[meteorite-list] How much survives entry?

[Meteorites USA]

Hi list,

How is this calculated and how do we know the 90% to 95% loss 
calculation is accurate without knowing the mass of the asteroid before 
entry and after recovery of every piece that lands on the surface of our 
planet?

Has there ever been such a case?

Regards,
Eric Wichman
Meteorites USA


Chris Peterson wrote:
> I think that you can usually figure that 95-99% of the mass of parent 
> meteoroid is lost. That seems pretty consistent with the estimated 
> mass of observed fireballs compared with the mass of recovered 
> meteorites.
>
> Obviously, what is typical is pretty loosely defined; I don't doubt 
> that there are exceptions to the rule.
>
> Chris
>
> *****************************************
> Chris L Peterson
> Cloudbait Observatory
> http://www.cloudbait.com
>
>
> ----- Original Message ----- From: "Richard Kowalski" 
> <damoclid at yahoo.com>
> To: "meteorite list" <meteorite-list at meteoritecentral.com>
> Sent: Thursday, December 03, 2009 5:45 PM
> Subject: [meteorite-list] How much survives entry?
>
>
>> Does anyone have a rough estimate on how much material, say ordinary 
>> chondrite, is lost during entry? 80% converted to light, heat and 
>> dust? 90%? 99.9%?
>
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