PDS_VERSION_ID                 = PDS3
RECORD_TYPE                    = STREAM
SPACECRAFT_NAME                = GALILEO_ORBITER
INSTRUMENT_NAME                = "NEAR INFRARED MAPPING SPECTROMETER"
INSTRUMENT_ID                  = NIMS
OBJECT                         = TEXT
   NOTE                        = "Description of the INDEX directory on
                                 the NIMS Cube CD-ROM set"
   PUBLICATION_DATE            = 1998-12-10
END_OBJECT                     = TEXT
END

The INDEX directory contains various tables summarizing the data in the
cubes on this CDROM.  Each table is accompanied by a detached PDS label
with the same name and a .LBL extension, which contains a complete
description of the structure of the table. Section 6, "Index Files" of
the VOLINFO.TXT file found in the DOCUMENT directory provides complete
documentation on the content of each of the index tables described below. 

Volumes after the first one in this series will have, in addition to
the index files for that volume, cumulative index files for all products
up to that point.  However, since Galileo phase 2 (Jupiter) operations
are quite different from phase 0 (cruise) operations, certain index tables
from the two phases cannot be combined.

INDEX.TAB:  The index table contains an entry for each cube or tube on
the CD.  Each entry includes information about filenames and paths,
time range of data, target, instrument status, cube or tube size and
selected geometry ranges.

OBSCAT.TAB:  The OBServation CATalog table contains an entry for each
phase 2 observation for which data is present on the CD.  (This includes
all observations of Jupiter and its satellites during the G1 Encounter.)
Each entry includes the observation name, spacecraft clock range,
starting universal time, principal target and various NIMS instrument
parameters.  It is used by ISIS NIMS cube generation software to point
to the EDRs containing data for an observation.  NOTE: this table
is used for NIMS cube and tube generation, and does not follow the
recommended PDS standard for ASCII tables which requires that strings
be quoted.

OBSCAT0.TAB:  This table is the phase 0 version of OBSCAT.TAB and
contains fewer parameters.  It includes entries for observations of
Gaspra, Ida and from the Shoemaker-Levy 9 encounter.  (See NOTE above
for OBSCAT.TAB.)

BOOMCAT.TAB:  The BOOM CATalog table contains an entry for each boom
obscuration file (currently just one) needed to process NIMS data since
the first encounter with Venus.  Each entry includes the filename, the
CD volume where it resides, and the time interval of its applicability.