 According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, "Polonia" measures between 35.76 and 47.058 kilometers in diameter and its surface has an albedo between 0.0763 and 0.1319.The "Collaborative Asteroid Lightcurve Link" adopts the results obtained by IRAS, that is, an albedo of 0.1319 and a diameter of 35.76 kilometers based on an absolute magnitude of 10.05.This minor planet was named "Polonia", the Latin name for the European country of Poland.