Results of 2433 intensified CCD observations of double stars , made with the 26-inch refractor of the U.S .
Naval Observatory are presented .
Each observation of a system represents a combination of over 2000 short-exposure images .
These observations are averaged into 1013 mean relative positions and range in separation from 0 \farcs 96 to 58 \farcs 05 , with a mean separation of 13 \farcs 50 .
This is the 15 ^ { th } in this series of papers and covers the period 2008 January 3 through 2008 December 21 .