CCSD3ZF0000100000001NJPL3IF0PDS200000001 = SFDU_LABEL
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 Phase 2 EDR CD-ROM set"
   PUBLICATION_DATE            = 1998-06-01
END_OBJECT                     = TEXT
END

The INDEX directory contains various tables summarizing the data in the
EDRs on this CDROM, and pointing to various ancillary files.  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 structure of
each of the index tables described below.

EDR volumes after the first also contain cumulative versions of each
of the index tables, as well as tables for that volume alone.  The
cumulative tables may have changes to entries from previous volumes,
and should be considered to supersede them.  This allows for
corrections to errors in the tables, and for improved or corrected
data or ancillary files on later volumes to supersede earlier ones.

EDRCAT.TAB:  The EDR CATalog table contains an entry for each EDR on the
CD.  Each entry contains various information including EDR, Vicar and
Spike file name information, target and mission status descriptions and
various NIMS instrument parameters. 

CUMINDEX.TAB:  Cumulative version of EDRCAT.TAB.

CEDRCAT.TAB:  This is a catalog table for corrupt EDRs to be found in
the [CORRUPT...] tree.  It has the same format as EDRCAT.TAB.

CUMCINDX.TAB:  Cumulative version of CEDRCAT.TAB.

OBSCAT.TAB:  The OBServation CATalog table contains an entry for each
observation for which data is present on the CD.  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.

CUMOBSCT.TAB:  Cumulative version of 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.