the Delphos glowing ring — been trying to debunk it for a week and there's ONE thing I can't get past

Ok so the Delphos ring (Kansas, Nov 1971) gets passed around every few months as 'best trace case ever' and I went in fully expecting to tear it apart. 16yo kid Ronnie Johnson on the family farm, sees a mushroom-shaped lit-up thing hovering low, it shoots off, and there's an 8ft glowing white ring l……