I have often downloaded the unusual asteroids file into Guide and renamed
it MPCORB.dat much the same way that Clay does with the neotod file. It
gives one a list of interesting asteroids in a much smaller file size.

Bob Elliott
762 Four Winds obs.




At 12:50 PM 7/24/2008 -0500, you wrote:

>Hi Bill,
>
>Thanks for explaining that to me, my knowledge base grew a little
>today!
>
>Dave
>
>--- In guide-user@yahoogroups.com, Bill J Gray <pluto@...> wrote:
>>
>> Hi Dave,
>>
>> (1922) Zulu and (1951) Lick aren't NEOs, so they won't appear
>> in any of the NEO files. (The MPC considers any object with a
>> perihelion distance of less than 1.3 AU to be an NEO. You can
>> argue with this on several counts -- some of those objects will
>> never get closer to us than Mars, etc. -- but it does make
>> for a simple definition.)
>>
>> Both objects did appear in the latest "Unusual Minor Planets"
>> MPEC (2008-O08). The MPC does provide an 'unusuals' file in
>> MPCORB format, but it has a very different list of asteroids.
>> As best I can tell, the only way to get those 'unusual' objects
>> is to grab the entire MPCORB file.
>>
>> -- Bill
>>
>
>
>
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