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 msccmatch problem
   
joshw
 06/02/2006 01:29AM (Read 3348 times)  
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Junior

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Registered: 12/09/2005
Posts: 26
Hi,I'm running into a problem using msccmatch in mscred. I'm running it in non-interactive mode on a long list of object files. From time to time it stops with an error (see below). When restarted (after removing the sucessfully completed files from the input list), it usually continues happily for a while before stopping with an error again. In this way I am able to slowly work my way through the list of files, but it takes much longer with all the restarts. Do you know what might be causing this error?I've pasted the output of two sucessive runs of msccmatch below. The first failed on obj402.fits, but the subsequent run suceeded.thanks,
Josh[code:1:e565e4f857]
ms> msccmatch @list_obj2 coords="!mscgetcat $I $C magmax=20" nsearch=60 search=40 rsearch=1.0 nfit=200 rms=1.0 maxshift=5 verbose+ listcoords- reject=3 int-
MSCCMATCH:
obj401.fits:
2214 input coordinates
1170/2214 coordinates out of bounds
150/1044 coordinates masked
search using up to 60 objects:
search found offsets of (1, 1) pixels and rotation 0.01 degrees
2214 input coordinates
1170/2214 coordinates out of bounds
95/1044 coordinates masked
5/949 not centroided
Fit coordinates:
input number of coordinates = 944
tangent point shift = (-0.01, 0.01) arcsec
fractional scale change = (1.000, 1.000)
axis rotation = (-0.001, 0.002) degrees
rms = (0.621, 0.655) arcsec
Coordinate system updated.
obj402.fits:
ERROR: may not convert string to other types
msccmatch (input=@list_obj2, coords=!mscgetcat $I $C magmax=20, verbose=yes, nsearch=60, search=40., rsearch=1., maxshift=5., listcoords=no, nfit=200, rms=1., reject=3., interactive=no)
msccmatch (input=@list_obj2, coords=!mscgetcat $I $C magmax=20, verbose=yes, nsearch=60, search=40., rsearch=1., maxshift=5., listcoords=no, nfit=200, rms=1., reject=3., interactive=no)
ms> flpr
ms> flpr
ms> msccmatch @list_obj2 coords="!mscgetcat $I $C magmax=20" nsearch=60 search=40 rsearch=1.0 nfit=200 rms=1.0 maxshift=5 verbose+ listcoords- reject=3 int-
MSCCMATCH:
obj402.fits:
1895 input coordinates
1002/1895 coordinates out of bounds
123/893 coordinates masked
search using up to 60 objects:
search found offsets of (135, 3) pixels and rotation 0.14 degrees
1895 input coordinates
1013/1895 coordinates out of bounds
151/882 coordinates masked
search using up to 60 objects:
search found offsets of (8, -1) pixels and rotation 0.12 degrees
1895 input coordinates
1010/1895 coordinates out of bounds
119/885 coordinates masked
7/766 not centroided
Fit coordinates:
input number of coordinates = 759
tangent point shift = (0.28, 37.66) arcsec
fractional scale change = (0.999, 0.999)
axis rotation = (0.249, 0.276) degrees
rms = (0.670, 0.703) arcsec
Coordinate system updated.
[/code:1:e565e4f857]

 
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valdes
 06/02/2006 01:29AM  
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Registered: 11/11/2005
Posts: 728
Hi Josh,I can't tell what is wrong without reproducing this. My guess is that something is happening when getting the coordinates by executing a command. What might work better for you is to turn you single command over a list of files into a script loop where in each loop one image is done at a time. In this loop you could call mscgetcat separately and pass the file to msccmatch or may just doing
what you are doing one exposure at a time with a flpr would be a convenient workaround. An example of what the loop would look like is[code:1:dc97b88c9e]
list = "list_obj2"
while (fscan (list, s1) != EOF) {
msccmatch (s1, coords="!mscgetcat $I $C magmax=20", nsearch=60,
search=40, rsearch=1.0, nfit=200, rms=1.0, maxshift=5, verbose+,
listcoords-, reject=3, int-)
flpr
}
list = ""
[/code:1:dc97b88c9e]Frank Valdes

 
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