The DATA directory is divided into six subdirectories. The data directories (OMAG and OEFD) are further subdivided into sample rate or resolution directories. The remaining directories contain ancillary information which is useful for both OMAG and OEFD data regardless of resolution. Ephemeris data can be found in the EPHEM directory, OEFD phase information and OMAG offsets can be found in the PHASEOFF directory, OMAG and OEFD instrument status parameters can be found in the INSTSTAT directory, and engineering parameters such as temperatures can be found in the ENGR directory. Also contained in the DATA directory is the SOFTWARE.TXT file and in the DATA/OMAG directory the COORDSYS.TXT file. These files contain descriptions of the software and coordinate system used to process the OMAG and OEFD data files on this CD-ROM. DATA - | | - ENGR (contains Engineering Data files) | | - EPHEM (contains Ephemeris Data files) | |- INSTSTAT (contains Instrument Status Data word files) | |- OEFD -| | | - 24S (contains low resolution OEFD data files) | | | | - HIRES (contains high resolution OEFD data files) | | - OMAG -| | | - 24S (contains low resolution OMAG data files) | | | | - HIRES (contains high resolution OMAG data files) | | - COORDS.TXT (describes coordinate systems used by PVO) | |- PHASEOFF (contains Instrument Phase and Offset data files) | | |- SOFTWARE.TXT (describes software used to process these data)