Fast Mover 2021 XM3

[bigmasterdrago]

That's big piece of rock!! Looks like good geometry over the 5 hours b4 beginning of astronomical twilight. Up 65° in SSW at 5:00CST for me in SE Texas. Out of reach in my 13 and at the edge of the 24 visually. I have MPC and JPL giving the magnitude as 15.6 during the 5 hours: midnight till 5am. Beginning low in the east (midnight) and ending high in the SW after Astronomical Twilight. Both MPC & JPL have same position. Speed mostly unchanged at ~59"/min. For me, minimum distance shows 2,631,450Km @06:00:11CST.

Thanks for the alert.