[1] The presumably metallic X- or M-type asteroid has an elongated shape and a rotation period of 8.24 hours.

[6] In 2008, two rotational lightcurves of Odessa were obtained from photometric observations at the Hunters Hill and Oakley Southern Sky observatories in Australia.

Lightcurve analysis gave a well-defined rotation period of 8.2426 and 8.244 hours with a brightness amplitude of 0.80 and 0.72 magnitude, respectively, indicative for a non-spherical shape (U=3/3).

[10] According to the survey carried out by the NEOWISE mission of NASA's WISE telescope, Odessa measures 15.91 kilometers in diameter and its surface has an albedo of 0.175,[5][6] while the Collaborative Asteroid Lightcurve Link assumes a carbonaceous standard albedo of 0.057 and consequently calculates a larger diameter of 25.44 kilometers based on an absolute magnitude of 11.7.

[7] This minor planet was named after the Ukrainian black Sea port city of Odesa.