 According to the surveys 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, "Swetlana" measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively.The "Collaborative Asteroid Lightcurve Link" derives an albedo of 0.0491 and a diameter of 43.47 kilometers based on an absolute magnitude of 10.7.Alternative measurements published by the WISE team include mean-diameters of () and () with corresponding albedos of () and ().