI Prototype 2 Globus tk 3 Grid Services RFT XMLDB ~20 – 30 sec ~ 30 msec Japan-France Grid Computing Workshop in Paris
A Scientific Target on Prototype 2 s Search for Gravitational lenses created by Cosmic Strings 2004/03/08 Japan-France Grid Computing Workshop in Paris
Search for Gravitational Lenses created (? ) by Cosmic Strings s SXDS data observed by Subaru Query results were obtained less than 5 min. , displaying SEDs It has been proven that VO can accelerate researches. 2004/03/08 Japan-France Grid Computing Workshop in Paris
Road Map 2003 Prototype 2 → development of components for operation 2004 start to develop operational system late 2004 ? ? trial use 2005 -2006 trial use & upgrade 2007 prepare for partial operation of ALMA 2004/03/08 Japan-France Grid Computing Workshop in Paris
ALMA in Chile (sub-mm wave) EU-US-J Collaboration 2004/03/08 Japan-France Grid Computing Workshop in Paris
VO Projects in the world NVO (USA), AVO (EU), Astro. Grid (UK) s Germany, Canada, Russia, Australia s India, China, Italy, France (CDS), Korea, JAPAN Interoperability : International Virtual Observatory Alliance (IVOA) http: //www. ivoa. net/ CDS: Strasbourg Data Center s 2004/03/08 Japan-France Grid Computing Workshop in Paris
WGs in IVOA s s s Registry, Data model, Data Access Layer, VOtable, VOQL, Grid, UCD, Standard Documents Executive Committee Interoperability meetings were held twice 2004/03/08 Japan-France Grid Computing Workshop in Paris
Sky. QL & ADQL s s JVOQL has been adopted as one of the basis for Sky. QL (standard query language in IVOA) XML description of Sky. QL = ADQL Astronomical Data Query Language 2004/03/08 Japan-France Grid Computing Workshop in Paris
Virtual Observatory → Common Infrastructure for Astronomy 2004/03/08 Japan-France Grid Computing Workshop in Paris
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