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2010 AL30: Bright (14th mag) newly-discovered close approaching obj   Message List  
Reply Message #22763 of 27056 |
Re: {MPML} 2010 AL30: Bright (14th mag) newly-discovered close approaching object

Indeed.....visitors frequently ask me if I worry about the NEOs that I measure;
my
response:
"I don't worry about those that we keep up with....I am more concerned about the
ones we
never see coming."

This is a very interesting object.

Clay
_____
Dr. P. Clay Sherrod
Arkansas Sky Observatories
MPC H45 - Petit Jean Mountain South
MPC H41 - Petit Jean Mountain
MPC H43 - Conway West
http://www.arksky.org/

----- Original Message -----
From: "Andrea Boattini" <boattini@...>
To: "Alan Harris" <awharris@...>
Cc: <rmiles.btee@...>; <mpml@yahoogroups.com>
Sent: Monday, January 11, 2010 3:19 PM
Subject: Re: {MPML} 2010 AL30: Bright (14th mag) newly-discovered close
approaching object


>
> Since this object is almost on an impact trajectory, this is a great
> example of how much warning time we have for an object with H = 27.0
>
> Andrea
>
> The Catalina Sky Survey
>
> On Mon, 11 Jan 2010, Alan Harris wrote:
>
>> At 09:08 AM 1/11/2010, rmiles.btee@... wrote:
>> >RE. M.P.E.C. 2010-A59 Issued 2010 Jan. 11, 15:43 UT
>> >
>> >......
>> >The object is about H=27.0 and strangely has an orbital period of 1.00 yr
>> >(Is it man-made I wonder). If it is a natural object then it may be about
>> >10 meters across.
>>
>> Unlikely to be artificial, it's orbit doesn't resemble any useful
>> spacecraft trajectory, and its encounter velocity with the Earth is not
>> unusually low, around 9.5 km/sec "v_infinity". Perfectly ordinary
>> Earth-crossing orbit.
>>
>> But do go have a look at it, should be a super-fast rotator, P < 2 h, maybe
>> a lot under.
>>
>> Alan
>>
>> *******************************************************************
>> Alan W. Harris
>> Senior Research Scientist
>> Space Science Institute
>> 4603 Orange Knoll Ave. Phone: 818-790-8291
>> La Canada, CA 91011-3364 email: awharris@...
>> *******************************************************************
>>
>>
>
>
>
>
> ------------------------------------
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Posts to this list or information found within may be freely used, with the
stipulation
> that MPML and the originating author are cited as the source of the
information.Yahoo!
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>




Mon Jan 11, 2010 9:23 pm

drclay2002
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Message #22763 of 27056 |
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RE. M.P.E.C. 2010-A59 Issued 2010 Jan. 11, 15:43 UT A short note to say that at last after a rather long wait, a newly discovered object (asteroid?) has...
rmiles.btee@...
rmiles.btee... Offline Send Email
Jan 11, 2010
5:13 pm

... Unlikely to be artificial, it's orbit doesn't resemble any useful spacecraft trajectory, and its encounter velocity with the Earth is not unusually low,...
Alan Harris
harrisaw Offline Send Email
Jan 11, 2010
8:48 pm

Since this object is almost on an impact trajectory, this is a great example of how much warning time we have for an object with H = 27.0 Andrea The Catalina...
Andrea Boattini
boattini@... Send Email
Jan 11, 2010
9:20 pm

Indeed.....visitors frequently ask me if I worry about the NEOs that I measure; my response: "I don't worry about those that we keep up with....I am more...
P. Clay Sherrod
drclay2002 Offline Send Email
Jan 11, 2010
9:23 pm

Here is one of my favorites that I use to explain the plans we have in place in case of pending impact. ... From: "Alan Harris" <awharris@...> To:...
P. Clay Sherrod
drclay2002 Offline Send Email
Jan 11, 2010
10:39 pm

Hello all, here is my page with local data but also a video animation of 2010 AL30 near Earth fly by. http://www.dangl.at/2010/2010_al30/2010_al30.htm ...
Gerhard Dangl
gerhard.dangl Offline Send Email
Jan 12, 2010
2:17 am

Hi Andrea, "...Since this object is almost on an impact trajectory, this is a great example of how much warning time we have for an object with H = 27..." ...
Bill J Gray
feliks314159 Offline Send Email
Jan 12, 2010
1:45 pm

A matter of curiosity. With a little less than 24hrs to closest approach, what is the uncertainty in the orbit as it would translate to an impact point. For...
Dave Herald
dave_herald Offline Send Email
Jan 12, 2010
3:56 pm

Hi Dave, "...A matter of curiosity. With a little less than 24hrs to closest approach, what is the uncertainty in the orbit as it would translate to an impact...
Bill J Gray
feliks314159 Offline Send Email
Jan 12, 2010
9:40 pm

Hi Bill, Thanks for your note. The first problem of this matter is that I was the only one doing follow-up on that night; in fact, the next observations came...
Andrea Boattini
boattini@... Send Email
Jan 12, 2010
4:45 pm

Bill, I know of a large number of meteorite hunters and collectors that would be rushing towards the impact zone for an object this size and smaller. I'm not...
Richard Kowalski
mpmlowner Offline Send Email
Jan 12, 2010
5:30 pm

... Sorry I meant 60 foot Richard...
Richard Kowalski
mpmlowner Offline Send Email
Jan 12, 2010
5:32 pm

Unfortunately most meteorite hunters are not equipped with deep sea diving equipment. And this is what they would need most likely. But it is nice to have...
Alain
geocroiseur Offline Send Email
Jan 12, 2010
7:43 pm

There are over 260 versions of this story posted now on news http://news.google.com/news/more?pz=1&ned=us&ncl=dtiEdXna8okR_BM8wYkIYI2IWV09M Just read one on...
Charles Bell
charbell... Offline Send Email
Jan 12, 2010
9:58 pm

And also a great example of most objects coming from the solar or anti-solar (opposition) direction. This one is only 15 deg off of the exact anti-solar...
Alan Harris
harrisaw Offline Send Email
Jan 11, 2010
9:44 pm

Richard, Cheers and good to hear of this! Is there a place for us newcomers to find the ephemeris for this object? Those of us that can do video astrometry...
Scotty Degenhardt
scotty.degen... Offline Send Email
Jan 12, 2010
12:06 am

try our NEODyS site, at either http://newton.dm.unipi.it/neodys/ or http://unicorn.eis.uva.es/neodys/ just type 2010AL30 in the small "Go to NEA" slot on the...
Andrea Milani
milani@... Send Email
Jan 12, 2010
8:53 am

There are new ephemerides of the asteroid 2010AL30 at NEODyS site: http://newton.dm.unipi.it/neodys/index.php?pc=1.1.3.0&n=2010AL30 from date of orbit...
wlodarczyk_i Offline Send Email Jan 12, 2010
8:55 pm

I managed to get a few images of 2010 AL30 tonight which measured as follows: K10A30L C2010 01 12.27905 07 39 05.14 +09 31 49.8 17.0 718 ...
Patrick Wiggins
scubaskydive... Offline Send Email
Jan 12, 2010
8:11 am

... Entirely possible, even expected, but then again, there's Murphy's law.... I hope we can get enough photometry to verify the super-fast rotation. I'm...
Alan Harris
harrisaw Offline Send Email
Jan 12, 2010
9:05 am

Have been looking everywhere I can think of (CFA/MPC, google, etc) but can't find the answer to who/where discovered the asteroid? Any details about the...
Scibuff
scibuffcom Offline Send Email
Jan 12, 2010
1:06 pm

... 2010 AL30 has been discovered by Linear survey on Jan. 10, 2010 704 Lincoln Laboratory ETS, New Mexico. Observers M. Blythe, G. Spitz, R. Brungard, J....
walcom77 Offline Send Email Jan 12, 2010
1:12 pm

... MPEC 2010-A59 shows LINEAR as the discoverer (code 704)....
Dave Tholen
tholen@... Send Email
Jan 12, 2010
1:22 pm

It is worth noting however, even if 2010 AL30 did hit Earth, it would most likely explode high in the atmosphere (with the energy of a small nuclear bomb),...
Terrence R. Redding, ...
w6lmj Offline Send Email
Jan 12, 2010
4:00 pm

... Well, not quite, more like once per 20 years. But in perspective, objects this size pass this close to the Earth (~100,000 km) about once a month, so the...
Alan Harris
harrisaw Offline Send Email
Jan 12, 2010
9:49 pm

... I suspect the frequency is a bit higher since we spot one about once a month and it takes about 2x to 3x the typical length of apparition for us to cover...
Richard Kowalski
mpmlowner Offline Send Email
Jan 12, 2010
9:52 pm

I don't think you spot one that big that gets that close once per month. Most of the ones that size that you spot monthly stay out around the distance you...
Alan Harris
harrisaw Offline Send Email
Jan 13, 2010
12:35 am

A colleague of mine working in our mission analysis section did a quick study on whether this could be the old Fregat upper stage we used to bring Venus...
Detlef.Koschny@...
dkoschny Offline Send Email
Jan 13, 2010
9:13 am

I disagree; with this assumed diameter and velocity it would certainly at least partially remain intact for impact. Not only that, but concussion waves if it...
P. Clay Sherrod
drclay2002 Offline Send Email
Jan 12, 2010
4:27 pm
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