We have witnessed this not just on the date listed, but many many times here in our area. we noticed that activity seems increased at night from 10pm and on. we will see a stationary "star" suddenly take off and start moving.. or a star/satellite type light moving slowly, or fast. they will change speed, hover in place, change direction, flash bright lights, flash lights randomly and some times in odd patterns. the speed at times is remarkable, and they often appear to speed off into space, away from our sight. we have had others come to our home and see them, and several of us have large amounts of experience working with and around aircraft both for the military and civilian parts, and this does not appear to be any known type of aircraft. it does not appear to be a satellite in any way, nor does it appear to be natural occurrences like shooting stars, space junk, ball lightning, etc..