The nighttime NO\documentclass[12pt]{minimal}
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\begin{document}$NO$\end{document} 5.3 μm emission at Irkutsk location is studied during the November 20, 2003, geomagnetic storm by using a coupled 1-D Boltzmann kinetic-fluid model, to calculate densities of the major ions: O2+\documentclass[12pt]{minimal}
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\begin{document}$O_{2}^{+}$\end{document}; N2+\documentclass[12pt]{minimal}
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\begin{document}$N_{2}^{+}$\end{document}; NO+\documentclass[12pt]{minimal}
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\begin{document}$NO^{+}$\end{document}; O+\documentclass[12pt]{minimal}
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\begin{document}$O^{+}$\end{document}, nitrogen atoms: N(4S)\documentclass[12pt]{minimal}
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\begin{document}$N(^{4}S)$\end{document}; N(2D)\documentclass[12pt]{minimal}
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\begin{document}$N(^{2}D)$\end{document}, and vibrationally excited levels: NO(v≤7)\documentclass[12pt]{minimal}
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\begin{document}$NO(v \leq 7)$\end{document}, in the thermosphere between 100 and 200 km. By considering chemical reactions of neutrals and ions species in addition to molecular diffusion and an updated reaction rate coefficients, a good agreement is seen between numerical simulation and SABER (Sounding of the Atmosphere using Broadband Emission Radiometry) measurements of NO\documentclass[12pt]{minimal}
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\begin{document}$NO$\end{document} 5.3 μm volume emission rate, compared to models based on photochemical equilibrium assumption.
