 The result supersedes previous period determinations of hours with an amplitude of magnitude () by Wiesław Z. Wiśniewski from February 1992, and hours with an amplitude of magnitude () by Agnieszka Kryszczyńska in May 1999.In 2011, a modeled lightcurve using data from the Uppsala Asteroid Photometric Catalogue (UAPC) and other sources gave a sidereal period hours, as well as two spin axes at (46.0°, 48.0°) and (231.0°, 60.0°) in ecliptic coordinates (λ, β).According to the surveys carried out by the Infrared Astronomical Satellite IRAS, and the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE), "Tanina" measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively.