[meteorite-list] Rosetta gravity assist flyby

From: mexicodoug <mexicodoug_at_meteoritecentral.com>
Date: Fri, 9 Nov 2007 12:35:28 -0600
Message-ID: <004601c822ff$4f15e920$4001a8c0_at_MICASA>

Someone has a sense of humour, especially the flying couch comment !

So, will closest approach be 20:57, 21:04, 21:13 UT, or undetermined, and
who will get the view? I think Rosetta won't be rising until 21:15 where
I'm at in southern North America, and at close approach will be moving at
around 3 degrees (6 full moons) per minute. That is a little
challenging.....especially if the spacecraft is not oriented to reflect much
back.

Thanks kindly,
Doug


----- Original Message -----
From: "Spaceguard" <mail at spaceguarduk.com>
To: <lebofsky at lpl.arizona.edu>
Cc: "Meteorite Mailing List" <meteorite-list at meteoritecentral.com>; "Ron
Baalke" <baalke at zagami.jpl.nasa.gov>
Sent: Friday, November 09, 2007 11:35 AM
Subject: Re: [meteorite-list] Did a Collision Cause
Comet17P/Holmes'MysteriousOutburst?


> Yep. It's the Rosetta spacecraft making its planned gravity assist fly-by
> of the Earth.
>
> Jay Tate
> The Spaceguard Centre
>
> ----- Original Message -----
> From: <lebofsky at lpl.arizona.edu>
> To: <lebofsky at lpl.arizona.edu>
> Cc: "Meteorite Mailing List" <meteorite-list at meteoritecentral.com>; "Ron
> Baalke" <baalke at zagami.jpl.nasa.gov>
> Sent: Friday, November 09, 2007 5:24 PM
> Subject: Re: [meteorite-list] Did a Collision Cause Comet
> 17P/Holmes'MysteriousOutburst?
>
>
>> Hi List:
>>
>> I am trying this again since my previouys forward did not appear to go
>> through.
>>
>> On November 13, this newly-discovered asteroid (only about 20 meters
>> diameter) will pass within 2 Earth radii of the CENTER of the Earth (that
>> is close). It will be 9th magnitude (about 50-100 times too faint to see
>> with the naked eye), but show be observable with a small telescope (if it
>> is night where you are when it comes by and you know were to look).
>>
>> Go to the cfa.harvard site for coordiantes, etc. I can interpret columns
>> if you are interested.
>>
>> I am sure there will be more about this in the coming days.
>>
>> LArry
>>
>> Begin forwarded message:
>>
>>> From: Alan W Harris <awharris at spacescience.org>
>>> Date: November 8, 2007 5:15:19 PM MST
>>> To: "Peter Birtwhistle" <peter at birtwhi.demon.co.uk>
>>> Cc: mpml at yahoogroups.com
>>> Subject: Re: {MPML} 2007 VN84 incoming
>>>
>>> 2007 VN84 is significant in that it not only comes closer, it is much
>>> bigger, around 20 m in diameter, compared to 2004 FU162 only about
>>> 1/3 that
>>> size. Based on our recent population estimates, we expect an object
>>> the
>>> size of 2004 FU162 to pass within a couple Earth radii about once a
>>> year,
>>> and to actually impact (actually, blow up in the upper atmosphere)
>>> about
>>> once in five years, so the only thing unusual about 2004 FU162 is
>>> that we
>>> saw it as it passed by. 2007 VN84, on the other hand, is so large
>>> that we
>>> expect omething that big to come as close as 2 radii only about
>>> once in 20
>>> years, so it is a remarkable event in itself, in addition to the
>>> fact that
>>> it was discovered and can be watched flying by. Congratulations to
>>> Richard
>>> Kowalski and the Catalina Sky Survey.
>>>
>>> Cheers,
>>>
>>> Alan
>>>
>>> P.S. I second his request and interest for a lightcurve, but it
>>> will be a
>>> real challeng on account of its rate of motion. Plenty bright
>>> enough, but
>>> really truckin'.
>>>
>>> At 03:57 PM 11/8/2007, Peter Birtwhistle wrote:
>>> >Take a look at MPEC 2007-V69 just announced...
>>> >
>>> >http://www.cfa.harvard.edu/mpec/K07/K07V69.html
>>> >
>>> >"The minimum distance from the geocenter is 0.000081 AU (1.89 Earth
>>> >radii) on Nov 13.844 UT"
>>> >
>>> >just beating the previous record close approach of 2004 FU162, but
>>> >this time we have 5 days lead time.
>>> >
>>> >Peter
>>
>>>
>>> *******************************************************************
>>> Alan W. Harris
>>> Senior Research Scientist
>>> Space Science Institute
>>> 4603 Orange Knoll Ave. Phone: 818-790-8291
>>> La Canada, CA 91011-3364 email: awharris at SpaceScience.org
>>> *******************************************************************
>>>
>>>
>>> __._,_.___
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>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>
>>> 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.
>>
>>
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>
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Received on Fri 09 Nov 2007 01:35:28 PM PST