Does Mars Prime Meridian line face the same direction in space every summer solstice?

[ncc1701d]

hi all,
Does Mars Prime Meridian line face the same direction in space every summer solstice?
I understand Mars tilts twords the sun on summer solstice (Ls = 90 deg) but not sure if the prime meridian faces directly twords the sun on that day as well.

Maybe it faces the sun on Ls = 0 deg ...just not sure.