RT Journal Article T1 Equilibrium positions on stationary orbits and planetary principal inertia axis orientations for the Solar System A1 Romero Pérez, María Del Pilar A1 Barderas Manchado, Gonzalo A1 Mejuto, Javier AB We present a qualitative analysis in a phase space to determine the longitudinal equilibrium positions on the planetary stationary orbits by applying an analytical model that considers linear gravitational perturbations. We discuss how these longitudes are related with the orientation of the planetary principal inertia axes with respect to their Prime Meridians, and then we use this determination to derive their positions with respect to the International Celestial Reference Frame. Finally, a numerical analysis of the non-linear effects of the gravitational fields on the equilibrium point locations is developed and their correlation with gravity field anomalies shown. PB Elsevier SN 0273-1177 YR 2018 FD 2018-05 LK https://hdl.handle.net/20.500.14352/105967 UL https://hdl.handle.net/20.500.14352/105967 LA eng NO Romero, P., Barderas, G., & Mejuto, J. Equilibrium positions on stationary orbits and planetary principal inertia axis orientations for the Solar System. Advances in Space Research. 2018; 61(9):2472-2481. DS Docta Complutense RD 18 abr 2025