The animation shows a motion of a small (diameter about 20 meters) Aten-type asteroid 2003 UT55 (minor planet arrowed), discovered by the KLENOT Project of the Klet Observatory on 2003 Oct. 26.
Animation was made using four 4-sec exposures taken with 1.06-m KLENOT Telescope + CCD camera Photometrics S300 of the Klet' Observatory.
The field of view is 10 to 7 arcminutes with north to the top and west to the right.
Observers Jana Ticha, Milos Tichy and Michal Kocer.