 Lightcurve analysis gave a rotation period of hours with a brightness amplitude of magnitude ().According to the survey carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), "Otila" measures () and () kilometers in diameter and its surface has an albedo of () and (), respectively.The "Collaborative Asteroid Lightcurve Link" assumes a standard albedo for members of the Flora family of 0.24 and calculates a diameter of 10.80 kilometers based on an absolute magnitude of 12.0.