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

From: Bernd Pauli HD <bernd.pauli_at_meteoritecentral.com>
Date: Thu Apr 22 09:50:30 2004
Message-ID: <3CCB14ED.F8826D11_at_lehrer1.rz.uni-karlsruhe.de>

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
Received on Sat 27 Apr 2002 05:15:25 PM PDT