Long Description of Sighting Report
Took a minute to have a smoke outside, during the Thursday night game when I observed a unidentifiable craft pulsation random colors. It had 2 steady whites lights and what seem to be random colors going completely around in a clockwise pattern turning the white lights a selective color. I was able to catch it in video for 4 minutes, as it proceeded a flight pattern from east to west. Lost site of it as it continued west somewhere over route 53.

This isn't my first sighting, and since I am closed to O'hare, I am familiar to distinguise this was not a jet plane or helicopter. It was at 9:33pm, so I hope others will report it.