  The results of 4,747 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 two thousand
short-exposure images. These observations are averaged into 2,667 mean relative
positions and range in separation from 0.328" to 95.9", with a median
separation of 8.673". Four orbits are improved. This is the 22nd in this series
of papers and covers the period 4 January 2016 through 29 December 2016.
