 In April 2015, a rotational lightcurve of "Westphalia" was obtained from photometric observations by Eduardo Manuel Álvarez at the Los Algarrobos Observatory in Uruguay.Lightcurve analysis gave a rotation period of hours with a brightness amplitude of magnitude, indicative of a spherical, non-elongated shape ().This was the first time a period could be determined for this asteroid, and, as the observer noted, there were only 18 tree-digit asteroids left for which no such measurement had yet been made.