Notes. The crests 1 to 4 trace the ridge. The crests 5 to 14 correspond to the sub-filaments, for which in and out values are given (see Figs. 10 and 13). The values given in this table are derived from BISTRO observations at a spatial resolution of 14′′. The row “1 to 4” corresponds to the full length of the ridge combining the crests from 1 to 4. The last two rows “median in” and “median out”give the median values measured toward the sub-filaments “in” and “out” parts, respectively (see Fig. 13). Columns 3, 4, 6, 8, 10, and 11 give the median and their median absolute deviation per crests. These values are calculated along the ridge crests (for crests 1 to 4) and toward one-third of the “in” and “out” parts of the sub-filaments (cf., Sect. 4.2). Columns 5, 7, and 9 give the statistical uncertainties. Columns: (1) Crest number. (2) Crest length. (3) Stokes I. (4) Polarized intensity. (6) Polarization fraction. (8) POS B-field orientation, . To avoid artifacts introduced by the discontinuity in the distribution of angles around 0° and 180°, which is the B-field orientation ambiguity inherent in polarimetric observations, we estimated two values of , one in the range [0°, 180°] and another one in the range [−90°, 90°]. We then selected the smallest value of and the corresponding median value (mapped back to the [0°, 180°] range when needed). (10) Orientation of the filament crest, θ_fil, measured on the Stokes I map. (11) Difference between the orientation of the POS B-field angle and the filament crest .