it sounds like you need to update your asteroid MPC positions; this object is one of our
targets and it was only a few arcseconds (about 14" as I remember) from predicted with the
latest neatod.dat data. You can use this in Guide and change the name of it to
"mpcorb.dat" (no quotes); keep the original file as neatod.dat and make a second copy of
that file and rename to mpcorb.dat and place both in the Guide folder. This will allow
you to acquire the position accurately for GO TO, and will also allow you to measure it
accurately with the most up to date data on Charon.

Note that the neatod.dat file is updated daily about 2:30 a.m. EDT, and is only 1.17 meg
at present and contains all critical list asteroids that need attention....it sure beats
downloading the entire MPC list every day.

We update every afternoon before the observatories open up.

Dr. Clay
_____
Arkansas Sky Observatories
MPC H45 - Petit Jean Mountain South
MPC H41 - Petit Jean Mountain
MPC H43 - Conway West
http://www.arksky.org/

----- Original Message -----
From: "Gerhard Dangl" <gerhard@...>
To: <guide-user@yahoogroups.com>
Sent: Wednesday, March 18, 2009 4:48 PM
Subject: Re: [guide-user] Tonights asteroid pass


> Hello all,
>
> yesterday on 2009-03-17 I made some images from approaching asteroid 2009
> DO111. The positions shown in my Guide8 were about 45 arcmin away from the
> real position.
>
> But if I used the positions of the ephemerides table calculated online on
> http://www.cfa.harvard.edu/iau/MPEph/MPEph.html
> the position was within few arcsec of real position.
>
> Is there a way in Guide8 to get current positions with higher accuracy?
>
> Regards
> Gerhard
> www.dangl.at
>
>
> ----- Original Message -----
> From: "P. Clay Sherrod" <drclay@...>
> To: <guide-user@yahoogroups.com>
> Sent: Wednesday, March 18, 2009 12:30 AM
> Subject: Re: [guide-user] Tonights asteroid pass
>
>
>> Simply go to:
>> http://www.cfa.harvard.edu/iau/MPEph/MPEph.html
>> and type in the asteroid designation and make sure you get the Guide
>> listing.
>>
>> Once done, open the file presented in a .txt format and SAVE that file to
>> some folder that
>> you can find.
>>
>> Once done, open Guide and go to EXTRAs/Add MPC Comets, etc.....and open
>> the file into that
>> window....click on the last line on that new window to put the file into
>> the Comets
>> folder.
>>
>> The one line Guide listing (for my observatory, H45) is:
>> 2009 FH 18.0000 6 2009 39.7921
>> 0.975346
>> 0.337237 0.6785 24.0275 176.5411 2000.0 26.6 0.15 A MPEC
>> 2009-F13
>> **watch the line wrap!**
>>
>> Note that if you want to use the astrometric program Charon to locate and
>> measure the
>> asteroid that has just been entered, you must use a "c" (comet) entry
>> rather than the "a"
>> entry as you normally would.
>>
>> Best of luck....
>>
>> Dr. Clay
>> _____
>> Arkansas Sky Observatories
>> MPC H45 - Petit Jean Mountain South
>> MPC H41 - Petit Jean Mountain
>> MPC H43 - Conway West
>> http://www.arksky.org/
>
>
>
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