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To: EveningStar

I confess I don’t know much about orbital mechanics, but I do know that you can’t send a spacecraft from the earth to the moon without several course corrections. So my question would be with all the gravitational influences acting on that asteroid, how do we know its trajectory with any degree of certainty over that time period?


15 posted on 10/11/2013 2:52:28 PM PDT by Tallguy (Hunkered down in Pennsylvania)
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To: Tallguy

Al Gore said so?


26 posted on 10/11/2013 2:57:06 PM PDT by SgtHooper (The last thing I want to do is hurt you. But it's still on the list.)
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To: Tallguy
how do we know its trajectory with any degree of certainty over that time period

they asked the mayans

35 posted on 10/11/2013 2:59:20 PM PDT by bigheadfred (some heads are gonna roll roll)
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To: Tallguy

Essentially.

This represents current orbital path with as high an accuracy as they can get. Though most things in space are predictable enough for estimates of location. Likely it’ll be off a bit.

Reasonably, if current western civ continues on its path, we’ll be backwater nations dealing with basic infrastructure issues and won’t be able to deal with it. The Asians, notably Chinese and Russians will probably be the ones to rescue the world. So far they’re the only ones interested in running a country that doesn’t try and destroy itself.


45 posted on 10/11/2013 3:07:22 PM PDT by Bogey78O (We had a good run. Coulda been great still.)
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To: Tallguy

The guys who do Global Warming predictions figured it out in their spare time.


58 posted on 10/11/2013 3:14:44 PM PDT by DuncanWaring (The Lord uses the good ones; the bad ones use the Lord.)
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To: Tallguy

The comparison of the asteroid’s orbital path to that of the Lunar bound spaecraft is false. The spaecraft needs to do course corrections for a variety of reasons unrelated to the ability to accurately predict orbital paths of a relatively more inert body such as an asteroid. The Earth and the field of its significant gravitational influence upon an asteroid are far far greater than the aiming points for cis-Lunar trajectory for a spacecraft.


101 posted on 10/11/2013 6:27:58 PM PDT by WhiskeyX ( provides a system for registering complaints about unfair broadcasters and the ability to request a)
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