According to the space-based survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Menzel measures between 9.6 and 10.2 kilometers in diameter and its surface has an albedo between 0.21 and 0.25.
According to the space-based survey conducted by NASA's Wide-field Infrared Survey Explorer as part of the NEOWISE mission, Menzel measures between 9.6 and 10.2 kilometers in diameter with a surface albedo ranging from 0.21 to 0.25.