S/2004 S 4
is the designation of an object that astronomers do not know for sure if it exists seen orbiting Saturn within the closer part of the F ring on 21 June, 2004. It was seen while J. N. Spitale was trying to confirm the orbit of another object,  that was seen 5 hours earlier just on the farther edge of the F ring. The announcement was made on September 9, 2004.