Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-31 Thread MexicoDoug
Dr. Grossman wrote:

The odds may not be as astronomical as you
think.  I estimate that the probability that 3
out of 6 random people were born in the same month is just over 10%.

jeff

Jeff, That's uncommonly good intuition.  Reminds me of this discussion:

http://www.mail-archive.com/meteorite-list@meteoritecentral.com/msg37371.htm
l

ODDS of exactly three of six being in one month, and the other 3 in two or
more other months not July:
=12*COMBIN(6,3)*PERMUT(11,3)/12^6
= 7.96% (with 90% confidence for me that it's right...)

But if we look at two weeks' interval where the falls fit (12 or 13 days
actually), instead of one month, it becomes,
= 2.32%, though that's not entirely fair because we are manipulating the
beginning and ending date a little to suit us so it has higher likelihood of
spanning two intervals than picking the month.
So I think the practical answer can be argued somewhere in between the two.
Then again maybe not.  These number pairings and triplettings are headaches.
So mathematical scribblings are not warranted :-)

5% may be low probability, but, even Eva Longoria has to have a boyfriend.
http://en.wikipedia.org/wiki/Tony_Parker
Best wishes, Doug

P.D.  I used to think my birthday was more special because more Full Moons
occurred on it than any other day of the year.  Unfortunately for me, it was
because I started measuring from my date of birth, a full Moon, and extended
it to the present.  So once I went a Full Moon earlier and redid the
calculation.  And no longer was my birthday #1...So much for picking
intervals of convenience...
P.D.D.  I used to believe in doing statistics on fall dates (bugging Marco,
etc.) until I realized - if there is no meteor shower accompanying the falls
... why on Earth would only big rocks be there and falling.  Any collision
is bound to make may many more particles of sand, especially for such a
friable meteorite that has been described - and as Mike's narrative and
photo illustrate the pulverization just where it smashed against a little
cement at a snail's pace.  80 grams of powder makes many, many, little
meteors.  So until we have the July 12 radiant...I'm personally not a
believer.  (Is 5 km/sec [=11,200 mph] the average assumed collision speed in
space)

Alpha Cygnids Jul11-Jul30 peak=Jul 18 ZHR=2
South Delta Aquarids Jul12-Aug19 peak=Jul 28 ZHR=20


At 02:41 PM 8/30/2006, Michael Farmer wrote:
That is amazing though, how with only 6 witnessed falls in the last 200
years of CO3 meteorites, 50% of them are in July! Those are some
astronomical odds!
Mike Farmer

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff
Grossman
Sent: Wednesday, August 30, 2006 11:35 AM
To: meteorite-list@meteoritecentral.com
Subject: Re: [meteorite-list] Preliminary MOSS meteorite classification

Yes, I noticed that too.  Could just be a
coincidence, however.  The dates are almost 2 weeks apart.

jeff
At 02:21 PM 8/30/2006, Bjorn Sorheim wrote:


 Michael Farmer wrote:
  Hello everyone, well here is the preliminary
  classification data on the MOSS Norway meteorite fall.
  Dr Jeff Grossman is doing the classification and he
  sent me the following information a little while ago.
 .
 
  Avg Fa PMD
  Kainsaz (CO3.2) 11.8 70
  Felix (CO3.3) 18.4 70
  Ornans (CO3.4) 19.0 68
  Lance (CO3.5) 21.2 63
  Warrenton (CO3.7) 33.9 21
 
  Moss 19.9 65
 
  This puts Moss between Ornans and Lance,
 
 Yes, you are so right Dr Grossman! Just look here:
 
 Ornans , Fall 11th July, 19:15h 1868
 Moss, Fall 14th July, 10:15h 2006
 Lance,Fall 23rd July, 17:20h 1872
 
  From The Catalogue (2000).
 
 Makes you think, don't it! Seems to be a connection here.
 Any info on the trajectory at those falls?
 
  although I
  don't think that
  difference is significant.
 
 Regards,
 Bjørn Sørheim
 http://home.online.no/~bsoerhei/astro/meteor/060714/moss.htmlFresh
 'Moss'...
 
 __
 Meteorite-list mailing list
 Meteorite-list@meteoritecentral.com
 http://six.pairlist.net/mailman/listinfo/meteorite-list

Dr. Jeffrey N. Grossman   phone: (703) 648-6184
US Geological Survey  fax:   (703) 648-6383
954 National Center
Reston, VA 20192, USA


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list

Dr. Jeffrey N. Grossman   phone: (703) 648-6184
US Geological Survey  fax:   (703) 648-6383
954 National Center
Reston, VA 20192, USA


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-31 Thread E.P. Grondine
Hi all - 

A little blue sky here - I hope this makes sense - 

Because of the difference in fragmentation of
asteroids and comets, any regular annual pattern of C
falls would argue for a cometary source.  But even a
comet debris stream in an ellipse will have bulges in
it (years) when C meteorite recovery (and possibly C
meteors) should be best. (Is anoyne doing spectral
work on meteors?)

Meteorites with asteroid source have been assumed to
be random.  But there may be two source debris streams
which are non-random: First, debris from the
disintegration of an asteroid which ended up on an
Earth insecting orbit and has either impacted or will
impact.  Second, debris thrown out and sent Earthward
by impacts between asteroids.

But to even start analysis you'd need a substantial
number of observed falls - how many recovered falls
are there entire?

good hunting - 
Ed

--- MexicoDoug [EMAIL PROTECTED] wrote:

 Dr. Grossman wrote:
 
 The odds may not be as astronomical as you
 think.  I estimate that the probability that 3
 out of 6 random people were born in the same month
 is just over 10%.
 
 jeff
 
 Jeff, That's uncommonly good intuition.  Reminds me
 of this discussion:
 

http://www.mail-archive.com/meteorite-list@meteoritecentral.com/msg37371.htm
 l
 
 ODDS of exactly three of six being in one month, and
 the other 3 in two or
 more other months not July:
 =12*COMBIN(6,3)*PERMUT(11,3)/12^6
 = 7.96% (with 90% confidence for me that it's
 right...)
 
 But if we look at two weeks' interval where the
 falls fit (12 or 13 days
 actually), instead of one month, it becomes,
 = 2.32%, though that's not entirely fair because we
 are manipulating the
 beginning and ending date a little to suit us so it
 has higher likelihood of
 spanning two intervals than picking the month.
 So I think the practical answer can be argued
 somewhere in between the two.
 Then again maybe not.  These number pairings and
 triplettings are headaches.
 So mathematical scribblings are not warranted :-)
 
 5% may be low probability, but, even Eva Longoria
 has to have a boyfriend.
 http://en.wikipedia.org/wiki/Tony_Parker
 Best wishes, Doug
 
 P.D.  I used to think my birthday was more special
 because more Full Moons
 occurred on it than any other day of the year. 
 Unfortunately for me, it was
 because I started measuring from my date of birth, a
 full Moon, and extended
 it to the present.  So once I went a Full Moon
 earlier and redid the
 calculation.  And no longer was my birthday #1...So
 much for picking
 intervals of convenience...
 P.D.D.  I used to believe in doing statistics on
 fall dates (bugging Marco,
 etc.) until I realized - if there is no meteor
 shower accompanying the falls
 ... why on Earth would only big rocks be there and
 falling.  Any collision
 is bound to make may many more particles of sand,
 especially for such a
 friable meteorite that has been described - and as
 Mike's narrative and
 photo illustrate the pulverization just where it
 smashed against a little
 cement at a snail's pace.  80 grams of powder makes
 many, many, little
 meteors.  So until we have the July 12 radiant...I'm
 personally not a
 believer.  (Is 5 km/sec [=11,200 mph] the average
 assumed collision speed in
 space)
 
 Alpha Cygnids Jul11-Jul30 peak=Jul 18 ZHR=2
 South Delta Aquarids Jul12-Aug19 peak=Jul 28 ZHR=20
 
 
 At 02:41 PM 8/30/2006, Michael Farmer wrote:
 That is amazing though, how with only 6 witnessed
 falls in the last 200
 years of CO3 meteorites, 50% of them are in July!
 Those are some
 astronomical odds!
 Mike Farmer
 
 -Original Message-
 From: [EMAIL PROTECTED]

[mailto:[EMAIL PROTECTED]
 On Behalf Of Jeff
 Grossman
 Sent: Wednesday, August 30, 2006 11:35 AM
 To: meteorite-list@meteoritecentral.com
 Subject: Re: [meteorite-list] Preliminary MOSS
 meteorite classification
 
 Yes, I noticed that too.  Could just be a
 coincidence, however.  The dates are almost 2 weeks
 apart.
 
 jeff
 At 02:21 PM 8/30/2006, Bjorn Sorheim wrote:
 
 
  Michael Farmer wrote:
   Hello everyone, well here is the preliminary
   classification data on the MOSS Norway
 meteorite fall.
   Dr Jeff Grossman is doing the classification
 and he
   sent me the following information a little
 while ago.
  .
  
   Avg Fa PMD
   Kainsaz (CO3.2) 11.8 70
   Felix (CO3.3) 18.4 70
   Ornans (CO3.4) 19.0 68
   Lance (CO3.5) 21.2 63
   Warrenton (CO3.7) 33.9 21
  
   Moss 19.9 65
  
   This puts Moss between Ornans and Lance,
  
  Yes, you are so right Dr Grossman! Just look
 here:
  
  Ornans , Fall 11th July, 19:15h 1868
  Moss, Fall 14th July, 10:15h 2006
  Lance,Fall 23rd July, 17:20h 1872
  
   From The Catalogue (2000).
  
  Makes you think, don't it! Seems to be a
 connection here.
  Any info on the trajectory at those falls?
  
   although I
   don't think that
   difference is significant.
  
  Regards,
  Bjørn Sørheim
 

http://home.online.no/~bsoerhei/astro/meteor/060714/moss.htmlFresh
  'Moss

RE: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-31 Thread Michael Farmer
That is amazing though, how with only 6 witnessed falls in the last 200
years of CO3 meteorites, 50% of them are in July! Those are some
astronomical odds!
Mike Farmer

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff
Grossman
Sent: Wednesday, August 30, 2006 11:35 AM
To: meteorite-list@meteoritecentral.com
Subject: Re: [meteorite-list] Preliminary MOSS meteorite classification

Yes, I noticed that too.  Could just be a 
coincidence, however.  The dates are almost 2 weeks apart.

jeff
At 02:21 PM 8/30/2006, Bjorn Sorheim wrote:


Michael Farmer wrote:
 Hello everyone, well here is the preliminary
 classification data on the MOSS Norway meteorite fall.
 Dr Jeff Grossman is doing the classification and he
 sent me the following information a little while ago.
.

 Avg Fa PMD
 Kainsaz (CO3.2) 11.8 70
 Felix (CO3.3) 18.4 70
 Ornans (CO3.4) 19.0 68
 Lance (CO3.5) 21.2 63
 Warrenton (CO3.7) 33.9 21

 Moss 19.9 65

 This puts Moss between Ornans and Lance,

Yes, you are so right Dr Grossman! Just look here:

Ornans , Fall 11th July, 19:15h 1868
Moss, Fall 14th July, 10:15h 2006
Lance,Fall 23rd July, 17:20h 1872

 From The Catalogue (2000).

Makes you think, don't it! Seems to be a connection here.
Any info on the trajectory at those falls?

 although I
 don't think that
 difference is significant.

Regards,
Bjørn Sørheim
http://home.online.no/~bsoerhei/astro/meteor/060714/moss.htmlFresh 
'Moss'...

__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list

Dr. Jeffrey N. Grossman   phone: (703) 648-6184
US Geological Survey  fax:   (703) 648-6383
954 National Center
Reston, VA 20192, USA


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-30 Thread Darren Garrison
On Wed, 30 Aug 2006 10:02:29 -0700 (PDT), you wrote:

years classified so quickly. Specimens have been
distributed to scientists all over the country for
analysis so I expect many papers on this fall to be
written in the near future.

Thanks for the update, and thanks for getting those samples distributed around
the country-- which apparently wouldn't have happened if some of the Norweigan
reasearchers had their way.
__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-30 Thread MexicoDoug
Congratulations to our two listmenbers, Mike Farmer for his difficult part
and now especially to Dr. Grossman for his academic toils in a teamwork
combination that earns my respect.  Mike, thanks for making the provisional
info available sooner rather than later for everyone concerned, too.
Best wishes,
Doug

I want to thank Dr. Grossman for working so hard to
get the first carbonaceous chondrite fall in many
years classified so quickly. Specimens have been
distributed to scientists all over the country for
analysis so I expect many papers on this fall to be
written in the near future.


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-30 Thread Jeff Grossman
Yes, I noticed that too.  Could just be a 
coincidence, however.  The dates are almost 2 weeks apart.


jeff
At 02:21 PM 8/30/2006, Bjorn Sorheim wrote:



Michael Farmer wrote:
Hello everyone, well here is the preliminary
classification data on the MOSS Norway meteorite fall.
Dr Jeff Grossman is doing the classification and he
sent me the following information a little while ago.
.

Avg Fa PMD
Kainsaz (CO3.2) 11.8 70
Felix (CO3.3) 18.4 70
Ornans (CO3.4) 19.0 68
Lance (CO3.5) 21.2 63
Warrenton (CO3.7) 33.9 21

Moss 19.9 65

This puts Moss between Ornans and Lance,

Yes, you are so right Dr Grossman! Just look here:

Ornans , Fall 11th July, 19:15h 1868
Moss, Fall 14th July, 10:15h 2006
Lance,Fall 23rd July, 17:20h 1872

From The Catalogue (2000).

Makes you think, don't it! Seems to be a connection here.
Any info on the trajectory at those falls?

although I
don't think that
difference is significant.

Regards,
Bjørn Sørheim
http://home.online.no/~bsoerhei/astro/meteor/060714/moss.htmlFresh 
'Moss'...


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Dr. Jeffrey N. Grossman   phone: (703) 648-6184
US Geological Survey  fax:   (703) 648-6383
954 National Center
Reston, VA 20192, USA


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-30 Thread Bjorn Sorheim

Jeff Grossman wrote:
Yes, I noticed that too. Could just be a
coincidence, however. The dates are almost 2 weeks apart.
jeff

But when you look at the other CO3 falls it becomes
a bit obvious:

Warrenton , Fall 3rd January 1877, 07:15h
Felix,  Fall 15th May 1900, 11:30h
Kainsaz, Fall 13th September 1937, 14:15h

Apparently spread out through the year quite randomly.


At 02:21 PM 8/30/2006, Bjorn Sorheim wrote:
Michael Farmer wrote:
 Hello everyone, well here is the preliminary
 classification data on the MOSS Norway meteorite fall.
 Dr Jeff Grossman is doing the classification and he
 sent me the following information a little while ago.
.

 Avg Fa PMD
 Kainsaz (CO3.2) 11.8 70
 Felix (CO3.3) 18.4 70
 Ornans (CO3.4) 19.0 68
 Lance (CO3.5) 21.2 63
 Warrenton (CO3.7) 33.9 21

 Moss 19.9 65

 This puts Moss between Ornans and Lance,

Yes, you are so right Dr Grossman! Just look here:

Ornans , Fall 11th July, 19:15h 1868
Moss, Fall 14th July, 10:15h 2006
Lance, Fall 23rd July, 17:20h 1872

 From The Catalogue (2000).

Makes you think, don't it! Seems to be a connection here.
Any info on the trajectory at those falls?

 although I
 don't think that
 difference is significant.

Regards,
Bjørn Sørheim
http://home.online.no/~bsoerhei/astro/meteor/060714/moss.html  Fresh 'Moss'


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-30 Thread Fred Caillou Noir
Thanks Bernd, I'm one of those who were wondering!
Kind regards
Fred
- Original Message - 
From: [EMAIL PROTECTED]
To: Meteorite-list@meteoritecentral.com
Sent: Wednesday, August 30, 2006 9:17 PM
Subject: [meteorite-list] Preliminary MOSS meteorite classification


 Jeff Grossman kindly wrote to Mike Farmer:
 
 Petrologically, Moss is a CO3. It contains chondrules, CAIs, AOIs, and
 metal/sulfide grains in the appropriate size range ... The distribution
 of chondrule types is typical for a CO3.
 
 Just in case list members have been asking themselves what
 AOIs are. If I am not mistaken this is an acronym for:
 
 A-moeboid
 O-livine
 I-nclusion
 
 .. not sure though!
 
 
 Carbonaceously,
 
 Bernd
 
 __
 Meteorite-list mailing list
 Meteorite-list@meteoritecentral.com
 http://six.pairlist.net/mailman/listinfo/meteorite-list

__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-30 Thread E.P. Grondine
Hi all - 

Dammit! The only way that you would have an annual
fall would be if a debris stream intersected the Earth
at the same time each year.  This is highly unlikely.

What these people (I can't do it myself any longer)
need to be looking for is regular intervals, and
multiples of those intervals, between falls.  Then
they could establish a debris stream's orbit.

If a debris stream intersection period could be
established, then one could stay up on the appropriate
nights, watch for bolides, triangulate, and voila,
meteorites on demand so to speak.


good hunting,
Ed

--- Bjorn Sorheim [EMAIL PROTECTED] wrote:

 Jeff Grossman wrote:
  Yes, I noticed that too. Could just be a
  coincidence, however. The dates are almost 2 weeks
 apart.
  jeff
 
 But when you look at the other CO3 falls it becomes
 a bit obvious:
 
 Warrenton , Fall 3rd January 1877, 07:15h
 Felix,  Fall 15th May 1900, 11:30h
 Kainsaz, Fall 13th September 1937, 14:15h
 
 Apparently spread out through the year quite
 randomly.
 
 
  At 02:21 PM 8/30/2006, Bjorn Sorheim wrote:
  Michael Farmer wrote:
   Hello everyone, well here is the preliminary
   classification data on the MOSS Norway
 meteorite fall.
   Dr Jeff Grossman is doing the classification
 and he
   sent me the following information a little
 while ago.
  .
  
   Avg Fa PMD
   Kainsaz (CO3.2) 11.8 70
   Felix (CO3.3) 18.4 70
   Ornans (CO3.4) 19.0 68
   Lance (CO3.5) 21.2 63
   Warrenton (CO3.7) 33.9 21
  
   Moss 19.9 65
  
   This puts Moss between Ornans and Lance,
  
  Yes, you are so right Dr Grossman! Just look
 here:
  
  Ornans , Fall 11th July, 19:15h 1868
  Moss, Fall 14th July, 10:15h 2006
  Lance, Fall 23rd July, 17:20h 1872
  
   From The Catalogue (2000).
  
  Makes you think, don't it! Seems to be a
 connection here.
  Any info on the trajectory at those falls?
  
   although I
   don't think that
   difference is significant.
 
 Regards,
 Bjørn Sørheim

http://home.online.no/~bsoerhei/astro/meteor/060714/moss.html
  Fresh 'Moss'
 
 
 __
 Meteorite-list mailing list
 Meteorite-list@meteoritecentral.com

http://six.pairlist.net/mailman/listinfo/meteorite-list
 


__
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 
__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


RE: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-30 Thread Jeff Grossman
The odds may not be as astronomical as you 
think.  I estimate that the probability that 3 
out of 6 random people were born in the same month is just over 10%.


jeff

At 02:41 PM 8/30/2006, Michael Farmer wrote:

That is amazing though, how with only 6 witnessed falls in the last 200
years of CO3 meteorites, 50% of them are in July! Those are some
astronomical odds!
Mike Farmer

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff
Grossman
Sent: Wednesday, August 30, 2006 11:35 AM
To: meteorite-list@meteoritecentral.com
Subject: Re: [meteorite-list] Preliminary MOSS meteorite classification

Yes, I noticed that too.  Could just be a
coincidence, however.  The dates are almost 2 weeks apart.

jeff
At 02:21 PM 8/30/2006, Bjorn Sorheim wrote:


Michael Farmer wrote:
 Hello everyone, well here is the preliminary
 classification data on the MOSS Norway meteorite fall.
 Dr Jeff Grossman is doing the classification and he
 sent me the following information a little while ago.
.

 Avg Fa PMD
 Kainsaz (CO3.2) 11.8 70
 Felix (CO3.3) 18.4 70
 Ornans (CO3.4) 19.0 68
 Lance (CO3.5) 21.2 63
 Warrenton (CO3.7) 33.9 21

 Moss 19.9 65

 This puts Moss between Ornans and Lance,

Yes, you are so right Dr Grossman! Just look here:

Ornans , Fall 11th July, 19:15h 1868
Moss, Fall 14th July, 10:15h 2006
Lance,Fall 23rd July, 17:20h 1872

 From The Catalogue (2000).

Makes you think, don't it! Seems to be a connection here.
Any info on the trajectory at those falls?

 although I
 don't think that
 difference is significant.

Regards,
Bjørn Sørheim
http://home.online.no/~bsoerhei/astro/meteor/060714/moss.htmlFresh
'Moss'...

__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list

Dr. Jeffrey N. Grossman   phone: (703) 648-6184
US Geological Survey  fax:   (703) 648-6383
954 National Center
Reston, VA 20192, USA


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Dr. Jeffrey N. Grossman   phone: (703) 648-6184
US Geological Survey  fax:   (703) 648-6383
954 National Center
Reston, VA 20192, USA


__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list


Re: [meteorite-list] Preliminary MOSS meteorite classification

2006-08-30 Thread Larry Lebofsky
Hi Ed:

That is almost as hard to believe as meteor showers (debris from a comet) 
occurring on the same day each year!

Actually, probably does not have to be every year, just every few years. If 
these come from the breakup of a near Earth asteroid, the debris would 
probably spread out from the asteroid in a manner similar to a comet tail.

Larry

Quoting E.P. Grondine [EMAIL PROTECTED]:

 Hi all - 
 
 Dammit! The only way that you would have an annual
 fall would be if a debris stream intersected the Earth
 at the same time each year.  This is highly unlikely.
 
 What these people (I can't do it myself any longer)
 need to be looking for is regular intervals, and
 multiples of those intervals, between falls.  Then
 they could establish a debris stream's orbit.
 
 If a debris stream intersection period could be
 established, then one could stay up on the appropriate
 nights, watch for bolides, triangulate, and voila,
 meteorites on demand so to speak.
 
 
 good hunting,
 Ed
 
 --- Bjorn Sorheim [EMAIL PROTECTED] wrote:
 
  Jeff Grossman wrote:
   Yes, I noticed that too. Could just be a
   coincidence, however. The dates are almost 2 weeks
  apart.
   jeff
  
  But when you look at the other CO3 falls it becomes
  a bit obvious:
  
  Warrenton , Fall 3rd January 1877, 07:15h
  Felix,  Fall 15th May 1900, 11:30h
  Kainsaz, Fall 13th September 1937, 14:15h
  
  Apparently spread out through the year quite
  randomly.
  
  
   At 02:21 PM 8/30/2006, Bjorn Sorheim wrote:
   Michael Farmer wrote:
Hello everyone, well here is the preliminary
classification data on the MOSS Norway
  meteorite fall.
Dr Jeff Grossman is doing the classification
  and he
sent me the following information a little
  while ago.
   .
   
Avg Fa PMD
Kainsaz (CO3.2) 11.8 70
Felix (CO3.3) 18.4 70
Ornans (CO3.4) 19.0 68
Lance (CO3.5) 21.2 63
Warrenton (CO3.7) 33.9 21
   
Moss 19.9 65
   
This puts Moss between Ornans and Lance,
   
   Yes, you are so right Dr Grossman! Just look
  here:
   
   Ornans , Fall 11th July, 19:15h 1868
   Moss, Fall 14th July, 10:15h 2006
   Lance, Fall 23rd July, 17:20h 1872
   
From The Catalogue (2000).
   
   Makes you think, don't it! Seems to be a
  connection here.
   Any info on the trajectory at those falls?
   
although I
don't think that
difference is significant.
  
  Regards,
  Bjørn Sørheim
 
 http://home.online.no/~bsoerhei/astro/meteor/060714/moss.html
   Fresh 'Moss'
  
  
  __
  Meteorite-list mailing list
  Meteorite-list@meteoritecentral.com
 
 http://six.pairlist.net/mailman/listinfo/meteorite-list
  
 
 
 __
 Do You Yahoo!?
 Tired of spam?  Yahoo! Mail has the best spam protection around 
 http://mail.yahoo.com 
 __
 Meteorite-list mailing list
 Meteorite-list@meteoritecentral.com
 http://six.pairlist.net/mailman/listinfo/meteorite-list
 


-- 
Dr. Larry A. Lebofsky
Senior Research Scientist
Co-editor, Meteorite  If you give a man a fish,   
Lunar and Planetary Laboratory   you feed him for a day.
1541 East University   If you teach a man to fish,
University of Arizonayou feed him for a lifetime.
Tucson, AZ 85721-0063 ~Chinese Proverb
Phone:  520-621-6947
FAX:520-621-8364
e-mail: [EMAIL PROTECTED]
__
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://six.pairlist.net/mailman/listinfo/meteorite-list