 In September 2017, a rotational lightcurve of "Swetlana" was obtained from photometric observations by Thomas A. Polakis at the Command Module Observatory in Arizona.Lightcurve analysis gave a well-defined rotation period of hours with a brightness variation of magnitude ().The result supersedes an observations by Italian amateur astronomers Roberto Crippa and Federico Manzini at the Sozzago Astronomical Station from September 2006, which tentatively determined a period of more than 20 hours and an amplitude of magnitude ().