PDS_VERSION_ID                   = PDS3
RECORD_TYPE                      = STREAM
OBJECT                           = TEXT
  PUBLICATION_DATE               = 2007-10-01
  NOTE                           = "Description of the DATA
                                    directory contents for an 
                                    ODY THEMIS archive volume."
END_OBJECT                       = TEXT
END


                     DATA Directory Contents

The DATA directory contains 2001 Odyssey THEMIS standard data products.
One or more of the following files are found in this directory.

DATAINFO.TXT - The file you are reading.

ODTIBVOL.CAT - High-level catalog object for the ODY THM IR-BTR logical
               volume; only available in the virtual volume.

ODTIEVOL.CAT - High-level catalog object for the ODY THM IR-EDR logical
               volume; only available in the virtual volume.

ODTIRVOL.CAT - High-level catalog object for the ODY THM IR-RDR logical
               volume; only available in the virtual volume.

ODTVBVOL.CAT - High-level catalog object for the ODY THM VIS-ABR logical
               volume; only available in the virtual volume.

ODTVEVOL.CAT - High-level catalog object for the ODY THM VIS-EDR logical
               volume; only available in the virtual volume.

ODTVRVOL.CAT - High-level catalog object for the ODY THM VIS-RDR logical
               volume; only available in the virtual volume.


THEMIS Standard Data Products are stored in sudirectories named for
the data contents following the pattern "AoooxxPPP".  Each subdirectory 
contains either SPECTRAL_QUBE data files or IMAGE named following the 
pattern "AooooonnnPPP.EXT".  Subdirectory and file name patterns are case 
insensitive and defined as

    A      is a 1 letter description of the type of image collected; 
           [ I = infrared image; R = infrared reset image ; S = infrared 
           shutter image ; V = visible image ]
    ooooo  is the 5-digit mission orbit number when the data was 
           collected, zero padded
    oooxx  is the first 3 numbers of the mission orbit number when the 
           data was collected, zero padded, followed by a placeholder 
           representing the remaining digits of the mission orbit number
    nnn    is the 3-digit image sequence number indicating the order that
           images were collected within a given orbit
    PPP    is a 3 letter description of the processing level of the data 
           products;  [ ABR = visible apparent brightness record; 
           BTR = infrared brightness temperature record; EDR = raw data; 
           RDR = radiometrically calibrated data ].
    .EXT   is a 3 letter suffix indicating the PDS file type; [ IMG = IMAGE ;
           QUB = SPECTRAL_QUBE ].


Each subdirectory that contains raw, infrared data QUBEs also contains
a TLM.FMT file which lists the field names contained in the TLM table
embedded within the IR-EDR QUBE header.

A single text file (NODATA.TXT) will be present if the subdirectory is 
known to contain no data.