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View article: A catalog of near-IR absolute magnitudes of Solar System small bodies
A catalog of near-IR absolute magnitudes of Solar System small bodies Open
Context . Phase curves of small bodies are useful tools for obtaining their absolute magnitudes and phase coefficients. The absolute magnitude relates to the object’s apparent brightness, while the phase coefficient relates to how the ligh…
View article: Artificial Intelligence in Planetary Science and Astronomy: Applications and Research Potential
Artificial Intelligence in Planetary Science and Astronomy: Applications and Research Potential Open
IntroductionArtificial Intelligence (AI) is one of the most influential fields of the 21st century (Zhang et al., 2021). Rich, E (2019) candidly described it as “the study of how to make computers do things which, at the moment, people do …
View article: Near Infrared Absolute Magnitudes of Asteroids
Near Infrared Absolute Magnitudes of Asteroids Open
Phase curves of small bodies are useful tools to obtain their absolute magnitudes and phasecoefficients. The former relates to the object’s apparent brightness, while the latter relates to howthe light interacts with the surface. Data from…
View article: Vision Transformers for identifying asteroids interacting with secular resonances.
Vision Transformers for identifying asteroids interacting with secular resonances. Open
Asteroid families are groups of asteroids formed by a collision or fission event. Some asteroid families interact with secular resonances. Because of planetary perturbations, the pericenter and nodes of planets and asteroids precess with f…
View article: Europlanet Machine Learning Working Group: a year of progress
Europlanet Machine Learning Working Group: a year of progress Open
The rapid advances in machine learning (ML) present unprecedented opportunities for planetary science. We have established a dedicated working group (WG) focused on the application of ML in this field to harness these technological advance…
View article: The invisible threat: Assessing the collisional hazard posed by the undiscovered Venus co-orbital asteroids
The invisible threat: Assessing the collisional hazard posed by the undiscovered Venus co-orbital asteroids Open
Currently, there are twenty known Venus co-orbital asteroids, but only one has an eccentricity (e) lower than 0.38 (Carruba et al. 2024; Pan & Gallardo 2024 and references therein). This distribution is likely an observational bias, as ast…
View article: 2025 FP4: A New Transient Co-orbital Asteroid of Earth
2025 FP4: A New Transient Co-orbital Asteroid of Earth Open
We report the identification of 2025 FP4, a new co-orbital asteroid of Earth currently in a retrograde satellite orbit. It is expected to remain in this configuration for ∼500 yr and as a co-orbital for 6000 ± 1000 yr. Despite the potentia…
View article: The invisible threat
The invisible threat Open
Context . There are 20 co-orbital asteroids of Venus currently known. Only one of them exhibits an eccentricity below 0.38. This is most likely caused by observational biases since asteroids with higher eccentricities have a higher probabi…
View article: New Transient Co-orbital Asteroids of Venus
New Transient Co-orbital Asteroids of Venus Open
Venus has no known natural satellites but has 5 known co-orbitals. These are objects trapped in a 1:1 mean-motion resonance with Venus. Co-orbital configurations include retrograde satellite orbits (RS), tadpole orbits (T) around the Lagra…
View article: Image Classification of Retrograde Resonance in the Planar Circular Restricted Three-Body Problem
Image Classification of Retrograde Resonance in the Planar Circular Restricted Three-Body Problem Open
. IntroductionThe advancement of computational techniques and methods such as artificial intelligence applied to celestial mechanics, including image classification. These techniques have been applied in the identification of mean motion r…
View article: Deep learning classification of asteroids in s-type secular resonances
Deep learning classification of asteroids in s-type secular resonances Open
Node secular resonances, or s-type secular resonances, occur when the precession frequencies of the node of an asteroid and some planets are commensurable. They are important for changing the proper inclination of asteroids interacting wit…
View article: Digitally filtered resonant arguments for deep learning classification of asteroids in secular resonances
Digitally filtered resonant arguments for deep learning classification of asteroids in secular resonances Open
Node secular resonances, or s-type secular resonances, occur when the precession frequencies of the node of an asteroid and some planets are in commensurability. They are important for changing the proper inclination of asteroids interacti…
View article: On the identification of the first two young asteroid families in g-type non-linear secular resonances
On the identification of the first two young asteroid families in g-type non-linear secular resonances Open
Linear secular resonances happen when there is a commensurability between the precession frequency of the pericenter, g, or longitude of the node, s, of an asteroid and a planet. Non-linear resonances are higher order combinations of these…
View article: Main belt asteroids taxonomical information from dark energy survey data
Main belt asteroids taxonomical information from dark energy survey data Open
While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more than 100 000 objects, but many aster…
View article: Main belt asteroids taxonomical information from Dark Energy Survey data
Main belt asteroids taxonomical information from Dark Energy Survey data Open
While proper orbital elements are currently available for more than 1 million asteroids, taxonomical information is still lagging behind. Surveys like SDSS-MOC4 provided preliminary information for more than 100,000 objects, but many aster…
View article: Machine learning to predict the solar flux and geomagnetic indices to model density and Drag in Satellites
Machine learning to predict the solar flux and geomagnetic indices to model density and Drag in Satellites Open
In recent years (2000-2021), human-space activities have been increasing faster than ever. More than 36000 Earth' orbiting objects, all larger than 10 cm, in orbit around the Earth, are currently tracked by the European Space Agency (ESA).…
View article: Deep learning classification of asteroids in g-type secular resonances
Deep learning classification of asteroids in g-type secular resonances Open
Linear secular resonances happen when there is a commensurability between the precession frequency of the pericenter, g, or longitude of the node, s, of an asteroid and a planet. Non-linear resonances are higherorder combinations of these …
View article: Imbalanced classification applied to asteroid resonant dynamics
Imbalanced classification applied to asteroid resonant dynamics Open
Introduction: Machine learning (ML) applications for studying asteroid resonant dynamics are a relatively new field of study. Results from several different approaches are currently available for asteroids interacting with the z 2 , z 1 , …
View article: Artificial Neural Network classification of asteroids in the M1:2 mean-motion resonance with Mars.
Artificial Neural Network classification of asteroids in the M1:2 mean-motion resonance with Mars. Open
<p><strong>1. Introduction</strong></p> <p><img src="" alt="" width="1010" height="588" /></p> <p>During the last five years, machine learning and deep…
View article: Identifying the population of stable &#957;6 resonant asteroids using large databases
Identifying the population of stable ν6 resonant asteroids using large databases Open
<p><strong>1. Introduction</strong></p> <p><br />Linear secular resonances occur when there is a commensurability between the frequency of precession of an asteroid perihelion, g, or node, s, and that of…
View article: Genetic optimization of asteroid families’ membership
Genetic optimization of asteroid families’ membership Open
Asteroid families are groups of asteroids with a common origin, such as prior collisions or the parent body’s rotational fission. In proper [ a , e , sin( i )] element domains, they are generally observed using the hierarchical clustering …
View article: Optimization of Artificial Neural Networks models applied to the identification of images of asteroids' resonant arguments
Optimization of Artificial Neural Networks models applied to the identification of images of asteroids' resonant arguments Open
The asteroidal main belt is crossed by a web of mean-motion and secular resonances, that occur when there is a commensurability between fundamental frequencies of the asteroids and planets. Traditionally, these objects were identified by v…
View article: Identifying the population of stable ν6 resonant asteroids using large data bases
Identifying the population of stable ν6 resonant asteroids using large data bases Open
Large observational surveys, like those that will be conducted at the Vera C. Rubin Observatory, are expected to discover up to one million new asteroids in the first year of operation. This will more than double the data base of known ast…
View article: Predicting asteroid lightcurves using ARIMA models
Predicting asteroid lightcurves using ARIMA models Open
The asteroids’ brightness is not generally constant, but presents time variations that depend on the asteroid shape, albedo, rotation period, and other factors. In 1901, Von Oppolzer first noted changes in the brightness of (433) Ero…