An intermediateaveraged theory for high altitude orbits
Abstract
An analytic theory for the evolution of high altitude satellite orbits is developed in this note. The distinctive feature of the theory lies in the double averaging of the differential equations  once over the period of the orbit, and secondly over the period of the moon. This technique is called intermediate averaging to distinguish it from the conventional doubly averaged theories, and to denote the time scales inherent in the averaging technique.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 June 1979
 Bibcode:
 1979STIN...8012104S
 Keywords:

 Orbit Calculation;
 Orbital Mechanics;
 Satellite Orbits;
 Differential Equations;
 Equations Of Motion;
 Orbit Perturbation;
 Astrodynamics