gravitational gradient guidance

gravitational gradient guidance

[‚grav·ə′tā·shən·əl ′grād·ē·ənt ‚gīd·əns]
(navigation)
A system for maintaining the desired orientation of a space vehicle in the vicinity of the earth (or any large celestial body) which utilizes the differences in the pull of gravity between points on the craft having different distances from the earth.