JuliaCon 2023

NEOs.jl: a jet transport-based package for Near-Earth asteroids
07-28, 16:30–17:00 (US/Eastern), 32-144

NEOs.jl is an open source Near Earth Object orbit determination software package in the Julia programming language. NEOs.jl features exploitation of high-order automatic differentiation techniques, known as jet transport, in order to quantify orbital uncertainties in a versatile, semi-analytical manner. Using NEOs.jl we have estimated the Yarkovsky acceleration acting on the potentially hazardous asteroid Apophis and have ruled out potential impacts on 2036 and 2068.


NEOs.jl is an open source Near Earth Object orbit determination software package in the Julia programming language. It enables high-accuracy orbit determination for near-Earth asteroids and comets from optical and radar astrometry. NEOs.jl features exploitation of high-order automatic differentiation techniques, known as jet transport, in order to quantify orbital uncertainties in a versatile, semi-analytical manner. The optical astrometry error model incorporates state-of-the-art dynamical and observational models, and accounts for biases present in star catalogs, as well as other sources of systematic errors via an appropriate weighting scheme; this considerations are important when dealing with high-precision orbit determinaiton. As part of the development of NEOs.jl, we also implemented a Julia package with our own planetary ephemeris integrator, PlanetaryEphemeris.jl, based on the DE430 planetary and lunar ephemeris dynamical model produced by the Jet Propulsion Laboratory. Using NEOs.jl we have estimated the Yarkovsky acceleration acting on asteroid Apophis and have ruled out potential impacts on 2036 and 2068. These results were published in the Communications Earth & Environment journal: https://www.nature.com/articles/s43247-021-00337-x. This is joint work with Dr. Luis Benet (ICF-UNAM) and Luis Eduardo Ramírez Montoya (FC-UNAM).

I currently work as a Flight Dynamics Engineer at the European Space Operations Center in Darmstadt, Germany. As part of my PhD research at Mexico National Autonomous University, I developed TaylorIntegration.jl, in collaboration with Dr. Luis Benet. I enjoy researching asteroid and comet dynamics, high-accuracy orbit determination, astrodynamics and Taylor-mode automatic differentiation.

I am Associate Professor at the Instituto de Ciencias Físicas of the Universidad Nacional Autónoma de México (UNAM). I am interested in Random Matrix Theory, quantum chaos, interacting quantum many-body systems, ergodicity, hamiltonian dynamics, chaotic scattering, classical and quantum transport, disordered systems, billiards, structure and stability of narrow planetary rings, Solar System dynamics, dynamics of minor planetary objects (NEOs and NEAs), precise and mathematically rigorous numerical calculations. I've been using Julia as developer since 2013. More info: https://lbenet.github.io/