The sequence of the unit value components is 1) date and time, 2) the unit value, 3) the precision of the data value as reported. This value is a 1-digit number representing the number of places of accuracy, 4) the SourceFlags indicate the source of the unit value, 5)the remark code of the daily value. The definition of the data stream data elements. The data stream that is comprised of may unit values, each of which contain the data elements defined in the StreamDefinition.