I saw a flash of light in the night sky that blinked on for approximately 1 sec and off for 3 it had a vary high Altitude and moved

I was standing behind the Fire Station on Brunswick Rd and was looking up in the sky and saw a bright light that was flashing slowly (approximately 1 sec on and 3-5 sec off) the light was holding positions so I thought it was a satellite or high altitude plane. It was vary high and the light was not like the white strobe on the underside of a plane. The the light started moving towards the east and would pause then make a vary short fast movement to the south. I looked for con trails coming off it and saw none. It just would make a fast movement then hold still then move again. The light had to much altitude to be a helicopter and no noise was being made. I observed the light and compared it to the plane that was flying past the station going to MEM (probably landing on RW18L or 18C) and the plane beckon was noticeably faster between flashes and much closer and I could hear the engine of the plane. After about 7-10 minutes the light was gone, I then searched the sky for it to appear again and it did not. I did not have my phone so I could not take a picture of it ( not that it would do any good because of the distance of the light)