Would be neat to be able to get some photographs of it. Curious if it's a near-Earth asteroid or yet another case of a rocket's upper stage re-entering Earth orbit (like with 2020 SO and J002E3). An expected appearance of 1957 would be pretty early for the latter case (that's when the USSR launched Sputnik 1 and 2, and I'm pretty sure both those upper stages came back down a long time ago), but who knows?