The OMAG directory is divided into two subdirectories.  These directories
(24S and HIRES) contain either 2 spin period averages with data output on
single spin period centers (approximately 24 second averages with data output
approximately every 12 seconds) or full resolution data for orbits 1121 - 1160.
Data are organized into single orbit files which follow the naming
convention: ORBxxxx.FFD where xxxx is a four digit orbit number. In addition,
for each data file there is a header file ORBxxxx.FFH, a label file which
describes the file characteristics, such as number of records, record length,
etc. called ORBxxxx.LBL.  Also contained in the OMAG directory are the files
COORDS.TXT, DSPROC.TXT, INST.TXT and PARM.TXT which are templates. The
COORDS.TXT describes the various coordinate systems, the DSPROC.TXT maps data
processing software to PDS datasets, the INST.TXT describes the OMAG instrument
and the PARM.TXT describes the measured and derived parameters of the OMAG
experiment .  In addition, each file has a .LBL file which describes the file
characteristics.  A file called CATALOG.CAT in the CATALOG directory contains
all of the PDS catalog templates on this CD-ROM.

OMAG -|
      | - 24S (contains low resolution OMAG data files)
      |
      | - HIRES (contains high resolution OMAG data files)
      |
      | - DSPROC.TXT (specificies software used to process this dataset)
      |
      | - INST.TXT (describes the Magnetometer instrument)
      | 
      | - PARM.TXT (describes the instrument and dataset parameters)