 According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), the Japanese Akari satellite, and the Infrared Astronomical Satellite IRAS, "Burnhamia" measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively.The "Collaborative Asteroid Lightcurve Link" derives an albedo of 0.0602 and a diameter of 66.64 kilometers based on an absolute magnitude of 9.55.The WISE team also published an alternative mean-diameter of () with corresponding albedos of ().