PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM RELEASE_ID = 0005 REVISION_ID = 0000 OBJECT = TEXT PUBLICATION_DATE = 2010-12-17 NOTE = "Description of the CATALOG directory contents for the NPD instrument data set." END_OBJECT = TEXT END CATALOG Directory Contents The CATALOG directory contains high-level catalog objects for the Venus Express ASPERA-4 archive volume. The following files are found in this directory. CATINFO.TXT - The file you are reading. INST.CAT - High-level catalog object for the Venus Express ASPERA-4 instrument. DATASET.CAT - High-level catalog object for the ASPERA-4 Neutral Particle Detector (NPD) raw EDR data set. RELEASE.CAT - High-level release object for the ASPERA-4 Neutral Particle Detector (NPD) data sets. MISSION.CAT - High-level catalog object for the Venus Express Mission. INSTHOST.CAT - High-level catalog object for the Venus Express spacecraft. PERSON.CAT - High-level catalog object for personnel associated with the VEX ASPERA-4 archive. REF.CAT - High-level catalog object for references cited in the other catalog object files. TARGET.CAT - High-level catalog object for listing the key physical properties of the targets of research.