The data from the Galileo Photopolarimeter (PPR) is stored in various
sub-directories according to target.  The file names are given by the
spacecraft clock-count of the first record of the data file.  The
following directory tree shows the location of the various data file
types with a brief explanation of the file contents.


      CD-ROM                Root level of the CD
      |
      |- DATA               Top of data path: You Are Here
           | 
           |-[CALIB]    
                |
                |-[EARTH1]  Calibration data from first Earth encounter.
                |
                |-[EARTH2]  Calibration data from second Earth encounter.