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Table 1

Transitions covered by the instrumental setup.

Species Transition Frequency E L
(GHz) (K)

CH3CN J = 12–11, K = 0 220.7473 58.3
13CO J = 2–1 220.3987 5.3
SO J = 5–4 219.9494 24.4
HNCO J = 10–9, K = 0 219.7983 47.5
C18O J = 2–1 219.5604 5.3
SO2 J = 22–23, K = 7–6 219.2760 342.2
H2CO (32,1–22,0) 218.7601 57.6
H2CO (32,2–22,1) 218.4756 57.6
CH3OH J = 4–3, K = 2–1 E 218.4401 35.0
HC3N J = 24–23 218.3247 120.5
H2CO (30,3–20,2) 218.2222 10.5
SiO J = 5–4 217.1050 20.8

Notes. Column 1 lists the molecules; the transitions are described by the main quantum numbers in Col. 2; Cols. 3 and 4 give the rest frequencies and the lower state energies, respectively.

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