45 citations · 218 across the 26 of their papers we have counts for
22 papers · 1 filter
Consistency between dynamical modeling and photometrically derived masses of fireballs
Eloy Peña-Asensio, Maria Gritsevich
We present a three-point inverse solution for reconstructing meteoroid deceleration and mass-loss histories from sparse observations constrained only by the entry, peak-brightness,…
The Distribution of Earth-Impacting Interstellar Objects
Darryl Z. Seligman, Dušan Marčeta, Eloy Peña-Asensio
In this paper we calculate the expected orbital elements, radiants, and velocities of Earth-impacting interstellar objects. We generate a synthetic population of inte…
The interstellar flux gap: From dust to kilometer-scale objects
Eloy Peña-Asensio, Darryl Z. Seligman
Context. Three kilometer-sized interstellar objects (ISOs) have been detected transiting the Solar System, and spacecraft have directly measured micrometer-scale interstellar dust…
Century-Scale Effect of Climate Change on Meteorite Falls
Eloy Peña-Asensio, Denis Vida, Ingrid Cnossen +1
Climate change is inducing a global atmospheric contraction above the tropopause (~10 km), leading to systematic decrease in neutral air density. The impact of climate change on sm…
Error dependencies in the space-based CNEOS fireball database
Eloy Peña-Asensio, Hector Socas-Navarro, Darryl Z. Seligman
We evaluate the reliability of CNEOS-derived ephemerides of fireball events given the absence of the underlying data. We analyzed 18 events that have both (i) sufficient satellite…
On the spatiotemporal coincidence of meteorites in recent fall search campaigns
P. Grèbol-Tomàs, E. Peña-Asensio, J. M. Trigo-Rodríguez +1
The meteoritical community widely assumes that the probability of finding two meteorites from different falls laying in close proximity is negligible. However, recent studies have…
Discovery and Preliminary Characterization of a Third Interstellar Object: 3I/ATLAS
Darryl Z. Seligman, Marco Micheli, Davide Farnocchia +44
We report initial observations aimed at the characterization of a third interstellar object. This object, 3I/ATLAS or C/2025 N1 (ATLAS), was discovered on 2025 July 1 UT and has an…
Meteoroid stream identification with HDBSCAN unsupervised clustering algorithm
Eloy Peña-Asensio, Fabio Ferrari
Accurate identification of meteoroid streams is central to understanding their origins and evolution. However, overlapping clusters and background noise hinder classification, an i…
The Feasibility of a Spacecraft Flyby with the Third Interstellar Object 3I/ATLAS from Earth or Mars
Atsuhiro Yaginuma, Tessa Frincke, Darryl Z. Seligman +5
We investigate the feasibility of a spacecraft mission to conduct a flyby of 3I/ATLAS, the third macroscopic interstellar object discovered on July 1 2025, as it traverses the Sola…
Inferring Fireball Velocity Profiles and Characteristic Parameters of Meteoroids from Incomplete Datasets
Eloy Peña-Asensio, Maria Gritsevich
Extracting additional information from old or incomplete fireball datasets remains a challenge. To address missing point-by-point observations, we introduce a method for estimating…
Multi-parameter constraints on empirical infrasound period-yield relations for bolides and implications for planetary defense
Elizabeth A. Silber, Josep M. Trigo-Rodríguez, Iyare Oseghae +18
How effective are methods for estimating bolide energies from infrasound signal period-yield relationships? A single global period-energy relation can obscure significant variabili…
Mechanical softening and enhanced elasticity of lunar olivine probed via nanoindentation and high-pressure X-ray diffraction measurements
P. Grèbol-Tomàs, J. Ibáñez-Insa, J. M. Trigo-Rodríguez +10
The mechanical properties of minerals in planetary materials are not only interesting from a fundamental point of view but also critical to the development of future space missions…
Delivery of DART Impact Ejecta to Mars and Earth: Opportunity for Meteor Observations
Eloy Peña-Asensio, Michael Küppers, Josep M. Trigo-Rodríguez +1
NASA's DART and ESA's Hera missions offer a unique opportunity to investigate the delivery of impact ejecta to other celestial bodies. We performed ejecta dynamical simulations usi…
Evaluating potential landing sites for the Artemis III mission using a multi-criteria decision making approach
Eloy Peña-Asensio, Álvaro-Steve Neira-Acosta, Juan Miguel Sánchez-Lozano
The selection of a landing site within the Artemis Exploration Zone (AEZ) involves multiple factors and presents a complex problem. This study evaluates potential landing sites for…
The 18 May 2024 Iberian superbolide from a sunskirting orbit: USG space sensors and ground-based independent observations
Eloy Peña-Asensio, Pau Grèbol-Tomàs, Josep M. Trigo-Rodríguez +2
On 18 May 2024, a superbolide traversed the western part of the Iberian Peninsula, culminating its flight over the Atlantic Ocean and generating significant media attention. This e…
Oort cloud perturbations as a source of hyperbolic Earth impactors
Eloy Peña-Asensio, Jaakko Visuri, Josep M. Trigo-Rodríguez +4
The observation of interstellar objects 1I/'Oumuamua and 2I/Borisov suggests the existence of a larger population of smaller projectiles that impact our planet with unbound orbits.…
Deep machine learning for meteor monitoring: advances with transfer learning and gradient-weighted class activation mapping
Eloy Peña-Asensio, Josep M. Trigo-Rodríguez, Pau Grèbol-Tomàs +2
In recent decades, the use of optical detection systems for meteor studies has increased dramatically, resulting in huge amounts of data being analyzed. Automated meteor detection…
Identifying meteorite droppers among the population of bright 'sporadic' bolides imaged by the Spanish Meteor Network during the spring of 2022
Eloy Peña-Asensio, Josep M. Trigo-Rodríguez, Albert Rimola +2
The extraordinary weather conditions available between February and March 2022 over Spain have allowed us to analyze the brightest fireballs recorded by the monitoring stations of…
Orbital characterization of superbolides observed from space: dynamical association with near-Earth objects, meteoroid streams and identification of hyperbolic meteoroids
E. Peña-Asensio, J. M. Trigo-Rodríguez, A. Rimola
There is an unceasing incoming flux of extraterrestrial materials reaching the Earth's atmosphere. Some of these objects produce luminous columns when they ablate during the hypers…
Using fireball networks to track more frequent reentries: Falcon 9 upper stage orbit determination from video recordings
Eloy Peña-Asensio, Josep M. Trigo-Rodríguez, Marco Langbroek +2
On February 16, 2021, an artificial object was recorded by the Spanish Meteor Network (SPMN) moving slowly over the Mediterranean. From the astrometric measurements, we identify th…
Accurate 3D fireball trajectory and orbit calculation using the 3D-FireTOC automatic Python code
Eloy Peña-Asensio, Josep Maria Trigo-Rodríguez, Maria Gritsevich +1
The disruption of asteroids and comets produces cm-sized meteoroids that end up impacting the Earth's atmosphere and producing bright fireballs that might have associated shock wav…
Luminous efficiency based on FRIPON meteors
Esther Drolshagen, Theresa Ott, Detlef Koschny +36
In meteor physics the luminous efficiency is used to convert the meteor's magnitude to the corresponding meteoroid's mass. However, lack of sufficiently accurate verification m…