[meteorite-list] Chelyabinsk: of contrails, bollides and IR

[Don Merchant]

I haven't heard officially if anything of this meteorite was ever recovered. 
Wondering if this meteorite completely evaporated during its explosive entry 
much like the Tunguska event. Divers did check the lake and found nothing 
but were they "scientist divers", Govt. assigned divers, or ametauer divers 
not knowing how and what to look for. For such a destructive and media 
covered event nothing I heard has been officially found but I could be wrong

Sincerely
Don Merchant
Founder-Cosmic Treasures Celestial Wonders
www.ctreasurescwonders.com
IMCA #0960
----- Original Message ----- 
From: "E.P. Grondine" <epgrondine at yahoo.com>
To: <meteorite-list at meteoritecentral.com>
Sent: Saturday, February 16, 2013 10:27 PM
Subject: Re: [meteorite-list] Chelyabinsk: of contrails, bollides and IR


> Hello everyone -
>
> I got to watch the Russian videos before all the pop tunes and colorful 
> Russian expressions were removed. The sanitized compilations are simply 
> not as good. I would have preferred subtitles being added to them instead.
>
> One of the interesting things is that releases of binding forces, the 
> bollides, or "implosions" have previously been estimated to occur around 5 
> kilometers in altitude. If I am viewing the entry contrail in this case 
> correctly, it looks like this bollide went off around 8 kilometers in 
> altitude, indicating a pretty friable small impactor.
>
> Given the slow velocities of the shattered glass pieces, what reached the 
> ground was pretty small. You can be sure that after much delicate dancing, 
> data will come out and analyzed by the specialists.
>
> In the meantime, infra-red spread estimates from the public videos may end 
> up providing a first order estimate as to the magnitude of the bollide.
>
> Another interesting thing is that it has generally been assumed that 
> almost all the momentum was converted into energy in the bollide, but in 
> this case we can see contrails going off after the main bollide event.
>
> Xinhuanet is reporting Russian online sales:
> http://news.xinhuanet.com/english/world/2013-02/16/c_124351175.htm
>
> For you folks out there in the field, its -7, so be nice to people; you 
> might need their help to stay alive. This area has high tech industries, 
> so don't try to pull any stupid bs stunts either. Remember, the reputation 
> of all meteorite hunters depend on everyone else's actions, so please 
> don't p*ss in the soup.
>
> In closing, if this was a CC, and if larger pieces did continue onward, 
> then it has implications for searching for fragments from other CC 
> bollides, such as Tunguska.
>
> Finally, I saw one video where a very young lady was having a small piece 
> of glass removed from her cheek; if she done not get at least a crumb of 
> this one, shame on all of you.
>
> Good hunting, all
> E.P.
>
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