.ast files

[Tom Droege <tdroege2@earthlink.net>]

Michael,

Rich Knowles and I are struggling with a pair of images.  The V image finds 
.ast files perfectly.  The I images will find only one or two, and juggling 
values in make_list.out might make one image convert and another disappear 
from the .ast list.  We only get one or two successful out of 56 with all 
56 V images successful.  I had this problem on DS20 7 and 8 and was able to 
fix it by modifying make_list.out.

BTW, on data set 20 disk 7,8 you might look at the star at RA 69.8875 Dec 
9.00471

OK, the thing special about this list is that it is taken at the equator 
and is thus dense.  The I images are not as sharp as the V images, so there 
may be a problem with stars running together.

What values do we fuss with to try to get .ast files?  Can you give us the 
values to change and some logic behind them?  Possibly we can talk Rich 
into working on any code that is necessary to help make the process run 
smoother.  How close do we have to be to get a match?  I thought that we 
could be off by a degree or so.  DS207,8 seemed to require a closer guess.

Tom





At 08:24 PM 3/30/02 -0500, you wrote:

>   I'm thinking.
>
>   Okay, here's the deal: the "photom" program only uses the .clt
>files as input.  I've just looked at the .clt files from my own
>run of Disks 20-7 and 20-8, and there are no values of magnitude
>larger than 23.  So, my runs don't produce those bogus magnitudes.
>
>   I am at the RIT Observatory tonight, using its 10-inch telescope
>to acquire lots and lots of images of asteroid 1107 Lictoria.
>I (and some students) hope to determine its rotational period.
>In between my trips to the dome, I'll try to work on the mystery
>of the big offsets.
>
>                                        Michael