[2] Kosmodemyanskaya orbits the Sun in the inner main-belt at a distance of 2.1–2.9 AU once every 3 years and 10 months (1,402 days).
[3] The first rotational lightcurve was obtained by American astronomer Richard P. Binzel during a photometric survey of small main-belt asteroids in the 1980s.
[6] In November 2004, another lightcurve of Kosmodemyanskaya was obtained by French amateur astronomer Laurent Bernasconi.
[7] According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Kosmodemyanskaya measures 4.843 kilometers in diameter and its surface has an exceptionally high albedo of 0.522,[4][5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 8.93 kilometers with an absolute magnitude of 12.61.
[2] The official naming citation was published by the Minor Planet Center on 1 April 1980 (M.P.C.