--- header unit 0: primary ---
SIMPLE = T / Written by IDL: Fri Jan 11 11:25:43 2008
BITPIX = -32 / Number of bits per data pixel
NAXIS = 2 / Number of data axes
NAXIS1 = 64
NAXIS2 = 64
EXTEND = T / FITS data may contain extensions
DATE = '2008-01-11' / Creation UTC (CCCC-MM-DD) date of FITS header
COMMENT FITS (Flexible Image Transport System) format is defined in 'Astronomy
COMMENT and Astrophysics', volume 376, page 359; bibcode 2001A&A...376..359H