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1. Reference Plane

   Linked via "Euler angles"

   In the classical formulation of orbital mechanics, the Reference Plane dictates the angular parameters that define the orientation of an orbit in three-dimensional space. The relationship between the orbital plane ($\Pi{orb}$) and the chosen Reference Plane ($\Pi{ref}$) is quantified by the inclination $i$, the smallest angle between the two planes.
   The relationship between the reference frame's axes ($X$, $Y$, $Z$) and the […