/usr/share/sextractor/mexhat_3.0_9x9.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 10 11 | CONV NORM
# 9x9 convolution mask of a mexican-hat for images with FWHM~3.0 pixels.
-0.000041 -0.000316 -0.001357 -0.003226 -0.004294 -0.003226 -0.001357 -0.000316 -0.000041
-0.000316 -0.002428 -0.010013 -0.022204 -0.028374 -0.022204 -0.010013 -0.002428 -0.000316
-0.001357 -0.010013 -0.035450 -0.054426 -0.050313 -0.054426 -0.035450 -0.010013 -0.001357
-0.003226 -0.022204 -0.054426 0.033057 0.164532 0.033057 -0.054426 -0.022204 -0.003226
-0.004294 -0.028374 -0.050313 0.164532 0.429860 0.164532 -0.050313 -0.028374 -0.004294
-0.003226 -0.022204 -0.054426 0.033057 0.164532 0.033057 -0.054426 -0.022204 -0.003226
-0.001357 -0.010013 -0.035450 -0.054426 -0.050313 -0.054426 -0.035450 -0.010013 -0.001357
-0.000316 -0.002428 -0.010013 -0.022204 -0.028374 -0.022204 -0.010013 -0.002428 -0.000316
-0.000041 -0.000316 -0.001357 -0.003226 -0.004294 -0.003226 -0.001357 -0.000316 -0.000041
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