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People are paid to calculate this stuff?


Wilbur

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55 minutes ago, Wilbur said:

In about a million years, there is a 6% chance the recently launched Tesla, will return to earth..

They haven't calculated the effects of of a million years radiation will have on the carbon bits.  Clearly, they need another grant to ensure this important research is completed. 

Apparently, Canadians have an obsession with Musk!

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The random walk of cars and their collision probabilities with planets

Hanno Rein, Daniel Tamayo, David Vokrouhlicky

On February 6th, 2018 SpaceX launched a Tesla Roadster on a Mars crossing orbit. We perform N-body simulations to determine the fate of the object over the next several million years, under the relevant perturbations acting on the orbit. The orbital evolution is initially dominated by close encounters with the Earth. The first close encounter with the Earth will occur in 2091. The repeated encounters lead to a random walk that eventually causes close encounters with other terrestrial planets and the Sun. Long-term integrations become highly sensitive to the initial conditions after several such close encounters. By running a large ensemble of simulations with slightly perturbed initial conditions, we estimate the probability of a collision with Earth and Venus over the next one million years to be 6% and 2.5%, respectively. We estimate the dynamical lifetime of the Tesla to be a few tens of millions of years.

ACKNOWLEDGMENTS:
This research has been supported by the NSERC Discovery Grant RGPIN-2014-04553.

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Tom

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