The OH Venus nightglow spectrum: Intensity and vibrational composition from VIRTIS-Venus Express observations

► The infrared OH Meinel bands have been observed by VIRTIS on board Venus Express. ► The Δv=1 and Δv=2 sequences are significantly correlated in altitude and intensity. ► Most of the population is in the lower vibrational levels. ► A non-LTE model was developed using O, O3 and CO2 densities from VEX measurements. ► Observations are reproduced with these densities and a Single Quantum jump model.