PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM

OBJECT                = TEXT
  PUBLICATION_DATE    = 2011-09-20
  NOTE                = "Description of contents of INDEX directory"
END_OBJECT            = TEXT
END

The INDEX directory contains index tables that list every EDR and CDR
data product in the archive. The index tables are organized by month
and are of the form EDRyymm_INDEX.TAB and CDRyymm_INDEX.TAB. Each index
table is accompanied by a PDS label, EDRyymm_INDEX.LBL or
CDRyymm_INDEX.LBL, that describes the format of the table. CDR data
products that are not time-based are listed in a separate index file,
CDRSTATIC_INDEX.TAB, accompanied by the PDS label CDRSTATIC_INDEX.LBL. When 
a month is split across volumes, the DOY range is appended to the index 
table name (e.g., EDR0808_214_221_INDEX.TAB contains a list of EDRs from DOY 
214 through 221 in August 2008. August 2008 EDRs for DOY 222+ can be found 
on the next volume in EDR0808_222_244_INDEX.TAB).

The index tables are ASCII text files. Each line (record) in a table
contains information about a data product in the archive. The record
includes the path and file name of the PDS label that describes the
data product. 

Each line in a .TAB file consists of a set of fixed-length fields
delimited by commas. The associated .LBL file tells the start byte,
number of bytes, and data type of each field. Character fields are
enclosed in double quotation marks (").