The CATALOG directory contains mission, instrument host, instrument,
reference, personnel, and data set PDS catalog objects for this
archive volume.  The files follow the 'streamlined' format adopted by
the Planetary Data System (PDS) in late 1993 and documented in the
Planetary Data System Standards Reference (Version 3.2, 24 July
1995; JPL D-7669, Part 2).

CATINFO.TXT  - This file.  A brief description of the files contained
               within the CATALOG directory.

CHECKOUT.CAT - A description of the Reduced Data Record (RDR) data set.
               Refers to initial checkout data.

EARTH1.CAT   - A description of the Reduced Data Record (RDR) data set.
               Refers to data from the first Earth encounter.

EARTH2.CAT   - A description of the Reduced Data Record (RDR) data set.
               Refers to data from the second Earth encounter.

GASPRA.CAT   - A description of the Reduced Data Record (RDR) data set.
               Refers to data of Gaspra.

IDA.CAT      - A description of the Reduced Data Record (RDR) data set.
               Refers to data of Ida. 

INST.CAT     - A description of the Photopolarimeter/Radiometer (PPR)
               instrument basic design, functional characteristics,
               and modes of operation.

INSTHOST.CAT - A description of the Galileo spacecraft.

MISSION.CAT  - A brief description of the mission.  It includes a
               chronology of events, definition of mission phases,
               and mission objectives.

PERSON.CAT   - A listing of key people involved in the analysis and
               production of the PPR experiment data.

REF.CAT      - A listing of references used elsewhere in the streamlined
               templates and of references that might be generally
               useful in working with these PPR data.

SL9.CAT      - A description of the Reduced Data Record (RDR) data set.
               Refers to data of the SL9/Jupiter impacts.

VENUS.CAT    - A description of the Reduced Data Record (RDR) data set.
               Refers to data from Venus encounter.