sun-synchronous orbit

(redirected from Dawn/dusk orbit)
Also found in: Dictionary, Wikipedia.

sun-synchronous orbit

[′sən ¦siŋ·krə·nəs ′ȯr·bət]
(aerospace engineering)
An earth orbit of a spacecraft so that the craft is always in the same direction relative to that of the sun; as a result, the spacecraft passes over the equator at the same spots at the same times.