/usr/share/sextractor/mexhat_2.0_7x7.conv is in sextractor 2.4.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | CONV NORM
# 7x7 convolution mask of a mexican-hat for images with FWHM~2.0 pixels.
-0.000006 -0.000132 -0.000849 -0.001569 -0.000849 -0.000132 -0.000006
-0.000132 -0.002989 -0.017229 -0.028788 -0.017229 -0.002989 -0.000132
-0.000849 -0.017229 -0.042689 0.023455 -0.042689 -0.017229 -0.000849
-0.001569 -0.028788 0.023455 0.356183 0.023455 -0.028788 -0.001569
-0.000849 -0.017229 -0.042689 0.023455 -0.042689 -0.017229 -0.000849
-0.000132 -0.002989 -0.017229 -0.028788 -0.017229 -0.002989 -0.000132
-0.000006 -0.000132 -0.000849 -0.001569 -0.000849 -0.000132 -0.000006
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