[meteorite-list] How much survives entry?

[Chris Peterson]

There are recoveries following instrumentally recorded fireballs. Initial 
mass is estimated in different ways, depending on the data available. This 
includes seismic and infrasound data as well as intensity profiles, either 
from cameras or spacecraft.

There are several papers which rigorously describe the ablation process on 
theoretical grounds, and these are also consistent with a 95%+ mass loss.

Chris

*****************************************
Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com


----- Original Message ----- 
From: "Meteorites USA" <eric at meteoritesusa.com>
To: "Chris Peterson" <clp at alumni.caltech.edu>
Cc: "meteorite list" <meteorite-list at meteoritecentral.com>
Sent: Thursday, December 03, 2009 9:21 PM
Subject: Re: [meteorite-list] How much survives entry?


> 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?