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@...
>> *******************************************************************
>>
>>
>
>
>
>
> ------------------------------------
>
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