[ExI] Mining the Sky SL Talk I gave today

[samantha]

samantha wrote:
> spike wrote:
>>  
>>
>>> ...On Behalf Of samantha
>> ...
>>> Subject: Re: [ExI] Mining the Sky SL Talk I gave today
>>>
>>> spike wrote:
>>>> ...Getting humans waaaay the hell out to 2.6 AU is pretty much out 
>>>> of the question for now...
>>
>>> I am talking about ATENS which are around 1 AU.  So where does 2.6 
>>> AU come from? - samantha
>>
>> It occurred to me that those close-in asteroids must be out of the 
>> plane of
>> the ecliptic.  Otherwise the gravitational influence of the other 
>> close-in
>> planets would have messed up the orbit by now.
>
> They do not last long in those orbits true enough.  And how they are 
> replenished is in part an open mystery.  But in the meantime there are 
> enough of them of sufficient size to be worth exploiting.  Also some 
> of the Amors come close enough to exploit during parts of their orbit. 
> Most are not that far out of plane.  Many are in plane.
>
>
>> Samantha do you have a reference which gives the Atens' angle to the 
>> plane?
>> Did you have in mind sending actual proles out there?
>>
>
>
> No, only reports.  I will look for one. There have been probes 
> exploring near earth and other asteroids.
>
> - samantha
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Here is one.  JPL has a nice queryable database one layer in from this 
link.  Note that they lisst 1116 hazardous asteroids.  So we know at 
least that many come close enough to exploit.  :)

Orbit Diagrams
<http://neo.jpl.nasa.gov/orbits/>
I used the ugly query here:
my query 
<http://ssd.jpl.nasa.gov/sbdb_query.cgi?obj_group=neo;obj_kind=ast;obj_numbered=all;ast_orbit_class=ATE;ast_orbit_class=AMO;OBJ_field=0;ORB_field=0;c1_group=ORB;c1_item=Bt;c1_op=%3C%3D;c1_value=0.1;table_format=HTML;max_rows=10;format_option=comp;query=Generate%20Table;c_fields=AaAbAhApBgBhBiBnBrBt;c_sort=BtA;.cgifields=format_option;.cgifields=ast_orbit_class;.cgifields=table_format;.cgifields=obj_kind;.cgifields=obj_group;.cgifields=obj_numbered;.cgifields=com_orbit_class&page=17>


also look at pretty diagram on

Near Earth Objects Map <http://szyzyg.arm.ac.uk/%7Espm/>

and

Asteroid Orbital Elements Database 
<ftp://ftp.lowell.edu/pub/elgb/astorb.html>


- samantha

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