[2] Pakhmutova orbits the Sun in the outer main-belt at a distance of 2.7–3.4 AU once every 5 years and 5 months (1,984 days).

[4][5][6][7][8] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0574 and a diameter of 33.41 kilometers with an absolute magnitude of 11.1.

[3] In February 2006, a rotational lightcurve[a] was obtained by American astronomer Brian Warner at his Palmer Divide Observatory (716) in Colorado.

[9] Photometric observations at the Palomar Transient Factory in February 2012, gave a period of 17.5226 hours and an amplitude of 0.49 magnitude (U=2).

[11] In 2011, a modeled lightcurve using data from the Uppsala Asteroid Photometric Catalogue (UAPC) and other sources gave a period 17.5157 hours, as well as a spin axis of (22.0°, –76.0°; 167.0°, –40.0°) in ecliptic coordinates (λ, β) (U=2).