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" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Meteorite Mailing List" <meteorite-list@meteoritecentral.com>; "Ron
Baalke" <[EMAIL PROTECTED]>
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: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "Meteorite Mailing List" <meteorite-list@meteoritecentral.com>; "Ron
Baalke" <[EMAIL PROTECTED]>
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 <[EMAIL PROTECTED]>
Date: November 8, 2007 5:15:19 PM MST
To: "Peter Birtwhistle" <[EMAIL PROTECTED]>
Cc: [EMAIL PROTECTED]
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: [EMAIL PROTECTED]
*******************************************************************
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