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 <[email protected]> wrote: > From: Alexander Seidel <[email protected]> > Subject: Re: [meteorite-list] How much survives entry? > To: "Sterling K. Webb" <[email protected]>, > [email protected], [email protected] > 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 > ______________________________________________ http://www.meteoritecentral.com Meteorite-list mailing list [email protected] http://six.pairlist.net/mailman/listinfo/meteorite-list
