| Quick-Start Introduction to PDS Archiving |
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CATALOG.CAT
This file links together all the catalog object files created to document the
mission or observing program, the instrument and other global aspects of the
dataset.
The file contains a CATALOG object description; the
sub-OBJECTS in the CATALOG are just the various catalog objects
(MISSION, INSTRUMENT, etc.).
It is often considerably
more convenient to create and store these catalog objects in
separate files, however, so the common procedure is to collect those separate
files into the CATALOG subdirectory, then include pointers to the individual
files in the CATALOG object of this file.
(Pointers to objects begin with the ^ character and have "_CATALOG" appended.)
Appendix A
of the PDS Standards Reference gives detailed examples of
CATALOG.CAT files of both types.
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