Spectra of spw1 towards core 9 of the AG318.9477−00.1960 clump. The black histogram and its grey shadow are the observational spectrum, and the red curve indicates the LTE fit after taking into account the contribution of all the species (see Table 3 and its complete version in Appendix D.1). The horizontal dashed green line indicates the 5σ ≈ 1.35 K level, with σ being the noise (σ ∼ 0.28 K). Only transitions contributing at ≥5σ are labelled. The vertical dashed black lines indicate the position where ν was converged. U labels indicate unidentified transitions.