I was walking my dog and something caught my eye and i looked up and i saw a bright orb like light pulsating. it was moving west to east approx 200kmh easy . it was way too big for a satellite which i see every night. this was much lower and pulsar like...Bright white light no other colour. it did a quick zigzag right to left ...Very fast and stopped for maybe 7-9 seconds and kept going and before it disappeared over the mountain it zigzag one more time....When it went right to left it covered over a hundred yards in a fraction of a second and returned to its original path . no sound and didn't come back. been there over 9 years and first time i seen something here.