Design and Implementation of Planetary Data Cataloging Model

According to the standard specification,planetary data characteristics of Planetary Data System(PDS) and PDS metadata model,this paper designs a planetary data cataloging model.By extending traditional data cataloging model to support data show and space inquires,using the method of object-relational database to store cataloging information to realize data management,filing and distribution.The planetary data cataloging index system validates the correctness and effectiveness of the model,and shows that this model can provide a consistent directory access interface,makes the user quickly and easily to retrieve the interested planet data.