2021-10-07, 03:06 AM
(This post was last modified: 2021-10-07, 03:14 AM by bigmasterdrago.)
(2021-10-06, 06:48 PM)razvan Wrote: I subscribed to ESA's NEO Coordination Centre | Planetary Defence Office (this must be the coolest employer name to put on LinkedIn for those people) and there is an interesting note in their October issue: "of the almost 27 000 discovered NEOs, about 25% have an observed arc of less than a week, and 50% have been seen for less than a month. Many of these objects will likely be already unrecoverable at their next favourable apparition, and will have to be rediscovered in the future."
I tried to search for that office and mostly found only this: https://dart.jhuapl.edu/
(2021-10-06, 12:32 AM)razvan Wrote: Obligatory Expanse joke: it must have been covered in Martian stealth tech, like the others thrown towards EarthWhen that rock screamed by me on On Oct 1 16:27CDT (daylight), it came whipping by my yard, moving 1.5°/min at a distance of 38,841Km!! Yikes! Talk about ruffle the short hairs. I always use topo centric distances. Even when using Horizons.
JPL says the closest approach was at 0.00028 AU, that's 41,887km, quite close. And that's Earth center to asteroid center, that's 35,516km from the Earth surface!
