This doesn't fit the properties of the discussion exactly, but last night we had an excellent overhead at dusk pass of the International Space Station which continued visually right down to the distant treeline on the south eastern horizon. Looking back at my tracking program for that pass, at that moment it was 2,150 km distant at an altitude of 434 km with a calculated elevation of about 2.5 degrees. Part of the fascination with this object is my involvement with the on-board amateur radio experiments, the rest is just the fascination of it being there, just as it was in October 1957 like watching the very first LEO object (Sputnik 1 launch vehicle) cross the sky. My grandmother was both skeptical and fearful - "Whatever next!" she said. None of us could have predicted what this would lead to in the years since that time and right up to our present era.