PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2001-09-15 NOTE = "Description of the INDEX directory contents for this NEAR NLR archive volume." END_OBJECT = TEXT END INDEX Directory Contents The INDEX directory contains tabular index files, accompanied by detached PDS labels, for the data products on this volume. It also contains cumulative index tables for products on this volume and on other NEAR NLR archive volumes. The following files are found in this directory. INDXINFO.TXT - The file you are reading L2INDEX.LBL - PDS label for L2INDEX.TAB L2INDEX.TAB - Index table for Level 2 products on this volume only. L3INDEX.LBL - PDS label for L3INDEX.TAB L3INDEX.TAB - Index table for Level 3 products on this volume only. L2CMIDX.LBL - PDS label for L2CMIDX.TAB L2CMIDX.TAB - Cumulative index table for Level 2 products on this volume and on other NLR archive volumes Notes on Using the Index Tables An index table contains one row (record) for each data product it describes. 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 file with extension ".LBL" and the same name as an index table is a PDS label file that 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.