2021-08-01, 04:27 PM
So, so often we see this discovery and string of observation AFTER the closest approach. And even if we get a bit of warning (day or two), the arc is so short that getting a good set of elements is tricky. And with the gravitational perturbations of both the Earth & Moon, tracking and locating get real tricky for software that will need a close set of osculating elements. But I'm sure liking the chart output in ST4. It's fun working the problems out and using all the tools we have at our disposal. It becomes time critical and sharing an ephemeris is impossible due to the parallax from different locations. And then most are at our visual limit or beyond. Still fun!