Smell of ammonia at last few seconds of siteing and maybe 1 - 2 minutes after. it went west-ward for maybe 30 seconds then turned east for another 10 seconds, then back west for another 15 seconds and slowly disappeared.It was a orange-ish ball with slight trail. note: dog noticed something in air and watched east fence and upward during event. i believe myself to be sane and hold a respectable position in medical society. side note: i understand this could be high altitude military aircraft or high altitude fireworks balloons on a really chilly night.