[meteorite-list] How much survives entry?

From: Richard Kowalski <damoclid_at_meteoritecentral.com>
Date: Fri, 4 Dec 2009 12:25:51 -0800 (PST)
Message-ID: <728896.55099.qm_at_web33905.mail.mud.yahoo.com>

That paper is available for free on Google Docs here:

http://tinyurl.com/yl7bvbg

--
Richard Kowalski
http://fullmoonphotography.net
IMCA #1081
--- On Fri, 12/4/09, Alexander Seidel <gsac at gmx.net> wrote:
> From: Alexander Seidel <gsac at gmx.net>
> Subject: Re: [meteorite-list] How much survives entry?
> To: "Sterling K. Webb" <sterling_k_webb at sbcglobal.net>, meteorite-list at meteoritecentral.com, damoclid at yahoo.com
> Date: Friday, December 4, 2009, 6:10 AM
> > 2008TC3 at 2 to 5 meters
> diameter must have
> > weighed between 10 and 150 metric tons. The
> > four kilos recovered would suggest a minimum
> > loss of 99.96%. Of course, there could just as
> > easily been 40 kilos of which only 10% was
> > recovered (99.6% loss). Or 400 kilos of which
> > only 1% was recovered (96% loss).
> > 
> > I think it unlikely there was 400 kilos reaching
> > the ground, but quite possible there were 40 kilos.
> > (Most likely fall weight would be 15 to 25 kilos.)
> > I don't think all of it was recovered. Strewn fields
> a
> > century old still yield up meteorites today. These
> > loss estimates are based on that lowest weight
> > estimate of ten tons... At an original 100 metric
> > tons, the losses would be an order of magnitude
> > higher.
> 
> 
> Regarding 2008TC3, I would like to point at a new and,
> in my opinion, excellent 4-page-update-summary issued 
> by the NATURE magazine:
> 
> "The impact and recovery of asteroid 2008TC3"
> P. Jenniskens et al., NATURE, Vol 458/26 March 2009
> 
> You have to pay a fee for an online-copy of the paper 
> when you enter the NATURE website, but may be Professor 
> Jenniskens or Professor Shaddad from Khartoum would be 
> willing to share sort of a preprint or reprint - don?t 
> know. Sorry, I have no email addresses at hands... 
> 
> Alex
> Berlin/Germany
> 
      

Received on Fri 04 Dec 2009 03:25:51 PM PST