Analytic Orbit Design for Observation of Earth Sites

Francesco de Dilectis ； Daniele Mortari

《Frontiers in Aerospace Engineering》 2卷3期 (2013/08) Pp. 169-179

並列摘要

Satellite observation of specific Earth sites or regions usually requires the use of compatible (resonant) orbits. If the observing sensor is optimized for a given altitude then the orbit must also be circular. This study provides analytical derivation of satellite ground tracks of any compatible circular orbits and for a full repetition cycle. The purpose is to offer equations whose solutions are all the points coordinates in which the ground track crosses itself, here called □-points. The geographical locations of these points along with the approximate expressions of the associated dwell times allow developing optimal orbit design for civilian or military satellite observation missions.

並列關鍵字

Satellite Observation ； Resonant Orbits ； Repetitive Ground Tracks