Observed CS, C³⁴S, C³³ S, and NS spectra (in T_B scale, see Table 1) extracted at the emission peak: α₂₀₀₀ = 03^h29^m03.^s75, δ₂₀₀₀ = +31°16′03.′′8. Transitions and corresponding upper level energies are reported. The vertical dashed line stands for the ambient LSR velocity (+8.6 km s⁻¹, Chen et al. 2009). The C³³S(2–1) line consists of six hyperfine components with Sμ² in the 0.5–12.2 D² range (Bogey et al. 1981; Lovas 2004; Müller et al. 2005) spread on a 9 MHz frequency interval. The vertical red lines (in scales according to their Sμ²) indicated their relative offset in velocity scale with respect to the brightest F = 5/2–3/2 line. The NS 9/2–7/2 Ω = 1/2 line consists of three hyperfine components (Lee et al. 1995) associated with Sμ² in the 10.9–17.4 D² range spread on a 0.6 MHz frequency interval. The vertical red lines (in scales according to their Sμ²) indicated their relative offset in velocity scale with respect to the brightest F = 11/2–9/2 line (see Table 1).