Stop date of aggregation

Each measurement is taken to represent an interval of duration equal to the sampling interval (In this data set, the sampling interval is 10 seconds). This attribute represents the date of the end of the interval represented by the last measurement in the aggregation. This attribute represents only an exterior limit of time period, not any internal gaps.

ATTRIBUTE-ACCURACY

Times are derived from the volunteers watch, and are considered to be accurate within a couple of minutes.

DOMAIN

A positive integer presented as YYYYMMDD, where YYYY represents the year, MM represents the month within the year, and DD represents the day within the month.