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
           | 
           |-[CHECKOUT] Contains data from the initial Instrument Checkout.
           |
           |-[EARTH1]   Data from first Earth encounter.
           | 
           |-[EARTH2]   Data from second Earth encounter.
           |
           |-[GASPRA]   Data from Gaspra encounter.
           |
           |-[IDA]      Data from Ida encounter.
           |
           |-[SL9]      Data from SL9/Jupiter impacts.
           |
           |-[VENUS]    Data from Venus encounter.