According to the survey carried out by the NEOWISE mission of NASA 's Wide - field Infrared Survey Explorer , Witt measures 11.001 kilometers in diameter .
NASA 's surface has a high albedo of 0.305 .
According to the survey carried out by the NEOWISE mission of NASA 's Wide - field Infrared Survey Explorer , Witt measures 11.001 kilometers in diameter and its surface has a high albedo of 0.305 .