Sextractor

[Luís Filipe]

Hello,

I am trying to run astrometry but it produces a bad source detection with image2xy.

When i try to use the sextractor feature, it says that id does not find the default.param file, but I can't see the option to give that information.

Is it possible to run sextractor on its own and give the result catalog to astrometry? Using the x-collumn and y-column. 

Or how can i give the default.param location, like it is possible to give the default.sex.

Thanks,

Luís

[Dustin Lang]

In your se.conf file, if you do not set PARAMETERS_NAME, then the default is "default.param".  This is baked into source-extractor.  So if you want to set the name of this file, you must do so in your se.conf file, eg

PARAMETERS_NAME  my.param

If that doesn't work -- what command line are you running, and what does your source extractor config file look like?

If you just use

solve-field --use-source-extractor  image.jpg

then it should work.

If you use

solve-field --source-extractor-config se.conf   image.jpg

then if your se.conf lists a PARAMETERS_NAME file, you must create that file.

For example, if you use just --use-source-extractor (and turn on -v logging), you will see that it creates a temp file containing the parameters,

$ cat /tmp/tmp.param.j6syFW
X_IMAGE
Y_IMAGE
MAG_AUTO

and runs source extractor like

  source-extractor -PARAMETERS_NAME /tmp/tmp.param.j6syFW -VERBOSE_TYPE FULL -FILTER_NAME /tmp/tmp.filter.XQnIDX -CATALOG_TYPE FITS_1.0 -CATALOG_NAME /tmp/tmp.xyls.5Ezi4Y /tmp/tmp.fits.QD757X

cheers,

dustin

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