P. Clay Sherrod Nov 6, 2009
----- Original Message -----
From: "Bill J Gray" <pluto@...>
To: <guide-user@yahoogroups.com>
Sent: Friday, November 06, 2009 9:50 AM
Subject: Re: [guide-user] Charon
> Hi Chris,
>
> "...For some reason Charon believed the sun was up and that the
> image was taken here (642)."
>
> If that's what it says in Charon's settings menu, then that's the MPC
> code the program will use. Unfortunately, it can't get the MPC code from
> the FITS header. (Not in any reliable or standard way, that is. I'm sure
> the MPC code is sometimes stored in FITS headers, but I'd be gobsmacked
> if any two programs stored them in the same way. Setting it through Charon
> is more reliable.)
>
> I'm pleased to hear from some folks using the program. Although I've
> done very little except maintenance on it for some years, I was tempted to
> make a major change when John Greaves pointed out this paper to me:
>
> http://arxiv.org/abs/0910.2233
>
> The program described in the article loads up an image and
> automatically figures out where that image is in the sky, given
> a pretty rough estimate of the image scale. I'd considered some
> similar tricks long ago, but didn't think it would run very
> quickly. Seems it's actually quite fast, and I can see several
> ways in which it could be both simplified and sped up. The result
> would be that Charon could be much more reliable and the need for
> user control would mostly go away: the program could run in an
> almost totally automated fashion. But it would be a _big_ project;
> I doubt I'll do it any time soon!
>
> -- Bill
>
>
>
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