Single-dish spectra of the CO rotational emission lines in PLCK_G244.8+54.9 observed with EMIR. The continuum-subtracted and binned spectra were fitted with two Gaussian components using the CLASS package of GILDAS, by fixing the peak velocities to those measured on the CO(3–2) spectrum. The best-fit line profiles are plotted as red curves, with the individual spectral components overlaid in gray. Velocity offsets are defined relative to the best spectroscopic redshift z = 3.0054 ± 0.0001 presented in Table 1. The resulting line properties are listed in Table A.2 and EMIR spectra of other Planck’s dusty GEMS are shown in Appendix A.