 The study also determined two spin axes of (217.0°, 36.0°) and (34.0°, 41.0°) in ecliptic coordinates (λ, β).In 2018, however, an international photometric survey, using archived photometric data from the Geneva Observatory as well from dedicated observations, modeled a far longer period of hours with an amplitude of magnitude ().The survey uses combines convex lightcurve inversion with a non-convex algorithm (SAGE) to derive their periods.