[meteorite-list] Rosetta gravity assist flyby

From: Mark <mam602_at_meteoritecentral.com>
Date: Mon, 12 Nov 2007 19:54:27 -0700
Message-ID: <00c501c825a0$81fd8610$800101df_at_dce05032006>

As Maxwell Smart used to say, "Missed it by that much."

Mark M
----- Original Message -----
From: "mexicodoug" <mexicodoug at aol.com>
To: "Chris Steyaert" <csteyaert at gmail.com>
Cc: <meteorite-list at meteoritecentral.com>
Sent: Friday, November 09, 2007 3:44 PM
Subject: Re: [meteorite-list] Rosetta gravity assist flyby


> "This incident, along with previous NEOCP postings of the WMAP spacecraft,
> highlights the deplorable state of availability of positional information
> on
> distant artificial objects (whether in earth orbit or in solar orbit).
> The
> Distant Artificial Satellites Observations (DASO) page on the MPC website
> (http://www.cfa.harvard.edu/iau/SpaceJunk/SpaceJunk.html)"
>
> ...A.U. Tomatic
>
> Hi Listees,
>
> I just extracted this from the web page Chris kindly provided with the
> "awakening" :-) Good material for a sci-horror thriller....
>
> Looks like 1 AU Tomatic is the fall guy signing off. I don't think the
> ESA will bother to register Rosetta on their Space Junk webpage.... If
> there wasn't a sense of humor before, there certainly is one now.
> Statistically, one needs to strongly question whether someone knew what
> what happening and just wanted to see if they could pull it off. Seeing a
> spacecraft traveling 12 km/s still six and a half days away on a near
> collision course with Earth and not raising a scandal of what if's knowing
> it's size conveniently ... even if you knew exactly where to look this is
> all pretty incredible. It almost deserves a designation for that alone
> ... found it right where it was supposed to be at around the 20th
> magnitude or so? Can anyone locate the honorable Dr. AU Tomatic ? I 'm
> not getting my hopes up about how well "we" can detect these objects....it
> still smells like a prank to me.
>
> Keep Looking Up,
> Doug
>
>
>
> ----- Original Message -----
> From: "Chris Steyaert" <csteyaert at gmail.com>
> To: <meteorite-list at meteoritecentral.com>
> Sent: Friday, November 09, 2007 4:13 PM
> Subject: Re: [meteorite-list] Rosetta gravity assist flyby
>
>
>> 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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>>>>>>
>>>>>>Posts to this list or information found within may be freely used,
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>>>>>>as the source of the information.
>>>>>
>>>>>
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>>>>>
>>>>>
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>>>>>
>>>>
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Received on Mon 12 Nov 2007 09:54:27 PM PST