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Web Interface for Star Databases of the „Pi of the Sky” Experiment Marek Biskup Warsaw University On behalf of the „Pi of the Sky” collaboration.

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Presentation on theme: "Web Interface for Star Databases of the „Pi of the Sky” Experiment Marek Biskup Warsaw University On behalf of the „Pi of the Sky” collaboration."— Presentation transcript:

1 Web Interface for Star Databases of the „Pi of the Sky” Experiment Marek Biskup Warsaw University On behalf of the „Pi of the Sky” collaboration

2 Wilga, Marek Biskup, Pi Stars Web Interface 2 Outline Star data Interface Star search Lightcurve view Summary

3 Wilga, Marek Biskup, Pi Stars Web Interface 3 „Pi” Stars The database „Pi ” 11 months of operation 2 cameras ~2 million stars per camera ~200 observations per star => Almost 1 billion of records (almost 200GB) Online databases for ongoing observations Implementation in PostgreSQL

4 Wilga, Marek Biskup, Pi Stars Web Interface 4 Other Catalogs Asas – star variability survey Gcvs – variable stars catalogue Tycho – nearly all stars up to 11 m All fits in the same database schema

5 Wilga, Marek Biskup, Pi Stars Web Interface 5 Database Schema Measurements information Additional information about frames, external stars, etc

6 Wilga, Marek Biskup, Pi Stars Web Interface 6 Web interface Modern technologies Php Javascript CSS Smarty DHTML AJAX Configurable Adaptable for other catalogs (Tycho, ASAS, GCVS)

7 Wilga, Marek Biskup, Pi Stars Web Interface 7 Search form Change database

8 Wilga, Marek Biskup, Pi Stars Web Interface 8 Advanced search Variability Types

9 Wilga, Marek Biskup, Pi Stars Web Interface 9 Search results (1)

10 Wilga, Marek Biskup, Pi Stars Web Interface 10 Search results (2) Limited number of stars per plot

11 Wilga, Marek Biskup, Pi Stars Web Interface 11 Interactive searching Mouse-drawn rectangle Click on a star to see its light curve

12 Wilga, Marek Biskup, Pi Stars Web Interface 12 Light curve view The lightcurve Star’s properties Lightcurve form Advanced properties

13 Wilga, Marek Biskup, Pi Stars Web Interface 13 Light curve Different colors mark different fields of observation Small dots mark points from the other camera Other camera

14 Wilga, Marek Biskup, Pi Stars Web Interface 14 Interactive light-curving Mouse-drawn rectangle Click Observation properties

15 Wilga, Marek Biskup, Pi Stars Web Interface 15 Lightcurve form AJAX-like picture fetching Bookmarking support Data exporting CVS HTML table ROOT macro Bad measurement elimination Field selection

16 Wilga, Marek Biskup, Pi Stars Web Interface 16 Switching between star databases Direct – from the search form From a light curve view Search by coordinates (2’ around) Direct link to the same star in other catalogs Advanced star’s properties

17 Wilga, Marek Biskup, Pi Stars Web Interface 17 Summary Pi of the Sky has a large Star Database, which will be published soon Existing star databases are wrapped with the same interface Star data from all the catalogs can be easily browsed


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