/usr/share/eccodes/definitions/grib1/grid.192.78.3.9.table is in libeccodes-data 2.6.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | # FLAG TABLE 3.9, Numbering order of diamonds as seen from the corresponding pole
1 0 Clockwise orientation
1 1 Anti-clockwise (i.e., counter-clockwise) orientation
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