PDS_VERSION_ID      = PDS3
RECORD_TYPE         = STREAM
OBJECT              = TEXT
 INTERCHANGE_FORMAT = ASCII
  PUBLICATION_DATE  = 2013-10-11
  NOTE              = "Description of contents of the EXTRAS directory"
END_OBJECT          = TEXT
END

This directory includes the following file:

FORTNIGHT_CALCULATION.XLS: This is a supporting document for 
ONCE_UPON_A_FORTNIGHT.PDF, JPL D-61501, containing the numerical content 
described therein, as a Microsoft Excel file. This is the original version 
of the file FORTNIGHT_CALCULATION.PDF, located in the DOCUMENT directory.