Numerical integration and analysis of mars orbital dynamics
Jianguo Yan
Abstract
Introduction:
The high-precision numerical ephemeris of Mars is important for its mission planning, spacecraft navigation, and solar system dynamics studies.
Methods:
This study systematically compares the dynamical models employed in the DE441, EPM2021, INPOP21a, and PETREL19 ephemerides and evaluates the contributions of the principal perturbation forces to Mars orbit.
Results:
Over a 30-year integration span, the effects of solar oblateness and the Lense-Thirring relativistic...