Radar and optical observations and physical modeling of triple near-Earth Asteroid (136617) 1994 CC

► Radar observations reveal that NEA 1994 CC is the second-to-date confirmed triple system. ► The primary looks similar to 1999 KW4 Alpha with sloped hemispheres and an equatorial ridge. ► The inner satellite appears to be in spin-orbit lock, while the outer satellite is rotating asynchronously. ► At least 25% of the binaries/triples with D > 200 m have a satellite that is asynchronous.