Black error bars (3-σ): disk-integrated spectrum of Venus (without the limb contribution) between 955.20 and 955.35 cm⁻¹ recorded on March 28, 2015. Models: CO₂ and PH₃ (blue: 5 ppbv; green: 10 ppbv; red: 20 ppbv), calculated for an airmass of 1.15 and for a constant PH₃ volume mixing ratio throughout the mesosphere. The slope of the TEXES spectrum is due to the broad telluric H₂O line centered at 955.215 cm⁻¹.