Re: How to match to catalog using Mike Gutzwiller's star.exe?

["John Phillips" <jdp@indy.net>]

Thanks Mike, I was able to match to the catalog also using 40 for the
setting "Number of stars to match."  I can continue experimenting with the
program now.  I can also make successful matches with the other published
files as well.  I appreciate you taking time to help me.

John Phillips
jdp@indy.net

-----Original Message-----
From: mgutzwiller@lanvision.com <mgutzwiller@lanvision.com>
To: tass@wwa.com <tass@wwa.com>
Date: Monday, March 01, 1999 2:16 PM
Subject: RE: How to match to catalog using Mike Gutzwiller's star.exe?


>I took a look at this image myself and also got the match failure with the
>default settings for star. The cure was to change the setting or "Number of
>stars to match" to 40. This image was deep in the Milky Way (RA = 102 -
>105) which probably confused the match algorithm.
>
>As for dark and flat vectors I used Tom's dark image (d0500244.fts) and my
>dark program to create the dark vector and the image itself to generate a
>flat vector with my flat program.
>
>
>Thanks,
>
>Mike Gutzwiller
>
>-----Original Message-----
>From: John Phillips [mailto:jdp@indy.net]
>Sent: Sunday, February 28, 1999 6:49 AM
>To: tass@wwa.com
>Subject: How to match to catalog using Mike Gutzwiller's star.exe?
>
>
>I have been trying to reproduce the published results of analysis for the
>Mark III image g0493669.fts using Mike Gutzwiller's star.exe for windows
>98. I have written a simple little program to extract a dark and flat
>vector from the image since these haven't been published. (Dark is the
>minimum from each column and flat is the average from each column. Dark
>seems OK, flat is problematic). I am using the (recommended) tycho.cat
>catalog file. Everything seems to go well, except that in the output file
>(x0a_3669.fts) I see the message "match to catalog failed, using Ra and Dec
>from fits header."
>
>I have experimented with the Sao and tyc_good catalog files, but I think
I'm
>on the wrong track there, I just get the same results.
>
>Does anyone have any helpful hints?
>
>John Phillips
>jdp@indy.net
>
>

smime.p7s