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

1
Current Status of JVO, and Goal of Collaboration
between JVO and AstroGrid

• Masatoshi Ohishi / NAOJ Sokendai
• ???? / ????? ?????????
• masatoshi.ohishi_at_nao.ac.jp

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

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.

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

Nobeyama 45m
Subaru
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
YOHKO
HALCA
6
(No Transcript)
7
VO Projects in the world

• 17 countries and a region
• International Virtual Observatory Alliance
  (IVOA)Standards to interoperate VOs
• Japan Language to accessfederated DB
• http//www.ivoa.net/

8
Schematic diagram of JVO
SIAP/SSAP/SkyNode
US/CAN
SIAP/SSAP/SkyNode
Europe
9
Exchange of Meta DataOAI-PMH
Searchable Registry
Publishing Registry
Publishing Registry
Query Services
Access to various services
Data Service
Analysis Service
Virtual Observatory Client
10
Integration of standard protocols
11
Interconnected VOs in the World
Canada VO
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

13
JVO is seen from AstroGrid
14
Elapsed time to querying US VOs
Best Records -- Some servers may be overloaded
from time to time
15
Performance Improvement

• Memory consumption was too large.
• AXIS implementa-tion
• Introduced memory garbage?stable operation

16
Workflow Description Language

• Based on BPEL4WS
• Variable definition
• Controls (Loop, Condition)
• Parallel execution
• Invoke external services
• Invoke built-in Java Classes

17
(No Transcript)
18
QSO searches
Such results can be obtained only in a few
minutes
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)

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

21
Reference URLs

• JVO http//jvo.nao.ac.jp/index-e.html
• IVOA http//www.ivoa.net/
• there are links to other VO projects in the
  world

22
(No Transcript)
23
(No Transcript)
24
(No Transcript)
25
(No Transcript)
26
(No Transcript)
27
(No Transcript)
28
(No Transcript)
29
(No Transcript)
30
(No Transcript)
31
(No Transcript)
32
(No Transcript)
33
(No Transcript)
34
(No Transcript)
35
(No Transcript)