Unblinking, low-flying, white light

Sixty year-old witness, alone in my suburban back yard, saw a light travel from East to West at small aircraft speed and altitude. No red or green positioning lights were present, which is what made the sighting unusual. Steady, white light, no blinking.
Also, as the craft moved away, the white light was exactly the same as when it had been approaching, so it didn’t make sense that I may have been seeing a small plane’s headlight.
There happened to be two satellites ( Space Station?) going far overhead at the same time. The kind that are very high and hard to keep your eye on.