Spectra extracted from different beams at the pointing position closest to UGC 00613. Left: Spectra of the (previously known) H I absorption system UGC 00613. The top, middle, and bottom sub-panels show the detection from Beam 10, Beam 4, and Beam 13, respectively. The left column shows the raw data, and the right column shows the baseline-removed data. The solid red lines in the left column indicate the baselines estimated using medfilt. The solid red lines in the right column depict the best template modelling the H I absorption profile. The vertical orange dashed lines show the central channel position of the template. The S/Ns of the absorption profiles are given as the titles of the sub-figures in the right column. Right: Same as the left sub-panels, but there is no precise detection for neighbouring Beam 3, Beam 11, and Beam 14. The vertical orange dashed lines refer to the frequency position of UGC 00613.