This animation shows a motion of a Potentially Hazardous Asteroid (PHA) 1999 KW4. Animation was made using ten 5-sec exposures taken on 2001 May 24 UT with 0.57-m f/5.2 reflector + CCD camera SBIG ST-8 of the Klet' Observatory.
The distance between Earth and this asteroid was 0.039 AU, i.e. 5.8 million kilometers.
The field of view is 8 to 5 arcminutes with north to the top and west to the right.
Observers M. Tichy and M. Kocer.