Improving the asteroid perturbations modelling in planetary ephemerides
Abstract
The objective of this study is to investigate the advantages of modeling the large numbers of weakly perturbing asteroids present in the main belt by a solid ring. With a simple model we perform various Monte Carlo experiments and show that a ring is indeed able to represent a global effect. We estimate at 200 the number of asteroids that need to be eliminated before the global effect becomes dominant and calculate with the Monte Carlo method an independent estimate of the ring's mass.
- Publication:
-
Journées Systèmes de Référence Spatio-temporels 2008
- Pub Date:
- September 2009
- Bibcode:
- 2009jsrs.conf...84K
- Keywords:
-
- Earth rotation;
- reference systems;
- relativity;
- time;
- ephemerides