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, 2007-05-24Marek Biskup, Pi Stars Web Interface 2 Outline Star data Interface Star search Lightcurve view Summary

3. Wilga, 2007-05-24Marek Biskup, Pi Stars Web Interface 3 „Pi” Stars The database „Pi 2004-2005” 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, 2007-05-24Marek 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, 2007-05-24Marek Biskup, Pi Stars Web Interface 5 Database Schema Measurements information Additional information about frames, external stars, etc

6. Wilga, 2007-05-24Marek 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, 2007-05-24Marek Biskup, Pi Stars Web Interface 7 Search form Change database

8. Wilga, 2007-05-24Marek Biskup, Pi Stars Web Interface 8 Advanced search Variability Types

9. Wilga, 2007-05-24Marek Biskup, Pi Stars Web Interface 9 Search results (1)

10. Wilga, 2007-05-24Marek Biskup, Pi Stars Web Interface 10 Search results (2) Limited number of stars per plot

11. Wilga, 2007-05-24Marek Biskup, Pi Stars Web Interface 11 Interactive searching Mouse-drawn rectangle Click on a star to see its light curve

12. Wilga, 2007-05-24Marek Biskup, Pi Stars Web Interface 12 Light curve view The lightcurve Star’s properties Lightcurve form Advanced properties

13. Wilga, 2007-05-24Marek 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, 2007-05-24Marek Biskup, Pi Stars Web Interface 14 Interactive light-curving Mouse-drawn rectangle Click Observation properties

15. Wilga, 2007-05-24Marek 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, 2007-05-24Marek 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, 2007-05-24Marek 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