PDS_VERSION_ID        = PDS3
LABEL_REVISION_NOTE   = "2008-05-01; E.NEEFS (BIRA-IASB) v1.0"
RECORD_TYPE           = STREAM

OBJECT                = TEXT
  INTERCHANGE_FORMAT  = ASCII
  PUBLICATION_DATE    = 2008-05-01
  NOTE                = "Description of contents in the EXTRAS
                         subdirectory."
END_OBJECT            = TEXT
END

           Content Description of the EXTRAS Subdirectory

The EXTRAS subdirectory is divided into subdirectories, corresponding to the
subdirectories in the DATA and BROWSE directories. This means that there
is a subdirectory for each observation. These subdirectories contain
animated spectra (animated GIF format) of the observation. They can be
compared to the GIF files that can be found in the BROWS directory, since 
they contain the same information but in a animated representation rather
than a static one.

The structure of the EXTRAS directory is as follows :

FILE                    DESCRIPTION
----                    --------------------------------------------------

EXTRINFO.TXT            This file

[yyyymmdd_Maa_tbb]      Subdirectories per observation
     |                  yyyymmdd = year, month, day
     |                  aa = MTP number
     |                  t = observation type (C:sunset, L:sunrise)
     |                  bb = number of observation in current MTP
     |
     |--[FILE.GIF]      Animated spectrum
     |
     |--[FILE.LBL]      Corresponding label