Results 1 to 10 of about 1,071 (195)

Morphology of ejecta features from the impact on asteroid Dimorphos [PDF]

open access: yesNature Communications
Hypervelocity impacts play a significant role in the evolution of asteroids, causing material to be ejected and partially reaccreted. However, the dynamics and evolution of ejected material in a binary asteroid system have never been observed directly ...
Fabio Ferrari   +32 more
doaj   +2 more sources

A Numerical Research on a New Type of Asteroid Flexible Probe

open access: yesIEEE Access, 2021
The asteroid landing detection is of great scientific and economic value. The traditional landing rigid probe is prone to rebound and escape due to the asteroid’s weak gravity and rugged terrain.
Weifeng Yan, Hexi Baoyin
doaj   +1 more source

Asteroids and Their Mathematical Methods

open access: yesMathematics, 2022
In this paper, the basic classification of asteroids and the history and current situation of asteroid exploration are introduced. Furthermore, some recent research progress on the orbital dynamics of asteroids, including models of the gravitational ...
Yu Jiang   +4 more
doaj   +1 more source

Machine learning applied to asteroid dynamics

open access: yesCelestial Mechanics and Dynamical Astronomy, 2022
Machine Learning (ML) is the branch of computer science that studies computer algorithms that can learn from data. It is mainly divided into supervised learning, where the computer is presented with examples of entries, and the goal is to learn a general rule that maps inputs to outputs, and unsupervised learning, where no label is provided to the ...
V. Carruba   +4 more
openaire   +3 more sources

Inelastic Collision Influencing the Rotational Dynamics of a Non-Rigid Asteroid (of Rubble Pile Type)

open access: yesMathematics, 2023
We have considered here a novel particular model for dynamics of a non-rigid asteroid rotation, assuming the added mass model instead of the concept of Viscoelastic Oblate Rotators to describe the physically reasonable response of a ‘rubble pile ...
Sergey Ershkov, Dmytro Leshchenko
doaj   +1 more source

Characterization of the Ejecta from the NASA/DART Impact on Dimorphos: Observations and Monte Carlo Models

open access: yesThe Planetary Science Journal, 2023
The NASA Double Asteroid Redirection Test (DART) spacecraft successfully crashed on Dimorphos, the secondary component of the binary (65803) Didymos system. Following the impact, a large dust cloud was released, and a long-lasting dust tail developed. We
Fernando Moreno   +28 more
doaj   +1 more source

Spacecraft swarm dynamics and control about asteroids [PDF]

open access: yesAdvances in Space Research, 2021
This paper presents a novel methodology to control spacecraft swarms about singleasteroids with arbitrary gravitational potential coefficients. This approach enablesthe use of small, autonomous swarm spacecraft in conjunction with a mothership,reducing the need for the Deep Space Network and increasing safety in future as-teroid missions.
Lippe, Corinne, D'Amico, Simone
openaire   +2 more sources

The Perturbed Full Two-body Problem: Application to Post-DART Didymos

open access: yesThe Planetary Science Journal, 2023
With the successful impact of the NASA Double Asteroid Redirection Test (DART) spacecraft in the Didymos–Dimorphos binary asteroid system, we provide an initial analysis of the post-impact perturbed binary asteroid dynamics.
Alex J. Meyer   +21 more
doaj   +1 more source

Peculiar Orbital Characteristics of Earth Quasi-Satellite 469219 Kamo‘oalewa: Implications for the Yarkovsky Detection and Orbital Uncertainty Propagation

open access: yesThe Astronomical Journal, 2023
469219 Kamo‘oalewa is selected as one of the primary targets of Tianwen-2 mission, which is currently believed to be the most stable quasi-satellite of Earth. Here we derive a weak detection of the Yarkovsky effect for Kamo‘oalewa, giving A _2 = (−1.075 ±
Shoucun Hu   +4 more
doaj   +1 more source

ASTEROID SECULAR DYNAMICS: CERES’ FINGERPRINT IDENTIFIED [PDF]

open access: yesThe Astrophysical Journal, 2015
Accepted for publication in the ...
Bojan Novaković   +3 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy