\begin{table}%T3
\caption{\label{tab_lines} OCS observed line parameters.}
\small%\centering
\par
\begin{tabular}{llllllll}
\hline\hline\noalign{\smallskip}
Molecule & Observed & $T^*_{\rm A}$ & $\int T^*_{\rm A} {\rm d}v$ &
Transition & Rest & $E_{\rm up}$ & $S_{ij}$\\ 
 & $v_{\rm LSR}$ (km s$^{-1}$) & (K) & (K~km~s$^{-1}$) & $J$ & frequency (MHz) &
(K) & \\
\hline
OCS & 7.6 & 3.71 & 40.2~$\pm$~0.7 & 7$-$6 & 85~139.104 & 16.3 & 7.00\\
  & 8.1 & 5.81 & 62.6~$\pm$~0.6 & 8$-$7 & 97~301.208 & 21.0 & 8.00\\
  & 7.8 & 6.95 & 78~$\pm$~1 & 9$-$8 & 109~463.063 & 26.3 & 9.00\\
  & 7.7 & 7.97 & 96~$\pm$~3 & 11$-$10 & 133~785.898 & 38.5 & 11.0\\
  & 7.6 & 12.2 & 139~$\pm$~2 & 12$-$11 & 145~946.815 & 45.5 & 12.0\\
  & 6.1 & 10.6 & 146~$\pm$~8 & 13$-$12 & 158~107.358 & 53.1 & 13.0\\
  & 8.6 & 10.0 & ... & 14$-$13 & 170~267.494 & 61.3 & 14.0\\
  & 7.5 & 10.9 & 167~$\pm$~10 & 17$-$16 & 206~745.155 & 89.3 & 17.0\\
  & 7.0 & 10.2 & 151~$\pm$~3 & 18$-$17 & 218~903.355 & 99.8 & 18.0\\
  & 7.2 & 12.3 & 184~$\pm$~10 & 19$-$18 & 231~060.993 & 110.9 & 19.0\\
  & 6.5 & 9.73 & 163~$\pm$~9 & 20$-$19 & 243~218.037 & 122.6 & 20.0\\
  & 6.7 & 10.2 & 121~$\pm$~3 & 21$-$20 & 255~374.457 & 134.8 & 21.0\\
  & 7.7 & 20.3\tablefootmark{1} & ... & 22$-$21 & 267~530.220 & 
147.7 & 22.0\\
  & 7.7 & 11.1 & 118~$\pm$~6 & 23$-$22 & 279~685.296 & 161.1 & 23.0\\
\noalign{\smallskip}
OC$^{34}$S & 7.1 & 0.32 & 2.3~$\pm$~0.2 & 7$-$6 & 83~057.970  & 15.9 & 7.00\\
  & 6.8 & 0.46 & 5.2~$\pm$~0.7 & 8$-$7 & 94~922.798 & 20.5 & 8.00\\
  & 8.7 & 0.61 & 5.3~$\pm$~0.6 & 9$-$8 & 106~787.389 & 25.6 & 9.00\\
  & 7.2 & 1.46\tablefootmark{2} & ... & 11$-$10 & 130~515.735  & 
37.6 & 11.0\\
  & 7.6 & 1.15 & 10~$\pm$~1 & 12$-$11 & 142~379.431 & 44.4 & 12.0\\
  & 1.9 & 3.06\tablefootmark{3} & ... & 13$-$12 & 154~242.770  & 
51.8 & 13.0\\
  & 7.8 & 1.70 & 15~$\pm$~1 & 14$-$13 & 166~105.722 & 59.8 & 14.0\\
  & 6.9 & 1.41 & 8.3~$\pm$~0.6 & 15$-$14 & 177~968.256 & 68.3 & 15.0\\
  & 6.6 & 1.31 & 11.4~$\pm$~0.8 & 17$-$16 & 201~691.955 & 87.1 & 17.0\\
  & 6.4 & 1.49 & 15~$\pm$~1 & 18$-$17 & 213~553.060  & 97.4 & 18.0\\
  & 7.3 & 1.75 & 15.5~$\pm$~0.9 & 19$-$18 & 225~413.628 & 108.2 & 19.0\\
  & 7.4 & 1.79 & 18~$\pm$~2 & 20$-$19 & 237~273.631 & 119.6 & 20.0\\
  & 7.7 & 2.77\tablefootmark{3} & ... & 21$-$20 & 249~133.037 & 
131.5 & 21.0\\
  & 5.9 & 1.84 & 18.9~$\pm$~0.9 & 22$-$21 & 260~991.818 & 144.1 & 22.0\\
  & 7.4 & 2.03 & 23~$\pm$~1 & 23$-$22 & 272~849.944 & 157.2 & 23.0\\
\noalign{\smallskip}
OC$^{33}$S & 7.5 & 0.086 & 1.27~$\pm$~0.10 & 7$-$6 & 84~067.083 & 16.1 & 7.00\\
  & (4) & ... & ... & 8$-$7 & 96~076.057 & 20.8 & 8.00\\
  & 7.0 & 0.15 & 1.12~$\pm$~0.11 & 9$-$8 & 108~084.786 & 25.9 & 9.00\\
  & (4) & ... & ... & 11$-$10 & 132~101.391 & 38.0 & 11.0\\
  & (5) & ... & ... & 12$-$11 & 144~109.205 & 45.0 & 12.0\\
  & 7.2 & 0.61\tablefootmark{3} & ... & 13$-$12 & 156~116.654  & 
52.5 & 13.0\\
  & 8.7 & 0.56\tablefootmark{6} & ... & 14$-$13 & 168~123.706 & 
60.5 & 14.0\\
  & (1) & ... & ... & 17$-$16 & 204~142.179 & 88.2 & 17.0\\
  & 7.3 & 0.27 & 2.2~$\pm$~0.2 & 18$-$17 & 216~147.340  & 98.6 & 18.0\\
  & 6.8 & 0.66\tablefootmark{7} & ... & 19$-$18 & 228~151.952 & 
109.5 & 19.0\\
  & 7.2 & 0.73\tablefootmark{8} & ... & 20$-$19 & 240~155.985 & 
121.0 & 20.0\\
  & 10.1 & 1.03\tablefootmark{9} & ... & 21$-$20 & 252~159.408 & 
133.1 & 21.0\\
  & 7.1 & 0.79\tablefootmark{1} & ... & 22$-$21 & 264~162.190 & 
145.8 & 22.0\\
  & 6.7 & 0.75\tablefootmark{10} & ... & 23$-$22 & 276~164.302 & 
159.1 & 23.0\\
\noalign{\smallskip}
O$^{13}$CS & 7.8 & 0.14 & 1.09~$\pm$~0.14 & 7$-$6 & 84~865.153 & 16.3 & 7.00\\
  & 7.8 & 0.26 & ... & 8$-$7 & 96~988.123 & 20.9 & 8.00\\
  & 7.2 & 0.28 & 1.8~$\pm$~0.2 & 9$-$8 & 109~110.844 & 26.2 & 9.00\\
  & 6.8 & 0.43\tablefootmark{11} & ... & 11$-$10 & 133~355.415 & 38.4 & 11.0\\
  & 8.2 & 0.65 & 5.5~$\pm$~0.4 & 12$-$11 & 145~477.201 & 45.4 & 12.0\\
  & 7.3 & 0.68 & 5.4~$\pm$~0.5 & 13$-$12 & 157~598.615 & 52.9 & 13.0\\
  & 7.5 & 0.89 & ... & 14$-$13 & 169~719.623 & 61.1 & 14.0\\
  & (5) & ... & ... & 17$-$16 & 206~079.906 & 89.0 & 17.0\\
  & 6.1 & 1.00\tablefootmark{13} & ... & 18$-$17 & 218~198.984 & 
99.5 & 18.0\\
  & 7.4 & 0.93 & 12~$\pm$~1 & 19$-$18 & 230~317.500 & 110.5 & 19.0\\
  & (12) & ... & ... & 20$-$19 & 242~435.425 & 122.2 & 20.0\\
  & 6.9 & 1.97\tablefootmark{14} & ... & 21$-$20 & 254~552.727 & 
134.4 & 21.0\\
  & 7.7 & 0.80 & 5.5~$\pm$~0.4 & 22$-$21 & 266~669.375 & 147.2 & 22.0\\
  & 6.7 & 0.95 & 6.3~$\pm$~0.6 & 23$-$22 & 278~785.337 & 160.6 & 23.0\\
\noalign{\smallskip}
$^{18}$OCS & noise level & ... & ... & 7$-$6 & 79~866.447 & 15.3 & 7.00\\
  & noise level & ... & ... & 8$-$7 & 91~275.396 & 19.7 & 8.00\\
  & 7.9 & 0.05 & ... & 9$-$8 & 102~684.127 & 24.6 & 9.00\\
  & 9.3 & 0.18\tablefootmark{15} & ... & 10$-$9 & 114~092.613 & 
30.1 & 10.0\\
  & 7.3 & 0.31\tablefootmark{15} & ... & 12$-$11 & 136~908.743 & 
42.7 & 12.0\\ & 9.1 & 0.11 & ... & 13$-$12 & 148~316.332 & 49.8 & 13.0\\
& 7.2 & 0.10 & ... & 14$-$13 & 159~723.567 & 57.5 & 14.0\\
& 9.6 & 0.17\tablefootmark{16} & ... & 15$-$14 & 171~130.422 & 
65.7 & 15.0\\
   & 3.2 & 0.65\tablefootmark{17,18} & ... & 18$-$17 & 
205~348.431 & 93.6 & 18.0\\
  & 7.1 & 0.50\tablefootmark{3} & ... & 19$-$18 & 216~753.491 & 
104.0 & 19.0\\
  & (19) & ... & ... & 20$-$19 & 228~158.034 & 115.0 & 20.0\\
  & 8.2 & 0.23\tablefootmark{2} & ... & 21$-$20 & 239~562.034 & 
126.5 & 21.0\\
  & 6.6 & 0.45\tablefootmark{4} & ... & 22$-$21 & 250~965.463 & 
138.5 & 22.0\\
  & 6.8 & 0.26\tablefootmark{15} & ... & 23$-$22 & 262~368.293 & 
151.1 & 23.0\\
  & (1) & ... & ... & 24$-$23 & 273~770.498 & 164.3 & 24.0\\
\noalign{\smallskip}
O$^{13}$C$^{34}$S\tablefootmark{20} & 5.3 & 0.25 & ... & 20$-$19 & 
236~429.714 & 119.2 & 20.0\\
  & 7.9 & 0.15 & ... & 23$-$22 & 271~879.480 & 156.6 & 23.0\\
\noalign{\smallskip}
$^{17}$OCS\tablefootmark{20} & 7.3 & 0.09 & ... & 23$-$22 & 270~589.988 & 
155.9 & 23.0\\
\noalign{\smallskip}
OC$^{36}$S\tablefootmark{20} & 4.7 & 0.06 & ... & 12$-$11 & 
139~184.392 & 43.4 & 12.0 \\
  & 7.1 & 0.03 & ... & 13$-$12 & 150~781.546 & 50.7 & 13.0\\
  & 7.9 & 0.06 & ... & 14$-$13 & 162~378.329 & 58.5 & 14.0\\
  & 8.3 & 0.17 & ... & 23$-$22 & 266~727.978 & 153.6 & 23.0\\
\noalign{\smallskip}
OCS $\nu_2$ = 1$^+$ & 10.2 & 0.067\tablefootmark{21} & ... & 7$-$6 & 
85~331.836 & 15.8 & 6.86\\
  & 5.8 & 0.040 & 0.29~$\pm$~0.13 & 8$-$7 & 97~521.462 & 20.5 & 7.88\\
  & 7.2 & 0.068 & 0.69~$\pm$~0.07 & 9$-$8 & 109~710.834 & 25.7 & 8.89\\
  & 5.8 & 0.11 & 1.14~$\pm$~0.08 & 11$-$10 & 134~088.688 & 38.0 & 10.9\\ 
  & 5.3 & 0.15 & 2.1~$\pm$~0.3 & 12$-$11 & 146~277.106 & 45.0 & 11.9\\
  & 6.6 & 0.22 & 2.05~$\pm$~0.12 & 13$-$12 & 158~465.143 & 52.7 & 12.9\\
  & 7.5 & 0.46\tablefootmark{8} & ... & 14$-$13 & 170~652.766 & 
60.8 & 13.9\\
  & 7.9 & 1.19\tablefootmark{22} & ... & 17$-$16 & 207~212.838 & 
88.9 & 16.9\\
  & (23) & ... & ... & 18$-$17 & 219~398.490 & 99.5 & 17.9\\
  & 5.6 & 0.44 & 4.3~$\pm$~0.4 & 19$-$18 & 231~583.570 & 110.6 & 18.9\\
  & 6.0 & 0.65\tablefootmark{8} & ... & 20$-$19 & 243~768.045 & 
122.3 & 19.9\\
  & (1) & ... & ... & 21$-$20 & 255~951.885 & 134.6 & 21.0\\
  & 1.9 & 0.60\tablefootmark{8} & ... & 22$-$21 & 268~135.057 & 
147.4 & 22.0\\
  & 7.5 & 0.47 & 4.2~$\pm$~0.3 & 23$-$22 & 280~317.529 & 160.9 & 23.0\\
\noalign{\smallskip}
OCS $\nu_2$ = 1$^-$ & 10.0 & 0.048\tablefootmark{3} & ... & 7$-$6 & 
85~242.782 & 15.8 & 6.86\\
  & 6.5 & 0.048 & 0.30~$\pm$~0.06 & 8$-$7 & 97~419.688 & 20.5 & 7.88\\
  & (23) & ... & ... & 9$-$8 & 109~596.341 & 25.7 & 8.89\\
  & 7.3 & 0.14 & 1.4~$\pm$~0.2 & 11$-$10 & 133~948.759 & 38.0 & 10.9\\ 
  & (23) & ... & ... & 12$-$11 & 146~124.461 & 45.0 & 11.9\\
  & 5.9 & 0.26 & 4.0~$\pm$~0.2 & 13$-$12 & 158~299.783 & 52.6 & 12.9\\
  & (5) & ... & ... & 14$-$13 & 170~652.766 & 60.8 & 13.9\\
  & 7.9 & 0.54 & 4~$\pm$~1 & 17$-$16 & 206~996.634 & 88.9 & 16.9\\
  & (23) & ... & ... & 18$-$17 &  219~169.579 & 99.4 & 17.9\\
  & 6.7 & 0.38 & ... & 19$-$18 & 231~341.953 & 110.5 & 18.9\\
  & 8.8 & 0.50\tablefootmark{10} & ... & 20$-$19 & 243~513.725 &
122.1 & 19.9\\
  & (23) & ... & ... & 21$-$20 & 255~684.863 & 134.4 & 21.0\\
  & (8) & ... & ... & 22$-$21 & 267~855.336 & 147.3 & 22.0\\
  & 4.9 & 0.44 & 3.8~$\pm$~0.2 & 23$-$22 & 280~025.112 & 160.7 & 23.0\\
\noalign{\smallskip}
OCS $\nu_3$ = 1\tablefootmark{20} & 7.2 & 0.06 & ... & 11$-$10 & 
133~386.789 & 38.4 & 11.0\\
  & 7.3 & 0.10 & ... & 13$-$12 & 157~635.614 & 53.0 & 13.0\\
 & 5.5 & 0.13 & ... & 18$-$17 & 218~249.861 & 99.5 & 18.0\\
 & 5.6 & 0.11 & ... & 21$-$20 & 254~611.772 & 134.4 & 21.0\\ 
 \hline
\end{tabular}
 \tablefoot{Observed transitions of OCS, OCS vibrationally excited and 
  OCS isotopologues in the frequency range of the Orion KL
  survey. Column~1 indicates the isotopologue or the vibrational
  state, Col.~2 gives the observed (centroid) radial velocity, Col.~3 the
peak line temperature, Col.~4 the integrated line intensity, Col.
  5 the quantum numbers, Col.~6 the
assumed rest frequencies, Col.~7 the energy of the upper level, and
Col.~8 the line strength.\\
\tablefoottext{1}{Blended with SO$_2$;} \tablefoottext{2}{blended with CH$_3$OCH$_3$;} \tablefoottext{3}{blended with CH$_3$CH$_2$CN b type;}
\tablefoottext{4}{blended with CH$_3$OCOH;} \tablefoottext{5}{blended with CH$_3$CH$_2$CN a type;}
\tablefoottext{6}{blended with g$^+$CH$_3$CH$_2$OH;}
\tablefoottext{7}{blended with HC$_3$N $\nu_7$ = 2;}
\tablefoottext{8}{blended with U line;}
\tablefoottext{9}{blended with $^{34}$SHD;}
\tablefoottext{10}{blended with NH$_2$CHO;}
\tablefoottext{11}{blended with CH$_2$CHCN $\nu_{11}$ = 1;}
\tablefoottext{12}{blended with CH$_3$OH;}
\tablefoottext{13}{blended with p-H$_2$CO;}
\tablefoottext{14}{blended with SO;}
\tablefoottext{15}{blended with CH$_3$CH$_2$CN out of plane torsion
  (Tercero et~al., in preparation);}
\tablefoottext{16}{blended with CH$_2$CHCN $\nu_{15}$ = 1;}
\tablefoottext{17}{blended with CH$_2$CH$_3$$^{13}$CN;}
\tablefoottext{18}{blended with $^{13}$CH$_2$CH$_3$CN;}
\tablefoottext{19}{blended with CH$_2$CHCN;}
\tablefoottext{20}{only for non-blended lines;}
\tablefoottext{21}{blended with c-C$_2$H$_4$O;}
\tablefoottext{22}{blended with (CH$_3$)$_2$CO;}
\tablefoottext{23}{blended with HC$_3$N~$\nu_7$~=~1.}}
\vspace*{4mm}
\end{table}