The asteroid was discovered on 23 August 1997, by Slovak astronomers Adrián Galád and Alexander Pravda at Modra Observatory, Slovakia.
[7] A rotational lightcurve of Kubáček was obtained from photometric observations made by the discovering astronomer Adrián Galád at Modra Observatory in April 2008.
[5] According to the survey carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Kubáček measures 4.8 kilometers in diameter and its surface has an albedo of 0.21,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 4.7 kilometers.
[3] This minor planet was named in honor of astronomer Dalibor Kubáček (born 1957), who explored the coma of comets at the Slovak Academy of Sciences in Bratislava.
He readily instructed the peculiar methods of image processing to students and friends, as well as to the discoverers of this minor planet.