It was discovered on 26 August 1989, by Scottish–Australian astronomer Robert McNaught at the Siding Spring Observatory in New South Wales, Australia.
[12] In May 2005, the first rotational lightcurve was obtained for this asteroid from photometric observations made by French amateur astronomer Laurent Bernasconi.
[7] Between May 2010 and December 2014, American astronomer Brian D. Warner obtained another 3 well-defined lightcurves at the U.S. Palmer Divide Station, Colorado.
[8][9][10] According to the survey carried out by the Japanese Akari satellite, the asteroid measures 5.6 kilometers in diameter and its surface has a high albedo of 0.424,[4] while NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission determined a diameter of 6.2 and 6.3 kilometers with an albedo of 0.347 and 0.381, respectively.
[5][6] The Collaborative Asteroid Lightcurve Link assumes a much lower albedo of 0.18 and calculates a larger diameter of 7.5 kilometers with an absolute magnitude of 13.1.