Originally posted by @vivify
If the asteroid collided with earth, how much of it would disintegrate upon entry to earth's atmosphere? Do scientists have a way of calculating that?
They can calculate such things but it wouldn't be like don't worry be happy. If a large asteroid slammed into Earth and mostly burned up in the atmosphere, there would be world wide clouds of dust that would effect weather, causing a drop in temperatures world wide to say nothing of the crater and ejecta coming from the asteroid itself. Remember, the Chixulub asteroid was only a few miles across.
So during the 2019 flyby they can make better predictions as to how close it comes in 2079.
Even if it hits, it is relatively small compared to the extinction even asteroids, at 100 feet, 30 meters or so across. Most likely burn up in atmosphere like the one that grazed Russia recently.
Of course it all depends on the angle of the dangle🙂