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\section{PI-11. Rovibrational Line Lists for Nine Isotopologues of CO Suitable for Modeling and Interpreting Spectra at Very High Temperatures and Diverse Environments}
\textbf{G.~Li,$^a$ \underline{I.~E.~Gordon},$^a$ L.~S.~Rothman,$^a$ Y.~Tan,$^b$ S.-M.~Hu,$^b$ S.~Kassi,$^c$ A.~Campargue$^c$}
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$^a$\textit{Harvard-Smithsonian Center for Astrophysics, Atomic and Molecular
Physics Division, Cambridge MA 02138-1516, USA}

$^b$\textit{Hefei National Laboratory for Sciences at Microscale, University of Science and Technology of China, 230026 Hefei, China}

$^c$\textit{Universit\'{e} de Grenoble, CNRS UMR 5588, LIPHY, 38041 Grenoble, France}
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\index{author}{Li G.} \index{author}{Gordon I. E.} \index{author}{Rothman L. S.} \index{author}{Tan Y.}
\index{author}{Hu S.-M.} \index{author}{Campargue A.} \index{author}{Kassi S.}

 In order to improve and extend the existing HITRAN database\footnote{L. S. Rothman, I. E. Gordon, et al. "The HITRAN 2012 molecular spectroscopic database," JQSRT 113, 4-50 (2013).} and HITEMP\footnote{L. S. Rothman, I. E. Gordon, et al. "HITEMP, the high-temperature molecular spectroscopic database," JQSRT 111, 2139-2150 (2010).} data for carbon monoxide, the ro-vibrational line lists were computed for all transitions of nine isotopologues of the CO molecule, namely $^{12}$C$^{16}$O, $^{12}$C$^{17}$O, $^{12}$C$^{18}$O, $^{13}$C$^{16}$O, $^{13}$C$^{17}$O, $^{13}$C$^{18}$O, $^{14}$C$^{16}$O, $^{14}$C$^{17}$O, and $^{14}$C$^{18}$O in the electronic ground state up to $v$ = 41 and $J$ = 150.  Line positions and intensity calculations were carried out using a newly-determined piece-wise dipole moment function (DMF) in conjunction with the wavefunctions calculated from a previous experimentally-determined potential energy function of Coxon and Hajigeorgiou\footnote{J. Coxon and P. Hajigeorgiou. "Direct potential fit analysis of the $X^{1}\Sigma^{+}$ ground state of CO," J. Chem. Phys. 121, 2992-3008 (2004).}.  Ab initio calculations and a direct-fit method which simultaneously fits all the reliable experimental ro-vibrational matrix elements has been used to construct the piecewise dipole moment function.

 To provide additional input parameters into the fit, new Cavity Ring Down Spectroscopy experiments were carried out to enable measurements of the lines in the 4-0 band with low uncertainty (Grenoble) as well as the first measurements of lines in the 6-0 band (Hefei).  Accurate partition sums have been derived through direct summation for a temperature range from 1 to 9000 Kelvin.  A complete set of broadening and shift parameters is also provided and now include parameters induced by CO$_{2}$ and H$_{2}$ in order to aid planetary applications.
