The low resolution (12 second averaged UADS) dataset is stored in single orbit ASCII data files which have been organized into 100-orbit subdirectories. All directories beneath this directory contain data files which are members of this dataset. This directory also contains a description of the low resolution dataset in the file DATAINFO.TXT. The PDS catalog templates associated with this dataset are located in the CATALOG directory off the root of this CD-ROM in files with extension CAT.