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Re: Asteroid 3753 (1986 TO)

Thanks Ron,

I know where the confusion came in.  It was in your 3/1/99 post called A
Chip Off the Old Moon and I linked that as being the same with Bernd's
3/17/99 post which actually referred to Asteroid 3753 in Astronomy as of
3/98.  Clearly a year apart.   Well, I won't pester you anymore today:-)  I
might have some questions about the Chip tomorrow though:-)

Thanks again,
Julia

-----Original Message-----
From: Ron Baalke <BAALKE@kelvin.jpl.nasa.gov>
To: meteorite-list@meteoritecentral.com
<meteorite-list@meteoritecentral.com>
Date: Monday, March 22, 1999 7:23 PM
Subject: Re: Asteroid 3753 (1986 TO)


|>According to this article , the asteroid's peculiar horseshoe orbit is
based
|>upon the very interactions it has with the Earth/Moon system and the Sun.
|>I concluded that these interactions were based on gravitational influences
|>at given positions of the four objects stated in the report
|
|It does, but this is not called shepherding.  It is called orbital
|resonance.  Neptune and Pluto are in a 3:2 resonance, and because of this
|resonance will never get close to each other.  Asteroid 3753 and Earth are
in
|a resonance, which will keep them from colliding with eath other.
|
|>Further, I used the term Shepherd as correlating the existence of this
|>asteroid as being a possible reminent of planetary rings around the Earth.
|
|Since the asteroid is not in orbit around the Earth, it cannot be a
shepherd
|satellite.  There is no evidence the satellite was ever in Earth orbit.
|In fact, Asteroid 3753's orbit does not intersect Earth/Moon's orbit.
|
|>Do you see that this asteroid is suspiciously (possibly) a
|>reminent of a ring around Earth?  Correct me where I am wrong:-)
|
|IF the asteroid was in Earth orbit, and IF there was an Earth ring, then
|it would be a shepherd satellite.   Unfortunately, their orbits
|don't intersect, so it does not look like the asteroid was ever in
|Earth orbit.  There is no evidence linking the asteroid to an Earth ring.
|
|Ron Baalke
|
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