mpml : Message: Re: R: {MPML} NASA's Wise Mission Finds First Trojan Asteroid Sharing Earth's Orbit

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NASA's Wise Mission Finds First Trojan Asteroid Sharing Earth's Orbi

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Message #25855 of 26727 |

Re: R: {MPML} NASA's Wise Mission Finds First Trojan Asteroid Sharing Earth's Orbit

Just an update:

I keep the integration going, and I'm finding that the stability of this Trojan
does not last for long.
Around 12000 years from present, some clones step over the L3 point, switching
to a "horseshoe" path, and some are even captured on the opposite side, becoming
L5 trojans ...

Aldo Vitagliano

Thu Jul 28, 2011 1:10 pm

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Message #25855 of 26727 |

Expand Messages	Author	Sort by Date
July 27, 2011 Trent J. Perrotto Headquarters, Washington 202-358-0321 trent.j.perrotto@... Whitney Clavin Jet Propulsion Laboratory, Pasadena, Calif. ...	Ron Baalke baalke@...	Jul 27, 2011 9:27 pm
Hi, According to http://www.minorplanetcenter.net/iau/lists/Trojans.html 2010 TK7 is not included in the Troyan list. It is presently considered as of Apollo...	Jean-Claude MERLIN jcmerlin@...	Jul 27, 2011 9:46 pm
... Some of the "?" may be answered in the actual paper a version of which is freely available at http://www.astro.uwo.ca/~wiegert/2010TK7/2010TK7.pdf (no time...	dfischer@... skyweek	Jul 27, 2011 9:48 pm
From that paper there was a CFHT follow-up in April 2011 that greatly improve the orbital elements. Maybe they forgot to send the astrometry to the MPC? :-) ...	Luca Buzzi buzzi_luca	Jul 27, 2011 10:00 pm
... From this morning two obervations made on April 2, 2011, are reported by MPC (MPCOBS). I have redetermined the orbit, discarding only one obs (oct. 2,...	Aldo alvitagl	Jul 28, 2011 11:12 am
Just an update: I keep the integration going, and I'm finding that the stability of this Trojan does not last for long. Around 12000 years from present, some...	Aldo alvitagl	Jul 28, 2011 1:12 pm
Aldo, This is consistent with what I suggested yesterday regarding the precession of the perihelion longitude and the libration resonance. If you are tracking...	Alan Harris harrisaw	Jul 28, 2011 4:42 pm
... Mmm ... around 12000 years from now, the argument of perihelion of all the clones is in the range 130-140 degrees. On the other hand, approaches to Earth...	Aldo alvitagl	Jul 29, 2011 4:11 pm
... Seems that MPC has not all observations (or they don't publish all) ... 20101001 C51 0.9+ 0.5- 20101003 C51 1.2- 1.1+ 20101006 474 0.1+ 0.4+...	Matthias Busch asteroid7687	Jul 27, 2011 10:03 pm
... It's not a 30-day arc, though there's no easy way for you to know that....	Dave Tholen tholen@...	Jul 27, 2011 10:29 pm

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