Aug 28th 2017 right past midnight in round lake illinois i heard the same loud jet loud noise. 2 weeks earlier i watched the air and water show from my friends balcony and witnessed blue angels and latest jet fighters and all of that. This noise was way way louder. As an actaul nasa vouger blasted off right over my roof. You could hear the intensity of the burn and it was something supermassive. Like I mentioned i witnessed jet fighters just weeks ago up close and that sound did not stand even close to the sound i witnessed.