(a) Background neutral density profiles and (b) background neutral temperature as derived by MarTIM and used in the kinetic code. In part (b), left-to-right represent SMIN-to-SMAX for MarTIM (solid lines) and from MTGCM (see text) (dashed lines). Black dots represent spacecraft observations of exospheric temperatures for MGS and Mariner 6 & 7 (see text).