PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT INTERCHANGE_FORMAT = ASCII PUBLICATION_DATE = 2007-05-25 NOTE = "Description of contents in the DOCUMENT subdirectory." END_OBJECT = TEXT END Content description of DOCUMENT Subdirectory ctxsis.txt - CTX SIS in ASCII form. ctxsis.pdf - CTX SIS in Adobe Portable Document Format. archsis.pdf - Archive Volume SIS in Adobe Portable Document Format.