The CATALOG directory contains Files that give a top-level understanding of the mission, spacecraft, instruments, and data sets. (written by E. NEEFS) DATASET.CAT : description of the contents of the actual data set INST.CAT : points to the INSTRUMENT_DESC file in the DOCUMENT directory. For a concise SOIR INSTRUMENT description and references the SPICAV Flight User Manual INSTHOST.CAT : overview of the spacecraft subsystems MISSION.CAT : overview of mission phases and mission objectives REFERENCE.CAT : reference documents list RELEASE.CAT : description of the contents of the actual release SOFTWARE.CAT : not used in the SOIR archive