[meteorite-list] Rosetta gravity assist flyby

From: Chris Steyaert <csteyaert_at_meteoritecentral.com>
Date: Fri, 09 Nov 2007 23:13:48 +0100
Message-ID: <6.2.5.6.2.20071109231334.04875eb0_at_gmail.com>

And the awakening:

         http://www.cfa.harvard.edu/mpec/K07/K07V70.html


         Chris


At 19:35 09/11/2007, mexicodoug wrote:
>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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>>>>as the source of the information.
>>>
>>>
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>>
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Received on Fri 09 Nov 2007 05:13:48 PM PST