Hi BMD,
Good luck on your hunt for 2024 MK. That's going to be a one night only show, unfortunately. At least the orbit's now well defined and the predicted path shouldn't change very much. CNEOS has reduced the Condition Code to 4 and there's a Doppler radar observation included as well.
As for (415029)2011 UL21, that NEO is so large that it will remain bright for several weeks. It should be <15.5 magnitude until July 17 by my calculations when it will be in Hercules. Parallax is less of an issue for this one as well as it's ~0.05 AU distant and receding.
Phil S.
Good luck on your hunt for 2024 MK. That's going to be a one night only show, unfortunately. At least the orbit's now well defined and the predicted path shouldn't change very much. CNEOS has reduced the Condition Code to 4 and there's a Doppler radar observation included as well.
As for (415029)2011 UL21, that NEO is so large that it will remain bright for several weeks. It should be <15.5 magnitude until July 17 by my calculations when it will be in Hercules. Parallax is less of an issue for this one as well as it's ~0.05 AU distant and receding.
Phil S.