Re: [meteorite-list] Impactor detection budget

[Richard Kowalski]

Ed,

Most of what you asked was not discussed during the meeting as it had nothing 
to do with the topic of the meeting. I'm no expert in much of what you ask.

We've already covered the use of radar for NEO detection extensively on this 
list. "In space" means not on the earth's surface, so the lunar surface is 
included by default. Lidar has all of the same issues that radar has so is 
unusable for this purpose.

PS1 has been operating for some months now and regularly discovers NEOs. PS2, 
as far as I know is under construction adjacent to PS1 on Haleakala. PS4 is 
essentially, but not officially dead.

Sorry, but I have no interest in other programs funding and that certainly was 
not part of our meeting. Anything I have heard about other program's funding 
is, as far as I am concerned, hearsay, unless it is available as public record, 
in which case anyone should be able to find that online.

I can say Catalina is funded through the end of this year. This is the end of 
our normal 3 year funding cycle. We will be proposing to be extended another 
three years later this year.

Our continuation beyond this year will depends on what Congress decides to 
budget in the near future.


--
Richard Kowalski
Full Moon Photography
IMCA #1081
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Re: [meteorite-list] Impactor detection budget

[E.P. Grondine]

Hi Richard - 

Thanks for your concise report.

Last I heard, the AF had walked away from PS1, and Weiler was not walking in. 

Did you learn at your meeting what's going on with PanStarrs operation and 
funding?

Some more stupid questions: 

Assume that every 26 million years or so the Earth gets pounded by a Long 
Period Comet. (In other words, Clube and Napier's injection model is correct, 
and not Mueller and Morrison's Nemesis model.

What is the best way of getting the earliest warning of an inbound LPC? 
Not the cheapest, but the BEST.

Assume that the ELE for humans (in contrast to other species) is about once per 
1,000,000 years. How much is it worth to find our what hit, whether comet or 
asteroid? 

Assume that small 30 m cometissimals hit the Earth quite often and cause 5 kt 
airbursts and can come from any direction without prior passes. Does a radar or 
lidar system based on the Moon then make sense for detection?

Do you know if anyone in the US federal government has responsibility for 
investigating geoblemes or tsunami remains?

Finally, what is the current state of the imaging of 73P's fragment stream?
Will WISE be able to make 2 band observations?

Thanks. That about uses up all my stupidity for the evening.

E.P. Grondine
Man and Impact in the Americas



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Re: [meteorite-list] Life

[E.P. Grondine]

Hi all - 

As many of you know, I've had a stroke, and really don't want to become 
involved in this but - 

There's the facts, and then sometimes people try to define you for their own 
interest.

There's been times when I have not recognized myself, and it can damage you, 
and dealing with it is costly - as is not dealing with it. 

If a person is acting as an agent in a sale for another individual, then 
clearly they do not own the item sold. I do think that involving Mrs' King in 
the Texas Draw meteorite was probably not wise decision on Steve's part, but 
perhaps Mrs King insisted. It was clearly not as easy a deal as Steve estimated.

Steve's "f---" message show that he tried to look out for the interests of 
others, to the point of frustration.

There is another item at stake in this discussion, which is the GOOD WILL will 
of the television show "Meteorite Men", which was not mentioned. This GOOD WILL 
also is of benefit to Discovery Channel and other parties.

It says lot about Steve's character that he has not gone for damages.
His abilities as an agent for owners was cast into doubt.

I will add that the observation on ownership is very valid, as is the 
comparison to the art world.

Steve, and Geoff, watch your blood pressure - and congratulations on taking 
meteorite collecting and collectables to a whole 'nother level - 

all the best - 
Ed
E.P. Grondine
Man and Impact in the Americas
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Re: [meteorite-list] Cold Asteroids May Have ASoftHeart(AllendeMeteorite)

[lebofsky]

Richard:

Not a silly question.

If you go to this link and look at the two ranges around 3 microns, you
will see what the atmosphere looks like (the same either way).

http://www.astro.virginia.edu/~mfs4n/ir/atmtrans.html

When we do (I used to do) 3-micron observations, there was a region were
we could not observe much of anything (even on a mountain top with less
air).

The thing that allows us to observe the clay mineral feature is that it is
centered between 3.0 and 3.1 microns (the difference between water
molecules in the air and water in the mineral). But still a tough
observation which takes a lot of care to make sure that we can take out
the effects of the atmosphere,

Larry

> Okay, List, ready for another neophyte question? Here goes:
>
> Looking FROM space to the Earth, does the absorption spectra of our planet
> in the 3-micron band (water) measure proportionate, i.e. zero in that
> band,
> which would relegate much of what is seen of US to be non-reflective?   Do
> such measurements exist?
>
> Curious Richard Montgomery
>
>
> - Original Message -
> From: "Sterling K. Webb" 
> To: 
> Cc: "metlist" ; "MEM"
> 
> Sent: Saturday, April 16, 2011 1:31 PM
> Subject: Re: [meteorite-list] Cold Asteroids May Have
> ASoftHeart(AllendeMeteorite)
>
>
>> Hi, Larry, List,
>>
>> As usual, I grabbed an idea and ran off the cliff
>> with it; now Larry has handed me the anvil, just
>> like I was the well-known cartoon Coyote. And also,
>> as usual, Larry is right. Must be gratifying, having
>> someone who has to keep posting that you are right,
>> Larry...
>>
>> Larry said
>>> The presence of hydrated silicates on asteroid
>>> 2 Pallas dates back to the early 1980s
>>
>> Larry is referring modestly to:
>> Feierberg, M. A.; Larson, H. P.; LEBOFSKY, L. A. (1982).
>> "The 3 Micron Spectrum of Asteroid 2 Pallas.".
>> Bulletin of the American Astronomical Society 14: 719.
>> Unfortunately, the ADS system only gives the page with
>> the title at the bottom of the page and then cuts off the
>> article which starts on the next page...
>>
>> Although, in my defense, I could cite:
>> http://www.lpi.usra.edu/books/AsteroidsIII/pdf/3031.pdf
>> in which there is a table that shows Pallas (B-class)
>> with ZERO absorption in the 3-micron band (water,
>> in other words). Also has "Lebofsky, L. A." as an author.
>>
>> Links to all or part of Larry's 304 articles:
>> http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?return_req=no_params&author=Lebofsky,%20L.%20A.&db_key=AST
>>
>> Looking for water (or anything like it) by peering through
>> the wet sodden atmosphere of Earth is a chancy business;
>> the data needs to massaged. I'm not suggesting that the
>> data isn't reliable, just that it's likely to have fuzzy edges.
>>
>> Just an abstract, but summarizes well:
>> http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WGF-4731CCX-DV&_user=10&_coverDate=12%2F31%2F1983&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1720558577&_rerunOrigin=google&_acct=C50221&_version=1&_urlVersion=0&_userid=10&md5=b3a90d3f66329ead2085b10dd7dbde6b&searchtype=a
>>"High resolution spectroscopic observations of
>> asteroid 2 Pallas from 1.7-3.5 μm are reported.
>> These data are combined with previous measurements
>> from 0.4-1.7 μm to interpret Pallas' surface mineralogy.
>> Evidence is found for low-Fe-2+ hydrated silicates,
>> opaque components, and low-Fe-2+ anhydrous silicates.
>> This assemblage is very similar to carbonaceous chondrite
>> matrix material such as is found in type CI and CM
>> meteorites, but it has been subjected to substantial
>> aqueous alteration and there is a major extraneous
>> anhydrous silicate component. This composition is
>> compared to that of asteroid 1 Ceres. Although there
>> are substantial differences in their broad band spectral
>> reflectances, it appears that both asteroids are genetically
>> related to known carbonaceous chondrites."
>>
>> These folks thinks it's drier than Larry's studies:
>> Sato, Kimiyasu; Miyamoto, Masamichi; Zolensky, Michael E.
>> (1997).  "Absorption bands near 3 m in diffuse reflectance
>> spectra of carbonaceous chondrites: Comparison with asteroids"
>> http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1997M%26PS...32..503S&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf
>>
>> More new looks. These guys think Pallas is smaller
>> than previously thought, they say, and they have refined
>> that strange shape (very nice graphics):
>> http://www.eso.org/sci/activities/santiago/projects/PlanetaryGroup/journal_club/slides/ESO.JournalClub-2007.08.14-BenoitCARRY.pdf
>> And if it were smaller but the mass is correct, then Pallas'
>> density would be higher. That would have implications
>> for trying to mentally reconstruct it...
>>
>> And of course in Larry's second reference, Pallas is
>> bigger than we thought and hence less dense. This
>> suggests we have a way to go in order to pin this down.
>>

[meteorite-list] AD - Finally some new stuff!

[Impactika]

Hello,

The MetList is very quiet today!
Well, maybe I'll wake up a few of you.

I finally got it done in between interruptions and problems, and here is a 
first installment of all the pieces I want to add to the Meteorites-Irons 
and the Meteorites-Stones pages. You will find on the Iron page a very rare 
little part slice of Goose Lake, the real thing not shale, a nice assortment 
of Esquel slices, some Imilac and Estherville (those are getting scarce!), 
and a whole bunch of Mundrabillas. On the Stones page you will find another 
rare one: Leighlinbridge!, a few more slices of Bencubbin (that one too is 
getting scarce) and a great choice of Holbrook directly from the lucky guy who 
found them. And some Pultusk, not particularly rare, but not often seen as 
slices. And there will be more as soon as I can. Enjoy!!
And while I was at it, I also did a quick update on the Jewelry page. 
Also, just in case you have not seen it yet, or lost the link, I posted on 
my News page a link to the rebuttal to the ugly article published by the New 
York Times a couple weeks ago, a great example of a reporter not doing his 
job!. 

Any questions?  Just ask!

Anne M. Black
http://www.impactika.com/
impact...@aol.com
President, I.M.C.A. Inc.
http://www.imca.cc/
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Re: [meteorite-list] Cold Asteroids May Have ASoftHeart(AllendeMeteorite)

[Richard Montgomery]

Okay, List, ready for another neophyte question? Here goes:

Looking FROM space to the Earth, does the absorption spectra of our planet 
in the 3-micron band (water) measure proportionate, i.e. zero in that band, 
which would relegate much of what is seen of US to be non-reflective?   Do 
such measurements exist?


Curious Richard Montgomery


- Original Message - 
From: "Sterling K. Webb" 

To: 
Cc: "metlist" ; "MEM" 


Sent: Saturday, April 16, 2011 1:31 PM
Subject: Re: [meteorite-list] Cold Asteroids May Have 
ASoftHeart(AllendeMeteorite)




Hi, Larry, List,

As usual, I grabbed an idea and ran off the cliff
with it; now Larry has handed me the anvil, just
like I was the well-known cartoon Coyote. And also,
as usual, Larry is right. Must be gratifying, having
someone who has to keep posting that you are right,
Larry...

Larry said

The presence of hydrated silicates on asteroid
2 Pallas dates back to the early 1980s


Larry is referring modestly to:
Feierberg, M. A.; Larson, H. P.; LEBOFSKY, L. A. (1982).
"The 3 Micron Spectrum of Asteroid 2 Pallas.".
Bulletin of the American Astronomical Society 14: 719.
Unfortunately, the ADS system only gives the page with
the title at the bottom of the page and then cuts off the
article which starts on the next page...

Although, in my defense, I could cite:
http://www.lpi.usra.edu/books/AsteroidsIII/pdf/3031.pdf
in which there is a table that shows Pallas (B-class)
with ZERO absorption in the 3-micron band (water,
in other words). Also has "Lebofsky, L. A." as an author.

Links to all or part of Larry's 304 articles:
http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?return_req=no_params&author=Lebofsky,%20L.%20A.&db_key=AST

Looking for water (or anything like it) by peering through
the wet sodden atmosphere of Earth is a chancy business;
the data needs to massaged. I'm not suggesting that the
data isn't reliable, just that it's likely to have fuzzy edges.

Just an abstract, but summarizes well:
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WGF-4731CCX-DV&_user=10&_coverDate=12%2F31%2F1983&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1720558577&_rerunOrigin=google&_acct=C50221&_version=1&_urlVersion=0&_userid=10&md5=b3a90d3f66329ead2085b10dd7dbde6b&searchtype=a
   "High resolution spectroscopic observations of
asteroid 2 Pallas from 1.7-3.5 μm are reported.
These data are combined with previous measurements
from 0.4-1.7 μm to interpret Pallas' surface mineralogy.
Evidence is found for low-Fe-2+ hydrated silicates,
opaque components, and low-Fe-2+ anhydrous silicates.
This assemblage is very similar to carbonaceous chondrite
matrix material such as is found in type CI and CM
meteorites, but it has been subjected to substantial
aqueous alteration and there is a major extraneous
anhydrous silicate component. This composition is
compared to that of asteroid 1 Ceres. Although there
are substantial differences in their broad band spectral
reflectances, it appears that both asteroids are genetically
related to known carbonaceous chondrites."

These folks thinks it's drier than Larry's studies:
Sato, Kimiyasu; Miyamoto, Masamichi; Zolensky, Michael E.
(1997).  "Absorption bands near 3 m in diffuse reflectance
spectra of carbonaceous chondrites: Comparison with asteroids"
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1997M%26PS...32..503S&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

More new looks. These guys think Pallas is smaller
than previously thought, they say, and they have refined
that strange shape (very nice graphics):
http://www.eso.org/sci/activities/santiago/projects/PlanetaryGroup/journal_club/slides/ESO.JournalClub-2007.08.14-BenoitCARRY.pdf
And if it were smaller but the mass is correct, then Pallas'
density would be higher. That would have implications
for trying to mentally reconstruct it...

And of course in Larry's second reference, Pallas is
bigger than we thought and hence less dense. This
suggests we have a way to go in order to pin this down.

It should be explained (if anybody is still following this)
that Pallas is not easy to observe -- it dark and its
eccentric orbit carries it far enough away to be very
dim except at those short intervals when it's close to
the Sun and the Earth passes it at its nearest approach.

Is there a general trend toward our perceiving primitive
meteorites as drier than we thought?. See:
"Primitive Meteorites Depleted in Volatiles "(press release)
quotes from Phil Bland and Monica Grady:
http://www.pparc.ac.uk/Nw/meteorite.asp

Obviously, Pallas is not "dry" in the same sense as the
Moon or Mercury and I was wrong to imply that,
although it might be less than 10%. The Sato paper
suggests it's more like Renazzo than like Larry's
suggestion of Murchison, or about half as "wet."
5%?

There's no substitution for actually going there and
looking it over for yourself, which someday we'll be
able to. Until then, we'll have to

[meteorite-list] AD: Last Sale and Auction Run For Awhile- Ends Sunday!

[michael cottingham]

Hello,

I have over 50 auctions ending tomorrow and a 40% off sale going on... headed 
to the field!

Thanks,
Michael Cottingham

ALL SALE ITEMS HERE:

http://stores.ebay.com/voyage-botanica-natural-history

ALL AUCTIONS HERE:

http://shop.ebay.com:80/merchant/meteorite-collector_W0QQLHQ5fAuctionZ1QQ
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Re: [meteorite-list] Rocks from Space Picture of the Day - April 16, 2011

[meteoriteguy.com]

Amazing piece, true history preserved.
Thanks for the photo Michael and Laurence!
Michael Farmer

Sent from my iPhone

On Apr 16, 2011, at 10:33 AM, Michael Johnson  
wrote:

> http://www.rocksfromspace.org/April_16_2011.html
> 
> 
> -
> __
> Visit the Archives at 
> http://www.meteoritecentral.com/mailing-list-archives.html
> Meteorite-list mailing list
> Meteorite-list@meteoritecentral.com
> http://six.pairlist.net/mailman/listinfo/meteorite-list
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[meteorite-list] chondryle conglomerate

[steve arnold]

Hi and good day list.I know it has been a while,but does anyone remember the 
nwa 
number of the chondrule conglomerate that rob elliott let us know about 
sometime 
ago?Thanks and have a great day.
 Steve R.Arnold, Chicago! 
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[meteorite-list] AD - If you got ten bucks...

[Rob Wesel]

I'll trade you a Franconia iron, better known as Sacramento Wash 005
http://www.nakhladogmeteorites.com/catalog/franciron.htm

Small enough to get in an envelope so shipping is free

Also have some auctions closing in an hour
http://shop.ebay.com/nakhladog/m.html

Rob Wesel 
--

Nakhla Dog Meteorites
www.nakhladogmeteorites.com
www.facebook.com/Nakhla.Dog.Meteorites
www.facebook.com/Rob.Wesel
--
We are the music makers...
and we are the dreamers of the dreams.
Willy Wonka, 1971


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Re: [meteorite-list] Trying to contact Joe Kerchner & Ensisheim show

[Michael Bross]

Dear Zelimir

I guess you might have a problem with your mailbox or server.
I sent you a private email (from France), and it seems you didn't get it.
(I didn't get any email from my ISP stating that my email to you didn't make 
it)


Michael B.



From: zelimir.gabel...@uha.fr
Sent: Thursday, April 14, 2011 11:58 PM
To: meteorite-list@meteoritecentral.com
Subject: [meteorite-list] Trying to contact Joe Kerchner & Ensisheim show


Dear List,

Sorry to have to use this kind of contact.

I am desperately trying to contact Joe Kerchner for a very urgent reason.
Apparently he does not receive any of my numerous mails while I can
read him perfectly.
Possibly there is a problem with his mail box?

Today, he tried to contact me through the list.
I replied (him specifically) but he still can't read me.

Could someone from the list help me in concacting Joe and tell him
that he should try to find out a way to read my messages?
But through this message I believe Joe can (finally!) read me ?

Or is somebody willing me to receive my message for Joe and send him
(in case it is my server that is responsible for the lack of contact) ?

Thanks to all!

Zelimir 


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Re: [meteorite-list] Cold Asteroids May Have A SoftHeart(AllendeMeteorite)

[Sterling K. Webb]

Hi, Larry, List,

As usual, I grabbed an idea and ran off the cliff
with it; now Larry has handed me the anvil, just
like I was the well-known cartoon Coyote. And also,
as usual, Larry is right. Must be gratifying, having
someone who has to keep posting that you are right,
Larry...

Larry said

The presence of hydrated silicates on asteroid
2 Pallas dates back to the early 1980s


Larry is referring modestly to:
Feierberg, M. A.; Larson, H. P.; LEBOFSKY, L. A. (1982).
"The 3 Micron Spectrum of Asteroid 2 Pallas.".
Bulletin of the American Astronomical Society 14: 719.
Unfortunately, the ADS system only gives the page with
the title at the bottom of the page and then cuts off the
article which starts on the next page...

Although, in my defense, I could cite:
http://www.lpi.usra.edu/books/AsteroidsIII/pdf/3031.pdf
in which there is a table that shows Pallas (B-class)
with ZERO absorption in the 3-micron band (water,
in other words). Also has "Lebofsky, L. A." as an author.

Links to all or part of Larry's 304 articles:
http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?return_req=no_params&author=Lebofsky,%20L.%20A.&db_key=AST

Looking for water (or anything like it) by peering through
the wet sodden atmosphere of Earth is a chancy business;
the data needs to massaged. I'm not suggesting that the
data isn't reliable, just that it's likely to have fuzzy edges.

Just an abstract, but summarizes well:
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WGF-4731CCX-DV&_user=10&_coverDate=12%2F31%2F1983&_rdoc=1&_fmt=high&_orig=gateway&_origin=gateway&_sort=d&_docanchor=&view=c&_searchStrId=1720558577&_rerunOrigin=google&_acct=C50221&_version=1&_urlVersion=0&_userid=10&md5=b3a90d3f66329ead2085b10dd7dbde6b&searchtype=a
   "High resolution spectroscopic observations of
asteroid 2 Pallas from 1.7-3.5 μm are reported.
These data are combined with previous measurements
from 0.4-1.7 μm to interpret Pallas' surface mineralogy.
Evidence is found for low-Fe-2+ hydrated silicates,
opaque components, and low-Fe-2+ anhydrous silicates.
This assemblage is very similar to carbonaceous chondrite
matrix material such as is found in type CI and CM
meteorites, but it has been subjected to substantial
aqueous alteration and there is a major extraneous
anhydrous silicate component. This composition is
compared to that of asteroid 1 Ceres. Although there
are substantial differences in their broad band spectral
reflectances, it appears that both asteroids are genetically
related to known carbonaceous chondrites."

These folks thinks it's drier than Larry's studies:
Sato, Kimiyasu; Miyamoto, Masamichi; Zolensky, Michael E.
(1997).  "Absorption bands near 3 m in diffuse reflectance
spectra of carbonaceous chondrites: Comparison with asteroids"
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1997M%26PS...32..503S&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

More new looks. These guys think Pallas is smaller
than previously thought, they say, and they have refined
that strange shape (very nice graphics):
http://www.eso.org/sci/activities/santiago/projects/PlanetaryGroup/journal_club/slides/ESO.JournalClub-2007.08.14-BenoitCARRY.pdf
And if it were smaller but the mass is correct, then Pallas'
density would be higher. That would have implications
for trying to mentally reconstruct it...

And of course in Larry's second reference, Pallas is
bigger than we thought and hence less dense. This
suggests we have a way to go in order to pin this down.

It should be explained (if anybody is still following this)
that Pallas is not easy to observe -- it dark and its
eccentric orbit carries it far enough away to be very
dim except at those short intervals when it's close to
the Sun and the Earth passes it at its nearest approach.

Is there a general trend toward our perceiving primitive
meteorites as drier than we thought?. See:
"Primitive Meteorites Depleted in Volatiles "(press release)
quotes from Phil Bland and Monica Grady:
http://www.pparc.ac.uk/Nw/meteorite.asp

Obviously, Pallas is not "dry" in the same sense as the
Moon or Mercury and I was wrong to imply that,
although it might be less than 10%. The Sato paper
suggests it's more like Renazzo than like Larry's
suggestion of Murchison, or about half as "wet."
5%?

There's no substitution for actually going there and
looking it over for yourself, which someday we'll be
able to. Until then, we'll have to have fun guessing
and peeking through the wet murk of Earth.



Sterling K. Webb
-
- Original Message - 
From: 

To: "Sterling K. Webb" 
Cc: "metlist" ; "MEM" 


Sent: Saturday, April 16, 2011 11:27 AM
Subject: Re: [meteorite-list] Cold Asteroids May Have A 
SoftHeart(AllendeMeteorite)




Hi Sterling

Sorry for taking so long in responding, but I am still catching up from
being out of email access for three days this weekend and I missed this
one.

The presence of h

[meteorite-list] AD: ebay auctions ending, new material available.

[Moritz Karl]

Dear List,

First of all I would like to let you know that I have 11 ebay auctions
ending tomorrow, Sunday april 17th starting at 12:01 PDT.
There are some nice items up for sale.
You can see them here:

http://tinyurl.com/3tmracl

Or you can see all items for sale in my store here:

http://stores.ebay.com/mos-meteorites

Now I would like to introduce two new meteorites available for sale.

First is NWA 4945. This is a very fresh enstatite chondrite. 
The classification is EL6. 
Weathering grade is W0 and shock stage is S1.
Please see all available pieces here:

http://www.m3t3orites.com/meteorites/nwa4945.php


Second is NWA 5956, a carbonaceous chondrite of the CK-group. 
The petrological type is 3.
You can see all available pieces here:

http://www.m3t3orites.com/meteorites/nwa5956.php

Please let me know if you have any questions.
I will handle orders in the order I receive them.
Best Wishes,
Moritz Karl
Mo's meteorites
Germany

IMCA: #0818

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[meteorite-list] Rocks from Space Picture of the Day - April 16, 2011

[Michael Johnson]

http://www.rocksfromspace.org/April_16_2011.html


-
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Re: [meteorite-list] Cold Asteroids May Have A SoftHeart(AllendeMeteorite)

[lebofsky]

Hi Sterling

Sorry for taking so long in responding, but I am still catching up from
being out of email access for three days this weekend and I missed this
one.

The presence of hydrated silicates on asteroid 2 Pallas dates back to the
early 1980s and has been confirmed numerous times and spectrally matches
Murchison.

So unless you imply low water as being only about 10% water by mass,
Pallas is not dry!

Larry

http://www.lpi.usra.edu/meetings/LPSC98/pdf/1310.pdf

http://adsabs.harvard.edu/abs/2008DPS40.2204S

>> It shows signs of olive and pyroxene,
>
> I meant OLIVINE, of course.
>
>> when we got their...
>
> and THERE. Spell checkers don't catch
> these mistakes, only working brains, so...
> New rule: No more Posts after midnight.
>
>
> Sterling K. Webb
> -
> - Original Message -
> From: "Sterling K. Webb" 
> To: "MEM" ; "Richard Montgomery"
> ; "metlist"
> 
> Sent: Thursday, April 14, 2011 1:21 AM
> Subject: Re: [meteorite-list] Cold Asteroids May Have A
> SoftHeart(AllendeMeteorite)
>
>
> Hi,
>
> Way too much stuff here to deal with all,
> but I have a word about 2 Pallas as a
> "Carbonaceous parent body."
>
> Pallas has a silicate spectrum. A great many
> bodies do. It shows signs of olive and pyroxene,
> with low iron and water. If it resembles any
> Carbonaceous chondrite, it's a CR with no
> hydrated minerals or very little.
>
> Pallas is very dark, with an albedo of 12%-14%,
> almost as dark as our moon, whose albedo is
> 7% to 8%. Yes, when we look at the Moon
> at night, it looks BRIGHT, but in reality, the
> Moon is about the color and reflectivity of
> a huge lump of black anthracite coal.
>
> The fact that it doesn't look like a lump of coal
> in pictures taken on the Moon or looked to the
> astronauts as a very light grey demonstrates
> the ability of the human mind to scale image
> intensity to the Earth norm and to expose film
> to achieve similar results.
>
> Pallas is a little brighter than the Moon but
> some darker than Mercury which is about 15%
> to 16% albedo. Of course, if a human eye was ON
> Mercury, the planet would appear to us as blazing
> white under sunlight more than 2.5 times brighter
> than here at Earth.
>
> The density of Pallas is about 2.8. The similar
> sized Vesta is 3.43, our Moon 3.35, Mercury . For
> comparison, Earth's crustal rocks, mostly silicates,
> have a mean density of about 3.0. It seems unlikely
> that Pallas has an iron core. Like the Moon and
> Mercury, it seems to be essentially waterless.
>
> The spectral "classifications," both the Tholin and
> the 2Mass, classify a great many asteroids as varieties
> of "Carbonaceous," but we see far fewer Carbonaceous
> meteorites than they see asteroids!
>
> We spent many decades trying to analyze the surface
> of the Moon spectroscopically, it being so conveniently
> close and all, but none of it told us that much about
> what we'd find when we got their. Similarly, spectral
> studies of Mars from Earth are largely forgotten for
> the same reason: they were wrong.
>
> I expect Pallas to be excessively dry and waterless,
> made of excessively dark rock, primitive in composition,
> likely has little plagioclase on the surface, probably
> isn't "differentiated" and lacks basalt melts. But hey!
> I'm just guessing.
>
> There is a chance that we may get a look at Pallas.
> When the Dawn mission is mission is finished at Ceres,
> if all systems are functioning and fuel supplies are
> within parameters, it COULD be sent on a flyby of
> Pallas. Dawn couldn't orbit it, but it could grab a lot
> of lovely snapshots on that pass.
>
> Of course, we'd have to get it funded by Congress...
>
> Groan.
>
>
>
> Sterling K. Webb
> --
> - Original Message -
> From: "MEM" 
> To: "Richard Montgomery" ; "metlist"
> 
> Sent: Wednesday, April 13, 2011 9:31 PM
> Subject: Re: [meteorite-list] Cold Asteroids May Have A Soft
> Heart(AllendeMeteorite)
>
>
>> Let me play politician and ask to "revise and extend my remarks".
>> There are
>> asteroid gurus on the list who are more likely able to address this
>> and I'd like
>> to hear from them.  Your theory/question is partially in the right
>> direction so
>> let me re-frame it.  I believe we have "likely" detected all the
>> existent
>> asteroids in our inner solar system which are large enough to have
>> formed
>> basalt/cores--aka differentiated.  That size is hard
>> overlook(100-300km
>> minimum?).  I read somewhere that as many as 12-20 major/minor planets
>> would
>> have formed in the early solar system that are no longer with us  as
>> major/minor
>> intact bodies.( i.e. absorbed or ejected)
>>
>> As to meteorite parent bodies, what we have yet to inventory and, for
>> which we
>> have not had a specimen drop by Earth for comparison, are these long
>> ago
>> disrupted bodies.  These bodies  which now are represented only by
>> minor

[meteorite-list] AD: ENSISHEIM (Paris Museum), Luce', Lake Murray, Tagish Lake, Johnstown, PEEKSKILL, Wold Cottage, Barwell, Pena Blanca Springs, Abee, New Concord, Seres & much more ending on eBay!

[Shawn Alan]

Hello Listers, 

Thank you for taking a look at my post of meteorites I have for sale on eBay. 
Here is your chance to own some rare and historic meteorites. Please take a 
look and if you have any questions please email me and ill get back with you or 
if your looking for a bigger/smaller meteorite, let me know :)
A meteorite is a meteorite, but a meteorite with history and a legacy, will 
always add aura to your meteorite collection and value 

Thank you 


eBaystore 
http://shop.ebay.com/photophlow/m.html 


eBay style auctions 

ENSISHEIM meteorite 1492 from Paris Museum no.1 *Best of the Best*
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766757926&ssPageName=STRK:MESELX:IT


LUCE' meteorite-France 1768 very rare historic fall!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766755950&ssPageName=STRK:MESELX:IT


JOHNSTOWN meteorite rare Diogenite 1924 Colorado USA. *Just in*
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768291108&ssPageName=STRK:MESELX:IT


FARMINGTON meteorite fell in 1890 rare & historic fall
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768458875&ssPageName=STRK:MESELX:IT


Peña Blanca Spring meteorite rare aubrite 1946 fall *Just in*
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260769650439&ssPageName=STRK:MESELX:IT


BONITA SPRINGS found amoung skeletons in 1938 in FL USA
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768460513&ssPageName=STRK:MESELX:IT


WOLD COTTAGE rare meteorite 1795-1st classified from UK
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766758590&ssPageName=STRK:MESELX:IT


L'AIGLE Historic meteorite from France, 1803 vary rare * about 100mg*
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766754059&ssPageName=STRK:MESELX:IT


PEEKSKILL meteorite HAMMER STONE car smasher 1992 NY *Hammer Stone*
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766752440&ssPageName=STRK:MESELX:IT


NEW CONCORD meteorite 1860-Horse killer-ASU collection!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768459571&ssPageName=STRK:MESELX:IT


TAGISH LAKE meteorite 16mg-most amount of nanodiamonds
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766751492&ssPageName=STRK:MESELX:IT


LAKE MURRAY IIAB rare iron oldest terrestrial meteorite
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766754821&ssPageName=STRK:MESELX:IT


ABEE meteorite-ONLY know EH4 impact-melt breccia rare.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768460036&ssPageName=STRK:MESELX:IT


BARWELL meteorite Christmas meteorite fall/shower.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766759210&ssPageName=STRK:MESELX:IT


SERES meteorite 1818 1st and only meteorite from Greece
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260766753193&ssPageName=STRK:MESELX:IT


LOST CITY meteorite 1st fireball photo path in USA RARE
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768458371&ssPageName=STRK:MESELX:IT


ORGUEIL meteorite, very rare historic fall-1864!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260769656686&ssPageName=STRK:MESELX:IT


ESNANDES very rare historic meteorite fall- France 1837
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768292856&ssPageName=STRK:MESELX:IT


TAGISH LAKE meteorite 50mg LOT with nanodiamomds,rare!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768229986&ssPageName=STRK:MESELX:IT


WESTON - 1st USA meteorite, fell in 1807- RARE!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260768457731&ssPageName=STRK:MESELX:IT


TAGISH LAKE meteorite 100mg LOT with nanodiamomds,rare!
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260754500727&ssPageName=STRK:MESELX:IT


Shawn Alan 
IMCA 1633 
eBaystore 
http://shop.ebay.com/photophlow/m.html 









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[meteorite-list] Ad-ebay auctions, historic Monnig Deports

[mail]

Hello
I have a few auctions ending today, so please check them out at 
.  Also I have a few of the very 
historic Deport irons that Monnig hand stamped. These Deport irons were his 
first cataloged meteorites.  One can be seen on my site at 
http://www.mhmeteorites.com.  

Thanks
Matt Morgan

Matt Morgan
Mile High Meteorites
http://www.mhmeteorites.com
P.O. Box 151293
Lakewood, CO 80215
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[meteorite-list] info single Iron Meteorites

[Aloe Paolo]

Hi list ,
i find a single iron meteorite for students about from 50~250gr ...or more
depended from price :)
Some of you can help me ?!?

I live in Italy and i know that some time is shipment problems from USA or
other country

Thank you to all
Paolo A.





-- 
Aloe Paolo

Dipartimento di Fisica "E. Amaldi"
Universit� degli Studi Roma Tre
Via della Vasca Navale, 84
00146 Roma
Tel. 06/57337220 - Fax 06/57337331
e-mail: a...@fis.uniroma3.it
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[meteorite-list] AD Meteorites for sale (130 kg )

[M F]

Hi to all 
i hope everyone doing well .
I have big lot of meteorite about 130 kg of different kind and size of 
chondrite for sale with verry good price  . if interested feel free to contact 
me offlist  for the (pictures and price)
All my best 
Cell: +212663398272
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[meteorite-list] test

[M F]

delet plz 
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