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Herschel gets close visit from little buddy

Kristin Lewotsky
11/10/2011 08:01 AM EST

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Kristin Lewotsky
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re: Herschel gets close visit from little buddy
Kristin Lewotsky   11/15/2011 1:28:14 AM
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Whoops, typos from my always creative speech-recognition software. The trajectory of 2005 YU55 ran inside the moon's orbit. "The asteroid was positioned too close to the sun AT closest approach to permit successful observations." That is probably better restated as YU55's angular position relative to the sun at closest approach to Herschel led to detector saturation, so the team elected to wait until it had traveled further along its track. "Previously, the closest object observed by Herschel WAS 16,000,000 km distant." And yes, you're correct, there's only L2 point -- I was recalling the L4 and L5 Lagrangians -- clearly, too much time has passed since my last planetary dynamics class. My apologies for any confusion.

ljmayes
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re: Herschel gets close visit from little buddy
ljmayes   11/14/2011 2:14:48 PM
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What do: "inside the lunar orbit Earth" "The asteroid was positioned too close to the sun had closest approach to permit successful observations." "Previously, the closest object observed by Herschel by 16,000,000 km distant." mean? BTW - there is only ONE L2 point.

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