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Making Press Release Astronomical Images NVO Compliant

Making Press Release Astronomical Images NVO Compliant. Lisa M. Frattare Space Telescope Science Institute Communicating Astronomy with the Public June 14 - 17, 2005 ESO – Garching. NVO.

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Making Press Release Astronomical Images NVO Compliant

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  1. Making Press Release Astronomical Images NVO Compliant Lisa M. FrattareSpace Telescope Science Institute Communicating Astronomy with the PublicJune 14 - 17, 2005ESO – Garching

  2. NVO National Virtual Observatory: A U.S. effort to systematically organize and make available astronomical data, images, and other content so that it can be retrieved and used by many users. Similar to VO (European effort) CAP - ESO Garching June 05 L. Frattare

  3. Simple Image Access (SIA) Protocol Standards to Meet the Compliance Requirements This is important for those who manufacture astronomical images from astronomical data (observatory, amateurs, image processors) CAP - ESO Garching June 05 L. Frattare

  4. Image Compliance with NVO/VO NVO/VO compliance: press release images need World Coordinate System (WCS) CAP - ESO Garching June 05 L. Frattare

  5. Which images to include • No artwork • - No multi-image layout- No moving targets (SS objects) CAP - ESO Garching June 05 L. Frattare

  6. Software to Measure WCS A. Compare two images: • Reference image – FITS data(WCS) • Target image – press release TIFF B. Prepping the images: • Filter Selection • Combining pairs of like-filters CAP - ESO Garching June 05 L. Frattare

  7. FITS file prepping Recommend retrieving strongest filter (i.e. HST: broadband R, or Halpha) Combine pairs of data to remove cosmic rays (still retain the WCS) CAP - ESO Garching June 05 L. Frattare

  8. CR CAP - ESO Garching June 05 L. Frattare

  9. CR CAP - ESO Garching June 05 L. Frattare

  10. CR-Combined CAP - ESO Garching June 05 L. Frattare

  11. TIF file prepping Recommend Splitting Channels(if necessary) CAP - ESO Garching June 05 L. Frattare

  12. Split Channelsnarrowband CAP - ESO Garching June 05 L. Frattare

  13. Split Channelsnarrowband CAP - ESO Garching June 05 L. Frattare

  14. Wcs. wcs.computewcs

  15. Fit

  16. Transformation Transformation Coefficients Voila!WCS CAP - ESO Garching June 05 L. Frattare

  17. - Python-based GUI to run on all platforms - Requires Python Imaging Library (PIL) and mathplotlib - Testing Summer 2005 on STScI OPO images database - Image Comparison for Calculated WCS - Anticipated Release Date – 2006 Personnel (at STScI) • Frank Summers – project manager, database and web service development • Lisa Frattare – tool set development • Zolt Levay – HST PR procedure development • Jonathan Eisenhamer – web service deployment • Phil Hodge – programming • Kaushala Bandara (U. Toronto) – intern processing of HST PR archive images • Carol Christian – NVO EPO coordinator Requirements, Future Plans & Credits CAP - ESO Garching June 05 L. Frattare

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