PDS_VERSION_ID = PDS3
LABEL_REVISION_NOTE = "V1.0"
RECORD_TYPE = STREAM
OBJECT = TEXT
NOTE = "Description of INDEX subdirectory content"
PUBLICATION_DATE = 2012-02-15
END_OBJECT = TEXT
INDEX subdirectory content
The INDEX directory contains tabular index files describing the content of
the data volume. Each tabular index is accompanied by a detached PDS label.
The index files present depend upon the files in the data volume.
The files included in the INDEX subdirectory are:
INDXINFO.TXT: the file you are reading.
INDEX.TAB: main INDEX table listing all label files.
INDEX.LBL: PDS Label for the main INDEX table.
N.B. The INDEX.TAB file contains columns for the RELEASE_ID and REVISION_ID.
This is a system used by the PSA to incrementally build up a data set and to
provide a mechanism by which files can be updated without reconstructing the
entire data set. The system is not used by all missions. For those missions
not using the concept, a default value of RELEASE_ID=0001 REVISION_ID=0000
is used in the INDEX label and table.
Notes on Using the Index Tables
Each index table contains one row (record) for each data product on the
volume. The table is formatted so that it can be read directly into many data
management systems. All fields are separated by commas and character fields
are enclosed in double quotation marks ("). Character fields are left
justified and numeric fields are right justified. Each record ends with ASCII
carriage return and line feed characters. This allows the table to be treated
as a fixed length record file on computers that support this file type and as
a normal text file on other computers.
The PDS label file for each table describes the content and structure of the
fields in the index table. This description includes the name of each field,
its format, and a brief definition. The values for start byte and number of
bytes listed in the label file do not include commas between fields or
quotation marks surrounding character fields.
Name Last modified Size Description
Apache/2.2.15 (Scientific Linux) Server at pdssbn.astro.umd.edu Port 443
Parent Directory -
checksum.lbl 04-May-2015 14:45 3.4K [PDS label]
checksum.tab 04-May-2015 14:45 8.3K [Table file]
index.lbl 19-Feb-2013 04:47 4.5K [PDS label]
index.tab 19-Feb-2013 04:47 3.2K [Table file]
indxinfo.txt 15-Feb-2012 05:54 2.2K