I was looking for the neowise comet from my back porch. i noticed a bright light in the west sky just under the big dipper moving east at the time. the thing the struck me odd was the bright light just vanished. then after a few seconds the object blinked a dimmer light as it moved through the sky. the object was high in the sky it would go dark but unlike a plane their were no fixed lights, it was completely dark. then it would blink a few blinks every 9 to 11 seconds with no certain cadence. at times the bright light would appear and blink fast for a few seconds before it went dark again. it veered to the ne before i lost it behind the trees of my neighborhood. thank you.