 This makes it a slow rotator.The "Collaborative Asteroid Lightcurve Link" assumes a standard albedo for a stony asteroid of 0.20 and calculates a diameter of 16.71 kilometers based on an absolute magnitude of 11.25.According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, "Herschel" measures between 14.768 and 17.385 kilometers in diameter and its surface has an albedo between 0.1870 and 0.256.