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Table 2

Statistics of the data set for the global fit to vt = 0, 1, 2 torsional states of 13CH3CHO and CH313CHO isotopologs of acetaldehyde molecule.

13CH3CHO CH313CHO
Category1 #of transitions2 rms3 Category1 #of transitions2 rms3
vt = 0 A-type 2277 0.034MHz vt = 0 A-type 2246 0.033MHz
vt = 0 E-type 2439 0.031MHz vt = 0 E-type 2304 0.035MHz
vt = 1 A-type 1144 0.032MHz vt = 1 A-type 1062 0.031MHz
vt = 1 E-type 1118 0.029MHz vt = 1 E-type 1071 0.034MHz
vt = 2 A-type 331 0.033MHz vt = 2 A-type 296 0.033MHz
vt = 2 E-type 383 0.036MHz vt = 2 E-type 294 0.046MHz
Unc.4 #of lines2 rms3 Unc.4 #of lines2 rms3
0.030 MHz 5377 0.027MHz 0.030 MHz 5111 0.029MHz
0.050 MHz 1507 0.041MHz 0.050 MHz 1347 0.047MHz
0.100 MHz 3 0.127MHz 0.200 MHz 4 0.231MHz
0.200 MHz 4 0.286MHz 0.300 MHz 2 0.067MHz
0.300 MHz 2 0.137MHz 0.500 MHz 1 0.262MHz
0.500 MHz 1 0.191MHz

Notes.

(1)

The transitions are grouped by symmetry and torsional quantum number vt.

(2)

The number of transitions or measured lines in each category included in the least squares fit. Due to blending, the total number of assigned transitions differs from the total number of measured lines.

(3)

Root-mean-square deviations from the global fit.

(4)

Data are grouped by their assigned uncertainties in the fit. Weights used for all lines in the fit are 1/(unc.)2.

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