[meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT // 2220 CDT 02AUG2014

From: Anne Black <*impactika_at_meteoritecentral.com*> Date: Tue, 5 Aug 2014 22:17:09 -0400 (EDT) Message-ID: <8D17F33A93A389E-924-6FED_at_webmail-d284.sysops.aol.com> · impactika_at_meteoritecentral.com

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On 8/5/14, Anne Black via Meteorite-list
<meteorite-list at meteoritecentral.com> wrote:
> Thank you Al!
> You are the only one who responded.
>
> Yes, of course a lot of meteorites are lost to the oceans, lakes, and
> to remote areas. And it is interesting that the best year for Falls is
> 1933. Of course I certainly would not expect the average rate of Falls
> to change over the years, but with radar, all-sky cameras, computers,
> fast communications, all the work from Dirk Ross, Rob Matson and
> several others, and a lot more people looking up, I would expect the
> percentage of recoveries to go up.
>
> But is it?
> Or is all our modern fancy equipment all for naught?
>
>
> Anne M. Black
> www.IMPACTIKA.com
> IMPACTIKA at aol.com
>
>
> -----Original Message-----
>  From: almitt2--- via Meteorite-list
> <meteorite-list at meteoritecentral.com>
> To: meteorite-list <meteorite-list at meteoritecentral.com>
> Sent: Tue, Aug 5, 2014 7:24 pm
> Subject: Re: [meteorite-list] GA NC TN AL KY Meteor Approx 2320 EDT //
> 2220	CDT 02AUG2014
>
>
> Hi Anne and all,
>
> There are many scientifically calculated fall rates. Most assume
> meteorites that have landed are 100 grams or larger as those are 
deemed
> more findable. A Canadian study estimated some 21,000 falls per year.
> We loose 3/4 in the oceans, leaving some 6,000 to land on dry land.
> Many of those land in remote areas away from the notice of people.
> Higher populations usually result in the notice of more falls. Light
> pollution probably reduces that number some.
>
> Of all the falls, only 0.1% or about 5 to 6 falls per year are 
actually
> collected. The 1933 year was an excellent year for recovery of falls.
> 17 meteorites of the potential fall total were recovered!
>
> According to this Canadian study we are really no better at recovery 
of
> falls than we were in the past. Even though meteorite falls are better
> understood than in the past. It is important to keep this in mind as
> there are many unlocated falls all over the world.
>
>
> Source for some of this information:
> Canadian fireball rates and meteorite falls - declining returns
> by
> Martin Beech
> Campion College, The University of Regina, Regina, Saskatchewan, 
Canada
>
>
> --AL Mitterling
> Mitterling Meteorites
>
>
>
> Quoting Anne Black via Meteorite-list
> <meteorite-list at meteoritecentral.com>:
>
>> I am curious.
>> It is practically everyday that a fireball is spotted somewhere
>> around the globe, but......
>>
>> -  How many of those "fireballs" are real fireballs, not plane,
>> fireworks, lighting,....... etc?
>> -  How many of those real ones burn up in the atmosphere?
>> -  How many make it to the ground and produce meteorites?
>> -  And finally how many of those are ever found soon enough to be
>> called Falls?
>>
>> Is anyone keeping track of those numbers?
>> The percentage meteorites <> fireballs would be interesting.
>>
>>
>> Anne M. Black
>> www.IMPACTIKA.com
>> IMPACTIKA at aol.com
>
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