Astronomers hunting asteroids with radar surpass 1,000th space rock detection

Something that should be pointed out in reports like this I feel. NEOs and NEAs do not orbit the Sun for billions of years, compare to the age of the Earth report, https://forums.space.com/threads/how-old-is-earth.43149/

Here is an example. Fastest orbiting asteroid discovered, https://phys.org/news/2021-08-fastest-orbiting-asteroid.html "Its orbit is probably also unstable over long periods of time, and it will likely eventually either collide with Mercury, Venus or the Sun in a few million years, or be ejected from the inner Solar System by the inner planets' gravitational influence..."

This is well known in studies of NEOs and NEAs. Example, On the existence of near-Earth-object meteoroid complexes producing meteorites, https://ui.adsabs.harvard.edu/abs/2014acm..conf..533T/abstract, July 2014.

My observation. Using Jean Meeus algorithms, an NEO with a = 1.3 au, e = 0.25, perihelion = 0.975 au, aphelion = 1.625 au, and period = 1.4823 years. In 1E+9 years, 6.7462E+08 revolutions around the Sun could be completed but CRE ages and other dynamic modeling show the NEOs do not last that long in the solar system. Space weathering observations show this too, <= 1E+6 years. See NASA ADS Abstract, Mars encounters cause fresh surfaces on some near-Earth asteroids, https://ui.adsabs.harvard.edu/abs/2014Icar..227..112D/abstract, January 2014. "All airless bodies are subject to the space environment, and spectral differences between asteroids and meteorites suggest many asteroids become weathered on very short (<1 Myr) timescales. The spectra of some asteroids, particularly Q-types, indicate surfaces that appear young and fresh, implying they have been recently been exposed."
 

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