/usr/share/sextractor/tophat_4.0_5x5.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 | CONV NORM
# 5x5 convolution mask of a top-hat PSF with diameter = 4.0 pixels.
0.000000 0.220000 0.480000 0.220000 0.000000
0.220000 0.990000 1.000000 0.990000 0.220000
0.480000 1.000000 1.000000 1.000000 0.480000
0.220000 0.990000 1.000000 0.990000 0.220000
0.000000 0.220000 0.480000 0.220000 0.000000
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