[meteorite-list] Lunar Meteorite Quiz - How big an object with velocity to get a new Lunar Meteorite to Earth?

[drtanuki]

Dear Dr. Bunch,  Thank you for refining the question and clarification. Sorry I overlooked your address on the "to address list".  Have a safe trip.  Dirk Ross...Tokyo
________________________________
From: Ted Bunch <tbear1 at cableone.net>
To: drtanuki <drtanuki at yahoo.com> 
Sent: Monday, March 3, 2014 3:41 AM
Subject: Re: [meteorite-list] Lunar Meteorite Quiz - How big an object with velocity to get a new Lunar Meteorite to Earth?


I have to go on a trip in a few minutes, but an additional consideration 
to  mass, ejection V & angle, etc. is the consideration of orbital 
mechanics of an ejected mass as to whether it is reaches a stable orbit, 
one that ultimately decays into earth or one that may escape the 
gravitational effects of the Earth-moon system.

Look up Lagrangian points,

Ted


On 3/2/14 3:50 AM, drtanuki wrote:
> Dear List,
>    A big thank you in advance! This should cover most of the experts in the field...
> Since there are many on this list with advanced degrees and also novices I pose this question.- How large of diameter, an impact object, with what velocity would it take to get a new Lunar Meteorite to Earth and what is the fastest or average transit time? Thanks to those that are entertained!  Invited are some of the world"s top experts for an answer or re-framing of the question. Indulge. Dirk Ross...Tokyo
>
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