UFO Sighting in Monticello, Iowa on September 8th 2015 – 7 red/ orange round objects traveling at a constant speed at treetop level

My fiancee and I were star gazing approx 2332 hrs when to the right of where we were looking 7 large, round objects were traveling at a constant speed with the last object slightly further behind from the other objects. Objects were traveling the height slightly higher than the treetops, and as the objects never reappeared once they flew behind trees. With the exception of the last object, the others had equal distance between them while moving. Objects were not Chinese lanterns as people here claim as these objects were traveling horizontally at a quickened pace, which means they were too fast to be an airplane and too close to be a line of helicopters. Contrary to what anyone claims, we know what we observed and it was unidentified. We were actually in awe of how incredible the incident appeared.