What exactly do you refer to as sputnik? I always thought it was the big white and green buoy that is located between the Harbor light and the mouth of the Maumee River. Someone recently told me it was closer to Monroe north of the Harbor Light, and is also refered to as the radar buoy or McDonalds. This kind of makes sense since you say you are fishing in 29 fow and the buoy i'm thinking of is nowhere near that deep.