Total CO(1–0), CO(2–1), and [C I](1–0) spectra extracted from a ﹩12^{\prime\prime} \times 6^{\prime\prime} ﹩-size rectangular region centered at R.A. = 16:52:58.900, decl. = 02.24.03.950, and displayed in Figure 1(a). The rms values per spectral channel are 3.2 mJy (δv = 53 km s⁻¹), 17 mJy (δv = 13 km s⁻¹), and 78 mJy (δv = 49 km s⁻¹), respectively, for CO(1–0), CO(2–1), and [C I](1–0). The spectra were simultaneously fitted using two Gaussian functions (white dashed curves) tied to have the same velocity and width in all three transitions. The best fit results are reported in Table 1. The source-averaged r₂₁ and ﹩{\alpha }_{\mathrm{CO}}﹩ calculated from this fit are listed in Table 2.