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Introduction to FITS: Data in Numbers, Tables, and Pictures

Get an overview of the Flexible Image Transport System (FITS) and learn how to work with data in various formats, including numbers, tables, and pictures. Explore the features of FITS and understand its significance in astronomy and scientific data analysis.

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Introduction to FITS: Data in Numbers, Tables, and Pictures

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  1. Numbers, Tables, Pictures:A Prerequisite to DS9 • Get your data in FITS! • Measure numbers; See pictures • Seeing through Tables • Mess’n with the numbers

  2. The FITS Support Office • at NASA/GSFC • What is FITS? • The standard data format used in astronomy • Stands for 'Flexible Image Transport System' • Endorsed by NASA and the International Astronomical Union • Much more than just another image format (such as JPG or GIF) • Used for the transport, analysis, and archival storage of scientific data sets consisting of: • Multi-dimensional arrays (1-D spectra, 2-D images, 3-D data cubes, etc.) • Tabular data containing rows and columns of information http://fits.gsfc.nasa.gov/fits_home.html

  3. How Do You Like Your Data? Cool Pic, huh?

  4. Resulting Image Data Color Tables

  5. Out=log10(In) Out=In Out=In2 Mess’n With Tables Out=In1/2 Out=In*2

  6. Boxcar Smoothing Mess’n With Numbers 11x11 7x7 3x3 /9 /49 /121

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