PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2011-09-15 NOTE = "Description of the CATALOG directory contents for the MASCS uncalibrated data archive volume." END_OBJECT = TEXT END This subdirectory contains the catalog object files for the entire volume. The following files are included in the catalog subdirectory. CATINFO.TXT: Identifies and describes of function of each file in the catalog directory (this file). INST.CAT: Describes physical attributes of the MASCS instrument and provides relevant references to published literature. INSTHOST.CAT: Describes the MESSENGER spacecraft. MISSION.CAT: Describes the scientific goals and objectives of the MESSENGER program. PERSON.CAT: Lists and provides contact information for the people involved with the MASCS instrument on the MESSENGER mission. REF.CAT: Contains the reference objects. These reference additional documents that may be useful to the person using the MASCS EDR. UVVS_DS.CAT, VIRS_DS.CAT: Describes the general content of the MASCS/VIRS and MASCS/UVVS datasets, and includes information about the duration of the mission and the person or group responsible for producing the data.