This directory contains a single file (CATALOG.CAT) which contains all of
the metadata associated with this CD-ROM. The metadata is organized into
hierarchical templates which can be loaded into a relational database. The
component templates have been arranged in this file from the most general to 
most specific, and by instrument. First is the mission and spacecraft
related metadata; next are the coordinate system and software templates, 
then for OEFD, the instrument, 24 second dataset, full resolution dataset,
data processing, and the parameter templates, for OMAG, the instrument, 
24 second dataset, full resolution dataset, processing, and parameter templates,
and for the ephemeris, the dataset, processing and parameter templates.
Each template is separated by a string of '=' for ease of searching the 
CATALOG.CAT file with an editor.

Template         Contents
_____________________________________________________________
mission          describes the Pioneer Venus mission
spacecraft       describes the Pioneer Venus Orbiter component of the mission
instrument       describes an instrument
coordinate       describes the coordinate systems (if any).
dataset          describes a PDS dataset
processing       describes the path between data products (processing levels)
parameter        describes instrument and dataset parameters
software         describes data processing software and processing steps