 Originally, the same data gave a period of hours with an amplitude magnitude ().According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), the Infrared Astronomical Satellite IRAS, and the Japanese Akari satellite, "Imhilde" measures (), () and () kilometers in diameter and its surface has a low albedo of (), () and (), respectively.The "Collaborative Asteroid Lightcurve Link" derives an albedo of 0.0476 and a diameter of 48.39 km based on an absolute magnitude of 10.5.