Photometric observations of this asteroid at Palmer Divide Observatory in Colorado Springs, Colorado during 2007 gave a light curve with a period of 6.139 ± 0.002 hours and a brightness variation of 0.08 ± 0.01 in magnitude. This confirms period measurements of about 6.2 hours reported in 1987 and 2001.
This is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.
^Yeomans, Donald K., "639 Latona", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), retrieved 2013-03-30.
^Warner, Brian D. (June 2008), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory - June - October 2007", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers35 (2): 56–60, Bibcode:2008MPBu...35...56W.