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SAI Catalog Access Service (SAI CAS)

Oleg Bartunov SAI VO group, 2006. SAI Catalog Access Service (SAI CAS). The first RVO data center with online access to the major astronomical catalogues. Sternberg Astronomical Institute Moscow University. Network infrastructure and management - 1991

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SAI Catalog Access Service (SAI CAS)

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  1. Oleg Bartunov SAI VO group, 2006 SAI Catalog Access Service(SAI CAS) The first RVO data center with online access to the major astronomical catalogues. Sternberg Astronomical Institute Moscow University

  2. Network infrastructure and management - 1991 Astronet – leading russian knowledge base on astronomy (150.000/670.000 month) 2001- Database development (ORDBMS PostgreSQL) 1996- GiST PgSphere data type - 2003 Q3C sky indexing algorithm – 2005 SAI general line of development - 2006 CAS – 2006 SAI ITAG – group of professional astronomers with strong IT background

  3. CAS STRUCTURE

  4. CAS DB

  5. Q3C – sphere segmentation

  6. Q3C – ConeSearch, sphere view

  7. Q3C – ConeSearch, cube view(42,0,1arcsec)

  8. Q3C – ConeSearch performance

  9. Q3C – Xmatch performanceUSNO-B1 1arcsec

  10. SAI CAS ConeSearch • USNO-B1 – 1 billion • 2MASS xsc – 1.6 mln • 2MASS psc – 250 mln • Tycho2 – 2,5 mln • UCAC 2 - 50 mln • NOMAD ..... • DENIS .... OUTPUT: VOTable, HTML, CSV, ASCII HP rx1620, Dual Itanium 2 1.6 GHz, 8Gb RAM, SmartArray 64XX HP controller, SATA-I 1.2 Tb, Linux 2.6.15 SMP

  11. SAI CAS

  12. SAI CAS

  13. SAI CAS

  14. MORE DATA New Catalogs ( NOMAD, DENIS, SDSS) More hardware MORE SERVICES Interactive user interface (MySpace) Crossmathing public service Visualization DEVELOPMENT Integration with existing VO applications Better algorithms, better infrastructure Setup RVO Registry What's next ?

  15. Oleg Bartunov SAI VO group, 2006 SAI Catalog Access Service(SAI CAS) The first RVO data center with online access to the major astronomical catalogues. Sternberg Astronomical Institute Moscow University

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