[meteorite-list] Re: Plotting Months and Days - Part 2

From: E.P. Grondine <epgrondine_at_meteoritecentral.com>
Date: Thu Apr 22 09:50:30 2004
Message-ID: <20020429074347.22855.qmail_at_web11603.mail.yahoo.com>

Hi Bernd -

Are these dates you're using corrected calendar dates?

I seem to remember that there were about 3 different
calendars in use in Europe until fairly recent times:
Russian (remembering Tunguska, Greek orthodox basis).
French (jumbled during the revolution), and several
English calendars in earlier times. A part of a book
which Duncan Steel wrote covered this in some depth,
but I have not read it because it is far removed from
my own work.

all the best -
ed


--- Bernd Pauli HD
<bernd.pauli_at_lehrer1.rz.uni-karlsruhe.de> wrote:
> AL wrote:
>
> > I wonder if anyone has tried to plot months and
> days related to
> > meteorite classes to see if any correlation of
> types on certain
> > fall days exists? If streams could be predicted
> then we could have
> > watchers for this material coming down, plotting
> the falls with
> > various observers or camera networks.
>
>
> Hello All!
>
> In part 2 let's look at consecutive fall days for H
> chondrites:
>
> Results of the H chondrite falls on consecutive
> days:
>
> 02 H4 chondrites in Apr (Apr 17+Apr 18)
> 03 H4 chondrites in Jul (Jul 11+Jul 12+ Jul 13)
> 03 H4 chondrites in Aug (Aug 29+Aug 30+Aug 31)
> 05 H4 chondrites in Dec (Dec 14+Dec 15//Dec 26+Dec
> 27+Dec 28)
>
> Although there are 5 H4 chondrite falls in December,
> they are separated
> by a time interval of 11 days. More relevant could
> be the 3 consecutive
> fall days for July, August, and the latter part of
> December.
>
> 02 H5 chondrites in Jul (Jul 12+Jul 13)
> 04 H5 chondrites in Aug (Aug 11(2)+Aug 12(2))
> 04 H5 chondrites in Jan (Jan 27+Jan 28+Jan 29+Jan
> 30)
> 04 H5 chondrites in Mar (Mar 11+Mar 12//Mar 25+Mar
> 26)
> 05 H5 chondrites in Feb (Feb 01+Feb 02+Feb 03//Feb
> 28+Feb 29)
> 07 H5 chondrites in Jun (Jun 14+Jun 15+Jun
> 16(2)//Jun 28+Jun 29+ Jun 30)
> 07 H5 chondrites in Nov (Nov 11(1)+Nov 12(2)//Nov
> 26(2)+Nov 27+Nov 28)
> 09 H5 chondrites in May (May 21+May 22+May 23+May
> 24(2)+May 25+May
> 26+May 27(2))
> 10 H5 chondrites in Sep (Sep 02+Sep 03+Sep04(2)+Sep
> 05(3)//Sep 09+Sep
> 10+Sep 11)
> 13 H5 chondrites in Oct (Oct 09+Oct 10+Oct
> 11(2)+[Oct 14 - Oct 18 ]+[Oct
> 20 - Oct 23]
>
> Most conspicuous here are the 13 H5 chondrites which
> fell between Oct 09
> and Oct 23 in almost direct succession. Equally
> impressive are the 9 H5
> chondrites for May 21-27, then those 7 H5 chondrites
> for Sept 02-05, and
> 4 H5 chondrite falls for Jan 27-30. Another
> interesting result could be
> the time intervals between the two clusters for
> March (about 12 days),
> for June (about 12 days), for November (about 12
> days), and for February
> (about 2 x 12 days).
>
> 02 H6 chondrites in Jan (Jan 15+Jan 16)
> 02 H6 chondrites in Mar (Mar 19+Mar 20)
> 02 H6 chondrites in Aug (Aug 09+Aug 10)
> 02 H6 chondrites in Sep (Sep 16+Sep 17)
> 04 H6 chondrites in Feb (Feb 09+Feb 10//Feb 18+Feb
> 19)
> 04 H6 chondrites in May (May 17+May 18//May 22+May
> 23)
> 04 H6 chondrites in Jun (Jun 11+Jun 12(2)+Jun 13)
> 04 H6 chondrites in Jul (Jul 01+Jul 02// Jul 17+Jul
> 18)
> 04 H6 chondrites in Oct (Oct 05+Oct 06//Oct 30+Oct
> 31)
> 05 H6 chondrites in Apr (Apr 04+Apr 05+Apr 06//Apr
> 29+Apr 30)
>
> The striking fall days for the H6 chondrites are
> those 4 falls
> in June and the 3 successive fall days in early
> April.
>
> Again, please note: This is a statistical overview -
> no more and
> no less and we must be very careful with rash
> conclusions!
>
>
> Best wishes from someone who is still struggling to
> cope with the
> terrible fate that 14 German teacher colleagues
> suffered in that
> shooting in Erfurt yesterday but like Michael
> Cottingham I think
> that meteorites and contributions to our list help
> me come to grips
> with such a situation. Brooding doesn't help and
> life must go on!
>
> Bernd
>
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Received on Mon 29 Apr 2002 03:43:47 AM PDT