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Table 2

Observed spectral line parameters of CH3CCH.

Transition Frequency (GHz) Eup (K) Tpeak (K) rms (K)
J, K = 5, 4 → 4, 4 85.4312 127.9 <3 × rms
J, K = 5, 3 → 4, 3 85.4425 77.3 0.137
J, K = 5, 2 → 4, 2 85.4507 41.2 0.204 0.026
J, K = 5, 1 → 4, 1 85.4556 19.5 0.464
J, K = 5, 0 → 4, 0 85.4572 12.3 0.630

J, K = 6, 5 → 5, 5 102.4991 197.8 <3 × rms 0.030
J, K = 6, 4 → 5, 4 102.5165 132.8 <3 × rms
J, K = 6, 3 → 5, 3 102.5303 82.3 0.162
J, K = 6, 2 → 5, 2 102.5401 46.1 0.298
J, K = 6, 1 → 5, 1 102.5460 24.5 0.696
J, K = 6, 0 → 5, 0 102.5479 17.2 0.796

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