 In October 2018, the period was confirmed by Laurent Bernasconi () and by Alfonso Carreño of OBAS () with amplitudes of and , respectively ().According to the survey carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's WISE telescope (WISE), "Lyka" measures (), () and () kilometers in diameter and its surface has an albedo of (), () and (), respectively.The "Collaborative Asteroid Lightcurve Link" derives an albedo of 0.0520 and a diameter of 27.89 km based on an absolute magnitude of 11.6.