Himália: Determinação da órbita do maior satélite irregular de Júpiter

Abstract

This work presents a study focused on improving the orbital determination of Himália, the largest irregular satellite of Jupiter, through numerical integrations and statistical analysis of observational data collected between 1886 and 2022. The adopted approach initially considers equal weights for all observations, aiming to identify discrepancies and prepare the dataset for more refined future processing. The application of the initial part of this methodology resulted in a consistent preliminary orbit, with potential to enhance future predictions. The results demonstrate that careful selection and differentiated statistical treatment of the observations positively impact orbital accuracy, highlighting the effectiveness of the developed method.