Glossary

• cfitsio (http://heasarc.gsfc.nasa.gov/fitsio/)

  Library of C and Fortran subroutines for reading and writing data files in FITS data format.

• FITS (http://fits.gsfc.nasa.gov/)

  Flexible Image Transport System.

• FTOOLS (http://heasarc.gsfc.nasa.gov/ftools/)

  Collection of utility programs to create, examine, or modify data files in the FITS data format.

• GNU (http://www.gnu.org/)

  A free Unix-like operating system.

• HEASARC (http://heasarc.gsfc.nasa.gov/)

  High Energy Astrophysics Science Archive Research Centre.

• Python (http://www.python.org/)

  Dynamic programming language that is used in a wide variety of application domains.