[meteorite-list] One of the best of the 2008 TC3 articles

From: Mr EMan <mstreman53_at_meteoritecentral.com>
Date: Thu, 26 Mar 2009 04:10:29 -0700 (PDT)
Message-ID: <821653.81098.qm_at_web55204.mail.re4.yahoo.com>

Hello Larry, I was the one that put "dust bunnies" in the discussion mix whilst discussion space weathering color changes to meteoroids.

I was using it generically and did not limit it to particles which were neutral in charge and gravitationaly emplaced. I was thinking in terms that there are particles that are magnetic/polarized/ionized and are buzzing about the asteroid on or near the surface. I am comfortable that TC3 was not likely a major dust collector.

We are in further agreement that the quality of the spectral measurements have yet to be explained/validated publicly. Given "chondridic pallesite" proclaimations by novice but "credentialed" researchers in the past I'd like to know that more than a few novice eyes were looking over the researchers work.

Someone asked earlier about nanodiamond formation re: Carbonaceous Chondrites. I wanted to point out for listeners that Urelites and some CCs already contain nanodiamonds and impact is not necessary for nanodiamond to be found on the terrain.

Elton


--- On Wed, 3/25/09, lebofsky at lpl.arizona.edu <lebofsky at lpl.arizona.edu> wrote:

> From: lebofsky at lpl.arizona.edu <lebofsky at lpl.arizona.edu>
> Subject: Re: [meteorite-list] One of the best of the 2008 TC3 articles
> To: cynapse at charter.net
> Cc: meteorite-list at meteoritecentral.com
> Date: Wednesday, March 25, 2009, 7:24 PM
> Hi everone:
>
> As someone who has studied asteroids, this is great news.
>
> Only two comments:
>
> 1. I am a little concerned with the classification of the
> "asteroid" as F. The spectral range is not perfect and I wonder what the uncertainty of the spectrum is (might be very poor quality at the longer wavelengths).

> 2. I do not think that 2008 TC 3 was "dusty." It
> was tumbling in space and spinning once ever 50 to 100 seconds. An object this size is not going to have a dusty surface!
>
> my two cents
>
> Larry
Received on Thu 26 Mar 2009 07:10:29 AM PDT