Top: map of the H₂O₂/CO₂ volume mixing inferred from the H₂O₂/CO₂ line depthratio, using the transitions shown in Fig. 2. The conversion factor between the H₂O₂ vmr and the H₂O₂ ldr is the following: vmr = 45.0/0.13 ldr (see text, Sect. 2.2). The subsolar point is shown as a white dot. Middle: synthetic map of the H₂O₂ vmr for Ls = 145–150° as predicted by the LMD-MGCM (Forget et al. 1999). Bottom: same synthetic map, generated by the GEM model (Daerden et al. 2019). The bright spots observed on the TEXES map at the limb may be an artifact, or due to the low signal near the limb, implying a larger error bar.