Hi Pete:
One other possiblity: Capture! Think about SL/9. I suspect that for the
Earth/Moon system, this is not a very likely situation. Jupiter is much
larger (with greater gravity) and objects passing by Jupiter will be
going much slower than they would pass by Earth.
Larry
On Wed, December 19, 2007 2:08 pm, Peter A Shugar wrote:
Hello list,
Stated in it's smplest terms, the near miss will preturb the oribital
parametersof the smaller body way more than the much larger earth. Yes
!
However-
The only way that the object will come back to haunt our placid life here
on earth is IF the orbital parameter dealing in TIME is precisely the same
time, (or some whole number multiple), or a fraction of the earth's orbit.
(The earths year and the
objects year or period of rotation must be the same.) Then and only then
will we need to worry but I rather doubt the orbits of any near miss
objects have this particular orbital parameter. One last thought, I do not
have the computer facilites to research this, but a near miss by an object
with an oddball timed orbit MAY have the errors add up or subtract so that
it COULD come back to haunt us, but I doubt we will be around to worry
about it. So
Pete
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