 Both results supersede a tentative period determination by Laurent Bernasconi from September 2001 ().A modeled lightcurve using photometric data from the "Lowell Photometric Database" and from the Wide-field Infrared Survey Explorer (WISE) was published in 2018.It gave a divergent sidereal period of hours and includes two spin axes at (172.0°, 20.0°) and (352.0°, 42.0°) in ecliptic coordinates (λ, β).