\begin{table}%t10
\caption{\label{t:lines-gauche-PrCN}Transitions of \textit{gauche}-\textit{n}-propyl cyanide, employed in the present fits, their frequencies (MHz), uncertainties Unc. (kHz), and residuals~O$-$C (kHz) between frequencies measured in the laboratory and those calculated from the final spectroscopic parameters. Unresolved asymmetry splitting (two transitions having the same~$K_a$ and the same transition frequency) has been treated as intensity-weighted average of the two lines.}
%\centering
\small
\begin{tabular}{rclr@{}lrr}
\hline \hline
$J'$, $K_a'$, $K_c'$ & $-$ & $J''$, $K_a''$, $K_c''$ & \multicolumn{2}{c}{Frequency} & Unc. & O$-$C\\
\hline
  2,  0,  2 & $-$ &  1,  0,  1 &  11912&.654 & 10 & $-$18 \\
  2,  1,  2 & $-$ &  1,  1,  1 &  11384&.045 & 10 &  $-$0 \\
  2,  1,  1 & $-$ &  1,  1,  0 &  12508&.374 & 10 & $-$10 \\
  3,  0,  3 & $-$ &  2,  0,  2 &  17785&.949 & 10 &     6 \\
  3,  1,  3 & $-$ &  2,  1,  2 &  17055&.610 &  5 &     1 \\
  2,  1,  2 & $-$ &  1,  0,  1 &  18176&.781 &  5 &     1 \\
  4,  1,  3 & $-$ &  4,  0,  4 &  10286&.601 &  5 &     0 \\
  5,  1,  4 & $-$ &  5,  0,  5 &  12167&.868 &  5 &  $-$3 \\
  6,  1,  5 & $-$ &  6,  0,  6 &  14609&.404 &  5 &     1 \\
  7,  1,  6 & $-$ &  7,  0,  7 &  17634&.822 &  5 &     1 \\
  2,  2,  1 & $-$ &  2,  1,  2 &  22064&.261 &  5 &     0 \\
 24,  3, 21 & $-$ & 25,  2, 24 &   5073&.952 &  5 &     0 \\
 10,  3,  7 & $-$ &  9,  4,  6 &  12670&.827 &  5 &  $-$2 \\
 11,  3,  9 & $-$ & 10,  4,  6 &  16546&.819 &  5 &  $-$3 \\
 28,  3, 26 & $-$ & 27,  4, 23 &  19891&.929 &  5 &     1 \\
 36,  4, 32 & $-$ & 37,  3, 35 &  19547&.899 &  5 &     1 \\
 13,  4, 10 & $-$ & 12,  5,  7 &  15362&.409 &  5 &     0 \\
 38,  4, 35 & $-$ & 37,  5, 32 &   9991&.617 &  5 &     0 \\
 39,  4, 36 & $-$ & 38,  5, 33 &   5311&.217 &  5 &     1 \\
 15,  5, 10 & $-$ & 14,  6,  9 &  13597&.769 &  5 &     1 \\
 12,  7,  6 & $-$ & 13,  6,  7 &  13549&.701 &  5 &  $-$1 \\
 12,  7,  5 & $-$ & 13,  6,  8 &  13551&.095 &  5 &     5 \\
 13,  7,  7 & $-$ & 14,  6,  8 &   7398&.401 &  5 &  $-$2 \\
 13,  7,  6 & $-$ & 14,  6,  9 &   7401&.855 &  5 &     4 \\
 15,  8,  8 & $-$ & 16,  7,  9 &   9498&.238 &  5 &  $-$4 \\
 15,  8,  7 & $-$ & 16,  7, 10 &   9498&.794 &  5 &  $-$5 \\
 19,  7, 12 & $-$ & 18,  8, 11 &   9123&.186 &  5 &  $-$1 \\
 19,  7, 13 & $-$ & 18,  8, 10 &   9116&.781 &  5 &  $-$1 \\
 20,  7, 14 & $-$ & 19,  8, 11 &  15398&.422 &  5 &     0 \\
 22,  8, 14 & $-$ & 21,  9, 13 &  13221&.090 &  5 &  $-$0 \\
 22,  8, 15 & $-$ & 21,  9, 12 &  13218&.792 &  5 &  $-$2 \\
 23,  8, 15 & $-$ & 22,  9, 14 &  19511&.211 &  5 &     2 \\
 23,  8, 16 & $-$ & 22,  9, 13 &  19506&.528 &  5 &     0 \\
 19, 10, 10 & $-$ & 20,  9, 11 &  13681&.725 &  5 &  $-$1 \\
 19, 10,  9 & $-$ & 20,  9, 12 &  13681&.725 &  5 &  $-$1 \\
 25,  9, 17 & $-$ & 24, 10, 14 &  17310&.401 &  5 &  $-$6 \\
 25,  9, 16 & $-$ & 24, 10, 15 &  17311&.214 &  5 &     2 \\
 26,  9, 18 & $-$ & 25, 10, 15 &  23599&.302 &  5 &     2 \\
 26,  9, 17 & $-$ & 25, 10, 16 &  23600&.945 &  5 &    11 \\
 28, 10, 19 & $-$ & 27, 11, 16 &  21388&.390 &  5 &  $-$9 \\
 28, 10, 18 & $-$ & 27, 11, 17 &  21388&.670 &  5 &  $-$6 \\
 26, 13, 14 & $-$ & 27, 12, 15 &  13813&.369 &  5 &  $-$3 \\
 26, 13, 13 & $-$ & 27, 12, 16 &  13813&.369 &  5 &  $-$3 \\
 22,  4, 18 & $-$ & 22,  4, 19 &  25543&.715 &  5 &  $-$1 \\
 25,  5, 20 & $-$ & 25,  5, 21 &  16254&.957 &  5 &     2 \\
 26,  5, 21 & $-$ & 26,  5, 22 &  21090&.090 &  5 &  $-$1 \\
 30,  6, 24 & $-$ & 30,  6, 25 &  16246&.388 &  5 &     1 \\
 31,  6, 25 & $-$ & 31,  6, 26 &  21145&.902 &  5 &     1 \\
 34,  7, 27 & $-$ & 34,  7, 28 &  11727&.780 &  5 &  $-$2 \\
 36,  7, 29 & $-$ & 36,  7, 30 &  20572&.880 &  5 &  $-$2 \\
 37,  7, 30 & $-$ & 37,  7, 31 &  26237&.933 &  5 &     4 \\
 39,  8, 31 & $-$ & 39,  8, 32 &  11013&.037 &  5 &  $-$2 \\
 25,  5, 21 & $-$ & 24,  4, 20 & 182990&.23  & 50 &    19 \\
 26,  6, 21 & $-$ & 25,  6, 20 & 157628&.25  & 50 &    16 \\
 26,  7, 19 & $-$ & 25,  7, 18 & 157477&.90  & 50 &     8 \\
 26, 10, 17 & $-$ & 25, 10, 16 & 156296&.53  & 50 & $-$59 \\
 26, 10, 16 & $-$ & 25, 10, 15 & 156296&.53  & 50 & $-$59 \\
 26, 11, 16 & $-$ & 25, 11, 15 & 156141&.79  & 50 &    65 \\
 26, 11, 15 & $-$ & 25, 11, 14 & 156141&.79  & 50 &    65 \\
 26, 12, 15 & $-$ & 25, 12, 14 & 156032&.20  & 50 & $-$22 \\
\hline 
 26, 12, 14 & $-$ & 25, 12, 13 & 156032&.20  & 50 & $-$22 \\
 26, 13, 14 & $-$ & 25, 13, 13 & 155954&.49  & 50 & $-$56 \\
 26, 13, 13 & $-$ & 25, 13, 12 & 155954&.49  & 50 & $-$56 \\
 26, 14, 13 & $-$ & 25, 14, 12 & 155900&.13  & 50 &  $-$0 \\
 26, 14, 12 & $-$ & 25, 14, 11 & 155900&.13  & 50 &  $-$0 \\
 26, 15, 12 & $-$ & 25, 15, 11 & 155863&.29  & 50 & $-$10 \\
 26, 15, 11 & $-$ & 25, 15, 10 & 155863&.29  & 50 & $-$10 \\
 26, 17, 10 & $-$ & 25, 17,  9 & 155827&.91  & 50 & $-$33 \\
 26, 17,  9 & $-$ & 25, 17,  8 & 155827&.91  & 50 & $-$33 \\
 26, 18,  9 & $-$ & 25, 18,  8 & 155824&.64  & 50 & $-$20 \\
 26, 18,  8 & $-$ & 25, 18,  7 & 155824&.64  & 50 & $-$20 \\
 26, 19,  8 & $-$ & 25, 19,  7 & 155828&.81  & 50 & $-$17 \\
 26, 19,  7 & $-$ & 25, 19,  6 & 155828&.81  & 50 & $-$17 \\
 28,  1, 27 & $-$ & 27,  1, 26 & 157495&.25  & 50 & $-$33 \\
 28,  2, 27 & $-$ & 27,  1, 26 & 157503&.23  & 50 & $-$51 \\
 28,  1, 27 & $-$ & 27,  2, 26 & 157482&.64  & 50 &    46 \\
 28,  2, 27 & $-$ & 27,  2, 26 & 157490&.60  & 50 &     8 \\
 29,  5, 25 & $-$ & 28,  4, 24 & 189805&.28  & 50 &    48 \\
 30,  4, 27 & $-$ & 29,  3, 26 & 178167&.69  & 50 &    31 \\
 30,  4, 26 & $-$ & 29,  4, 25 & 182703&.13  & 50 & $-$23 \\
 30,  5, 26 & $-$ & 29,  4, 25 & 192210&.43  & 50 &    32 \\
 30,  7, 23 & $-$ & 29,  7, 22 & 182961&.27  & 50 & $-$29 \\
 31,  2, 29 & $-$ & 30,  2, 28 & 177803&.90  & 50 & $-$13 \\
 31,  3, 29 & $-$ & 30,  2, 28 & 177857&.94  & 50 &  $-$1 \\
 31,  2, 29 & $-$ & 30,  3, 28 & 177721&.22  & 50 &     6 \\
 31,  3, 29 & $-$ & 30,  3, 28 & 177775&.23  & 50 & $-$12 \\
 31,  3, 28 & $-$ & 30,  3, 27 & 182248&.22  & 50 & $-$22 \\
 31,  4, 28 & $-$ & 30,  3, 27 & 183077&.55  & 50 &    26 \\
 31,  3, 28 & $-$ & 30,  4, 27 & 181050&.65  & 50 &    36 \\
 31,  4, 27 & $-$ & 30,  5, 26 & 178318&.43  & 50 &   156 \\
 31,  5, 26 & $-$ & 30,  5, 25 & 192803&.61  & 50 &     6 \\
 31,  7, 25 & $-$ & 30,  7, 24 & 188156&.51  & 50 & $-$20 \\
 31,  7, 24 & $-$ & 30,  7, 23 & 189515&.12  & 50 & $-$74 \\
 31,  8, 23 & $-$ & 30,  8, 22 & 187858&.13  & 50 &     9 \\
 32,  2, 30 & $-$ & 31,  2, 29 & 183183&.36  & 50 &    18 \\
 32,  3, 30 & $-$ & 31,  2, 29 & 183218&.50  & 50 &    28 \\
 32,  2, 30 & $-$ & 31,  3, 29 & 183129&.35  & 50 &    37 \\
 32,  3, 30 & $-$ & 31,  3, 29 & 183164&.45  & 50 &     6 \\
 32,  4, 29 & $-$ & 31,  3, 28 & 188119&.54  & 50 &  $-$5 \\
 32,  4, 28 & $-$ & 31,  4, 27 & 192927&.96  & 50 & $-$13 \\
 32,  4, 28 & $-$ & 31,  5, 27 & 185714&.09  & 50 &     6 \\
 32, 10, 23 & $-$ & 31, 10, 22 & 192852&.63  & 50 &  $-$4 \\
 32, 10, 22 & $-$ & 31, 10, 21 & 192854&.42  & 50 &  $-$4 \\
 32, 12, 21 & $-$ & 31, 12, 20 & 192320&.23  & 50 &     5 \\
 32, 12, 20 & $-$ & 31, 12, 19 & 192320&.23  & 50 &     5 \\
 32, 13, 20 & $-$ & 31, 13, 19 & 192158&.76  & 50 & $-$19 \\
 32, 13, 19 & $-$ & 31, 13, 18 & 192158&.76  & 50 & $-$19 \\
 32, 14, 19 & $-$ & 31, 14, 18 & 192040&.62  & 50 &    14 \\
 32, 14, 18 & $-$ & 31, 14, 17 & 192040&.62  & 50 &    14 \\
 33,  2, 31 & $-$ & 32,  2, 30 & 188564&.34  & 50 & $-$33 \\
 33,  3, 31 & $-$ & 32,  2, 30 & 188587&.13  & 50 &    13 \\
 33,  2, 31 & $-$ & 32,  3, 30 & 188529&.24  & 50 &  $-$2 \\
 33,  3, 31 & $-$ & 32,  3, 30 & 188551&.94  & 50 & $-$47 \\
 33,  3, 30 & $-$ & 32,  3, 29 & 192871&.17  & 50 &  $-$3 \\
 33,  4, 30 & $-$ & 32,  3, 29 & 193259&.00  & 50 &    18 \\
 33,  3, 30 & $-$ & 32,  4, 29 & 192301&.88  & 50 & $-$16 \\
 33,  4, 30 & $-$ & 32,  4, 29 & 192689&.70  & 50 &  $-$5 \\
 33,  4, 29 & $-$ & 32,  5, 28 & 192663&.51  & 50 &    12 \\
 34,  2, 32 & $-$ & 33,  2, 31 & 193946&.21  & 50 & $-$59 \\
 34,  3, 32 & $-$ & 33,  2, 31 & 193960&.95  & 50 &    14 \\
 34,  2, 32 & $-$ & 33,  3, 31 & 193923&.55  & 50 &    26 \\
 34,  3, 32 & $-$ & 33,  3, 31 & 193938&.16  & 50 & $-$32 \\
 34,  6, 28 & $-$ & 33,  6, 27 & 212120&.06  & 50 &     3 \\
 35,  6, 29 & $-$ & 34,  6, 28 & 218287&.17  & 50 & $-$26 \\
 35,  7, 29 & $-$ & 34,  7, 28 & 212483&.75  & 50 &    16 \\
 35,  8, 28 & $-$ & 34,  8, 27 & 212458&.29  & 50 & $-$13 \\
\hline
 35,  9, 27 & $-$ & 34,  9, 26 & 211828&.06  & 50 &   142 \\
 35,  9, 26 & $-$ & 34,  9, 25 & 211938&.01  & 50 &     7 \\
 36,  4, 32 & $-$ & 35,  5, 31 & 211527&.01  & 50 &    14 \\
 36, 10, 27 & $-$ & 35, 10, 26 & 217402&.38  & 50 & $-$15 \\
 36, 10, 26 & $-$ & 35, 10, 25 & 217418&.12  & 50 &  $-$2 \\
 36, 11, 26 & $-$ & 35, 11, 25 & 216940&.59  & 50 & $-$30 \\
 36, 11, 25 & $-$ & 35, 11, 24 & 216941&.74  & 50 &    33 \\
 36, 12, 25 & $-$ & 35, 12, 24 & 216609&.17  & 50 & $-$33 \\
 36, 12, 24 & $-$ & 35, 12, 23 & 216609&.17  & 50 & $-$33 \\
 36, 13, 24 & $-$ & 35, 13, 23 & 216367&.23  & 50 &  $-$1 \\
 36, 13, 23 & $-$ & 35, 13, 22 & 216367&.23  & 50 &  $-$1 \\
 36, 14, 23 & $-$ & 35, 14, 22 & 216188&.17  & 50 &    23 \\
 36, 14, 22 & $-$ & 35, 14, 21 & 216188&.17  & 50 &    23 \\
 36, 16, 21 & $-$ & 35, 16, 20 & 215956&.57  & 50 & $-$26 \\
 36, 16, 20 & $-$ & 35, 16, 19 & 215956&.57  & 50 & $-$26 \\
 36, 17, 20 & $-$ & 35, 17, 19 & 215885&.18  & 50 & $-$12 \\
 36, 17, 19 & $-$ & 35, 17, 18 & 215885&.18  & 50 & $-$12 \\
 36, 18, 19 & $-$ & 35, 18, 18 & 215835&.30  & 50 &     9 \\
 36, 18, 18 & $-$ & 35, 18, 17 & 215835&.30  & 50 &     9 \\
 36, 20, 17 & $-$ & 35, 20, 16 & 215784&.95  & 50 &    23 \\
 36, 20, 16 & $-$ & 35, 20, 15 & 215784&.95  & 50 &    23 \\
 36, 21, 16 & $-$ & 35, 21, 15 & 215779&.22  & 50 &    45 \\
 36, 21, 15 & $-$ & 35, 21, 14 & 215779&.22  & 50 &    45 \\
 36, 22, 15 & $-$ & 35, 22, 14 & 215783&.85  & 50 &     5 \\
 36, 22, 14 & $-$ & 35, 22, 13 & 215783&.85  & 50 &     5 \\
 36, 23, 14 & $-$ & 35, 23, 13 & 215797&.53  & 50 & $-$19 \\
 36, 23, 13 & $-$ & 35, 23, 12 & 215797&.53  & 50 & $-$19 \\
 36, 24, 13 & $-$ & 35, 24, 12 & 215819&.22  & 50 &    36 \\
 36, 24, 12 & $-$ & 35, 24, 11 & 215819&.22  & 50 &    36 \\
 36, 25, 12 & $-$ & 35, 25, 11 & 215847&.81  & 50 & $-$52 \\
 36, 25, 11 & $-$ & 35, 25, 10 & 215847&.81  & 50 & $-$52 \\
 36, 26, 11 & $-$ & 35, 26, 10 & 215882&.85  & 50 & $-$12 \\
 36, 26, 10 & $-$ & 35, 26,  9 & 215882&.85  & 50 & $-$12 \\
 36, 27, 10 & $-$ & 35, 27,  9 & 215923&.60  & 50 &    10 \\
 36, 27,  9 & $-$ & 35, 27,  8 & 215923&.60  & 50 &    10 \\
 36, 28,  9 & $-$ & 35, 28,  8 & 215969&.54  & 50 & $-$15 \\
 36, 28,  8 & $-$ & 35, 28,  7 & 215969&.54  & 50 & $-$15 \\
 36, 32,  5 & $-$ & 35, 32,  4 & 216198&.45  & 50 &     4 \\
 36, 32,  4 & $-$ & 35, 32,  3 & 216198&.45  & 50 &     4 \\
 37,  3, 34 & $-$ & 36,  3, 33 & 214265&.30  & 50 &  $-$8 \\
 37,  3, 34 & $-$ & 36,  4, 33 & 214147&.29  & 50 & $-$26 \\
 37,  4, 34 & $-$ & 36,  4, 33 & 214225&.81  & 50 & $-$13 \\
 38,  1, 37 & $-$ & 37,  2, 36 & 211401&.39  & 50 &    59 \\
 38,  3, 36 & $-$ & 37,  2, 35 & 215476&.23  & 50 &    36 \\
 38,  2, 36 & $-$ & 37,  3, 35 & 215469&.85  & 50 & $-$35 \\
 38,  3, 35 & $-$ & 37,  3, 34 & 219628&.21  & 50 &    19 \\
 38,  3, 35 & $-$ & 37,  4, 34 & 219549&.67  & 50 & $-$13 \\
 38,  4, 35 & $-$ & 37,  4, 34 & 219601&.64  & 50 & $-$40 \\
 39,  0, 39 & $-$ & 38,  1, 38 & 212743&.02  & 50 &     6 \\
 39,  2, 37 & $-$ & 38,  2, 36 & 220854&.26  & 50 &  $-$8 \\
 39,  3, 37 & $-$ & 38,  2, 36 & 220855&.81  & 50 & $-$18 \\
 39,  2, 37 & $-$ & 38,  3, 36 & 220851&.79  & 50 & $-$24 \\
 39,  3, 37 & $-$ & 38,  3, 36 & 220853&.34  & 50 & $-$33 \\
 40,  0, 40 & $-$ & 39,  1, 39 & 218129&.30  & 50 &    18 \\
 47, 14, 34 & $-$ & 46, 14, 33 & 282874&.18  & 50 &    42 \\
 47, 17, 31 & $-$ & 46, 17, 30 & 282070&.21  & 50 &     4 \\
 47, 17, 30 & $-$ & 46, 17, 29 & 282070&.21  & 50 &     4 \\
 47, 19, 29 & $-$ & 46, 19, 28 & 281801&.94  & 50 &    20 \\
 47, 19, 28 & $-$ & 46, 19, 27 & 281801&.94  & 50 &    20 \\
 47, 20, 28 & $-$ & 46, 20, 27 & 281716&.83  & 50 &    33 \\
 47, 20, 27 & $-$ & 46, 20, 26 & 281716&.83  & 50 &    33 \\
 47, 21, 27 & $-$ & 46, 21, 26 & 281656&.67  & 50 &    10 \\
 47, 21, 26 & $-$ & 46, 21, 25 & 281656&.67  & 50 &    10 \\
 47, 22, 26 & $-$ & 46, 22, 25 & 281617&.41  & 50 & $-$44 \\
\hline
 47, 22, 25 & $-$ & 46, 22, 24 & 281617&.41  & 50 & $-$44 \\
 47, 23, 25 & $-$ & 46, 23, 24 & 281596&.02  & 50 & $-$16 \\
 47, 23, 24 & $-$ & 46, 23, 23 & 281596&.02  & 50 & $-$16 \\
 47, 24, 24 & $-$ & 46, 24, 23 & 281589&.94  & 50 &     8 \\
 47, 24, 23 & $-$ & 46, 24, 22 & 281589&.94  & 50 &     8 \\
 47, 25, 23 & $-$ & 46, 25, 22 & 281597&.15  & 50 & $-$18 \\
 47, 25, 22 & $-$ & 46, 25, 21 & 281597&.15  & 50 & $-$18 \\
 47, 26, 22 & $-$ & 46, 26, 21 & 281616&.14  & 50 & $-$10 \\
 47, 26, 21 & $-$ & 46, 26, 20 & 281616&.14  & 50 & $-$10 \\
 47, 27, 21 & $-$ & 46, 27, 20 & 281645&.57  & 50 &  $-$9 \\
 47, 27, 20 & $-$ & 46, 27, 19 & 281645&.57  & 50 &  $-$9 \\
 47, 28, 20 & $-$ & 46, 28, 19 & 281684&.43  & 50 &    48 \\
 47, 28, 19 & $-$ & 46, 28, 18 & 281684&.43  & 50 &    48 \\
 47, 29, 19 & $-$ & 46, 29, 18 & 281731&.64  & 50 & $-$30 \\
 47, 29, 18 & $-$ & 46, 29, 17 & 281731&.64  & 50 & $-$30 \\
 47, 30, 18 & $-$ & 46, 30, 17 & 281786&.66  & 50 & $-$36 \\
 47, 30, 17 & $-$ & 46, 30, 16 & 281786&.66  & 50 & $-$36 \\
 47, 31, 17 & $-$ & 46, 31, 16 & 281848&.86  & 50 &    31 \\
 47, 31, 16 & $-$ & 46, 31, 15 & 281848&.86  & 50 &    31 \\
 47, 33, 15 & $-$ & 46, 33, 14 & 281992&.38  & 50 &    34 \\
 47, 33, 14 & $-$ & 46, 33, 13 & 281992&.38  & 50 &    34 \\
 47, 34, 14 & $-$ & 46, 34, 13 & 282072&.85  & 50 & $-$22 \\
 47, 34, 13 & $-$ & 46, 34, 12 & 282072&.85  & 50 & $-$22 \\
 48,  5, 43 & $-$ & 47,  5, 42 & 281724&.06  & 50 &     0 \\
 48,  6, 43 & $-$ & 47,  6, 42 & 281635&.78  & 50 & $-$33 \\
\hline
\end{tabular}
\end{table}