The resonance perturbations of the (39991) Iochroma family

TL;DR

This paper investigates the orbital dynamics of the young Iochroma asteroid family, focusing on resonance locations and boundary determination, and identifies a new potential family member.

Contribution

It precisely locates key three-body resonances affecting the Iochroma family and provides orbital element approximations for future dynamical studies.

Findings

Iochroma family lies between the 3J-1M-3 and 5J 3S-2 resonances.

Resonance positions and boundaries are determined.

A new candidate member, asteroid 2016 UT3, is reported.

Abstract

The dynamics of a very young compact asteroid cluster associated with asteroid 39991 Iochroma is studied. It is shown that Iochroma family lies between the two three body resonances 3J-1M-3 and 5J 3S-2. In this paper we have determined the position of these resonances and the boundary between them. We have included the orbital elements approximations which may be useful in the future study of the dynamics of the family. Additionally, we report on a new candidate member, namely asteroid 2016 UT3.