There are two types of metadata associated with this Product Set.  The Collection metadata are necessary for correct interpretation the data in the HDF granules.  The User Guide contains all the descriptive information about the collection as a whole.  The ESDTDescriptor file formally defines indexing terms and the relationship between the collection and the granules. The Radiation Code intended to be compiled and executed by users.   Because appropriate software for generating complete files in HDF format is not available at this time, some of the data and matadata for each Granule is included in an HTML file with the same filename, and the ODL .