>A Sun-synchronous orbit (SSO), also called a heliosynchronous orbit,[1] is a nearly polar orbit around a planet, in which the satellite passes over any given point of the planet's surface at the same local mean solar time.[2][3] More technically, it is an orbit arranged so that it precesses through one complete revolution each year, so it always maintains the same relationship with the Sun.
paulfromatlanta t1_iy611o2 wrote
I don't understand how it can be both sun-synchronous and flying around the earth at 430 miles up.