it was weird and unexplainablea bright red light approached from the nw and came to a stop over lake chelan, reversed direction, performed some complex manuvers [figure eights] stopped again performed a 90 degree turn and headed sw over the lake rising rapidly and disappearing from view in less than 10 seconds [moving very rapidly]. The entire event was soundless from start to finish and lasted approximately 2.5 minutes. At the beginning of the event the object was approx 600 to 1000 ft above ground, after it preformed the manuvers it accelerated and rose rapidly, disappearing sw into the night sky .