Last evening myself and three other co-workers had a bon-fire under a nearly clear sky full of stars at hwy 22 and old man river in southern alberta. one of us noticed an extremely bright light slowly moving east about 2km above us in elevation. we all observed this stop in mid air then quickly change direction from side to side after which it again stopped on it's original course then quickly speed away. it's directional corrections were amazingly quick, the lights brightness was constant and did not change nor did we hear anything from it. having watched satellites and shooting stars in the past we all agreed this was nothing we had seen before. this was way to low and brighter than anything else in the night shy.