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Re: (meteorobs) Re: Meteorite over Greenland 091297- English. (fwd)



Tjonge, jonge, jonge.....
Het is toch wat....
Ook dit bericht gaat tig keer de wereld rond....
Mijn e-mail box loopt zo nog eens over!


At 13:49 20-12-97 +0100, you wrote:
>
>
>---------- Doorgestuurd bericht ----------
>Date: Sat, 20 Dec 1997 13:16:08 +0100 (CET)
>From: Marco Langbroek <marcolan@stad.dsldot nl>
>To: Keld Rasmussen <keld-rasmussen@email.dk>
>Cc: delpsurf@cistrondot nl, Casper ter Kuile <pegasoft@cc.ruudot nl>,
>    Peter Jenniskens <peter@max.arc.nasadot gov>, kuiper@knmidot nl
>Subject: Re: Meteorite over Greenland 091297- English.
>
>Op Fri, 19 Dec 1997, Keld Rasmussen schreef:
>
>Hello Keld,
>
>Below descriptions of sound and aerthquake-like phenomena are consistent 
>with a sonic boom, looking at the mentioned time-lapse of 3-4 minutes. A 
>real earthquake through impact would have arrived much quicker after the 
>fireball (waves in solids move at about 3-6 km/s, while shockwaves in air 
>(sonic booms) move at 300 m/s, much slower). Sonic booms are regular 
>phenomena with bright fireballs. They originate beause a meteoroid 
>penetrating into the lower 40 km of atmosphere creates a shockwave 
>because of its supersonic speeds at that moment, combined with the object 
>itself slowing down.
>The mentioning of more than one fireball is interersting. Perhaps he did 
>see only the end of the trajectory, and the account relates to 
>fragmentation at the end. That can aid survival of fragments.
>
>As far as I can judge now, this must have been a fireball near -15, 
>perhaps with sonic boom and terminal fragmentation. This could mean that 
>some meteorite fragments can have survived. Yet, in honesty, it is 
>becoming clear now I think that this is NOT a very large impact, but 
>rather a possible meteorite impact of average size.
>
>Marco Langbroek (DMS)
>
>
>
>> In the last few days we have spent most of our time collecting new
>> eyewitness, and dokumentation.
>> Our latest investigation have shown soundphenomen and small earthcrake.
>> Read this eyewitnes rapports
>> 
>> 
>> ********
>> 
>> Kommunefogedafløser Kristen Johnsen, Fiskenæsset, (South of Nuuk), was on
>> the 091297 0510 on the toilet, when he felt an earthcracke. Duration about
>> 1 sec. In the same time he heard an eksplosion. His vife and grandchild
>> wake up, and the child bagan to cry. 
>> KJ thought that it vas a gseksplotion.
>> 
>> ********
>> 
>> Jæcob Møller, fiskenæsset, (South of Nuuk), was in his bed, from where
>> there are wiev to souht through a window. He saw some (more than 1)
>> fireball passing through his sight of view. He was shure that there was
>> more than 1 ball.
>> After apx 3-4 min he felt an earthchrake and in the same time an
>> eksplosion.
>> 
>> ********
>> 
>> Isak Olsen, Akkunnaaq, (ca 500 km nord for Nuuk)stod at the 091297 051
>> X in open air, ant looking at north. He saw at light phenomen in duration 1
>> sec. He did not see any fireball.
>> 
>> ********
>> 
>> 
>> I hope my insufficient english is better than danish you may not
>> understand.
>> 
>
>It is sufficient enough. Thanks for communicating the translated accounts! 
>
>> Source and interview by:
>> 
>> Keld Rasmussen, Københavns Astronomiske Forening.
>> keld-rasmussen@email.dk
>> tlf:     45 888853 (incl. fax)
>> mobil 40 361502
>> 
>> Look at the home page of Københavns Astronomiske Forening.
>> http://www2.dk-online.dk/users/hpersson/kaf.htm
>> 
>> 
>> 
>
>
Leonids-'98? A once (twice?) in your lifetime appearance! You can't afford
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Casper ter Kuile, Akker 145, NL-3732 XD, De Bilt, The Netherlands
Phone: +31-30-2203170;  Fax: +31-30-2202695;  GSM: +31-6-54723974
E-mail1: pegasoft@cc.ruudot nl;  E-mail2: casper.ter.kuile@rivmdot nl; UIN: 3462901
WWW: http://www.pidot net/~terkuile/meteors/dms.htm

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