The invention provides a bright white refractory roofing granule, comprising a ceramic material formed from a substantially homogenous mixture of a ceramic-forming clay, sintering material, and optionally comprising silica particles, and other potential additives, said bright white refractory roofing granule having a total solar reflectance of at least 0. In the space solar cell, a plurality of openings are formed in the dielectric layer for establishing an electrical connection between the back surface electrode and the semiconductor substrate, and a ratio of an area occupied by the openings relative to an area of the back surface is within a range from 0. A portion of the target data corresponding to the source tag is then generated from the hierarchical memory objects. The system-in-a-package device uses conducting holes of the bearing substrate as contacts with the exterior. Accordingly, the useful lifetime of the processor unit can be extended. The method also includes determining a count of a number of unclassified sessions associated with a particular client identifier and determining a total number of sessions associated with the particular client identifier.