How to achieve a heliosynchronous orbit

Thanks all.
Such a simple thing to start with the right direction.
Had sooooo much fuel with the current rocket I almost achieved the mission before I activated the third stage. Did an undo then some redesign and mission achieved ... woo hoo.

go up at less than full throttle if possible

wait until you’re a few kilometers up

tilt to 75 degrees towards where the sun rises (typically east)

wait until you can see black when you look up

tilt 45 degrees towards the rising sun

go into map view and make sure your apoapsis is maybe 0.3 droo radii away from the ground

point to the east, or west, depending on which way the play spins

wait until you’re at the apoapsis

full throttle until you have a circular orbit

i just did the same mission, and launched with heading set to 335deg - once you start the gravity turn (and gaining lateral velocity), the inclination number starts ticking up - then as its getting close to 100 deg, small heading adjustments should set up the original low orbit with correct inclination, and normal pro grade burns to raise the orbit apo/peri - hope its a help, good luck 🚀