RAAN

Simply put, RAAN is Right Ascension of the Ascending Node: the angle from the vernal equinox to the ascending node, fixing an orbit's orientation in space.

Definition

Right Ascension of the Ascending Node: the angle from the vernal equinox to the ascending node, fixing an orbit's orientation in space.

Example

Sun-synchronous orbits require a specific RAAN to hold their lighting.

Category: ORBITS

RAAN illustration

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