Rotational temperature profiles to the south (S) and west (W), where temperatures for all COMs are taken from the linear fit in the population diagrams using setups 4-5, except for ¹³CH₃OH and NH₂CHO, for which setups 1-3 have to be used (encircled symbols). Solid lines show the fit including all positions up to N1W4 (except for CH₃OCHO and C₂H₅CN) to the west and up to N1S4 to the south while dashed lines indicate the fit using only positions beyond 1″ (CH₃OH (W), CH₃CHO (W), CH₃NCO (W), C₂H₅CN (W), NH₂CHO) or 1.5″ (C₂H₅CN (S)) and up to N1S4 and N1W4, respectively. Additional crosses on the markers indicate positions for which the velocity offset changed from ≲2 to ~7 km s⁻¹. The shaded areas indicate the uncertainty on the fit using all positions. The fit results are shown in the respective legend and are summarised in Table 2.