Planetary Science Directorate


Upcoming SwRI Boulder Colloquia

Colloquia are normally on Tuesdays at 11:00 am in the 4th-floor conference room, except as indicated below in bold text.
Show previous colloquia

For questions or suggestions for speakers, please contact the SwRI colloquium organizers:
Hannah Kaplan, 720-208-7208 or kaplan(at)
Derek Lamb, 720-208-7207 or derek(at)
Katie Primm, 720-240-0124 or kprimm(at)
Raluca Rufu, 303-226-0879 or raluca(at)
Julien Salmon, 720-208-7203 or julien(at)
Kelsi Singer, 303-226-5910 or ksinger(at)

To be added to the SwRI Boulder Colloquia email list, please contact Kelsi Singer, ksinger(at)

Tue Jun 25, 2019
In 5th-floor conference room
11:00 am Diogo Merguizo Sanchez Instituto Nacional de Pesquisas Espaciais - INPE On the applications of perturbation maps
Abstract: Perturbation maps are grids of initial conditions built with the method of the integral of the disturbing accelerations, or simply PI Method. Each point in the map shows the value of the PI Method for a given initial condition. There are four types of maps which reveal different aspects of the perturbations that act over a particle around a central body. For example, the perturbation maps can be used to measure the relevance of a perturbation effect on a system. They also can be used to assess the stability of a particle in a system as well as how much the particle deviates from a reference orbit. Therefore, perturbation maps can be used to study the dynamics of natural and artificial bodies. This presentation will focus on the application of the perturbation maps on some systems, such as the dynamics of the Haumea's ring, artificial satellites around the Earth, and a spacecraft in the 2001 SN263 system.