Results 1 to 10 of about 3,200,895 (194)
Semi-analytical Ansatz for Approximating Dynamics of Asteroid Rotation Approaching Planet [PDF]
Journal of Applied and Computational MechanicsThe main motivation of this research is the analytical exploration of the dynamics of asteroid rotation approaching planet, in view of future approach Apophis 2029 to Earth.
Sergey Ershkov
doaj +1 more source
An Efficient Numerical Approach to Modeling the Effects of Particle Shape on Rubble-pile Dynamics
The Planetary Science Journal, 2023 We present an approach for the inclusion of nonspherical constituents in high-resolution N -body discrete element method (DEM) simulations. We use aggregates composed of bonded spheres to model nonspherical components.
Julian C. Marohnic +4 more
doaj +1 more source
Origin and Dynamical Evolution of the Asteroid Belt
, 2022 The asteroid belt was dynamically shaped during and after planet formation. Despite representing a broad ring of stable orbits, the belt contains less than one one-thousandth of an Earth mass. The asteroid orbits are dynamically excited with a wide range in eccentricity and inclination and their compositions are diverse, with a general trend toward dry
Raymond, Sean N., Nesvorny, David
openaire +2 more sources
Imbalanced classification applied to asteroid resonant dynamics
Frontiers in Astronomy and Space Sciences, 2023 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 z2, z1, M1:2, and ν6 ...
V. Carruba +5 more
doaj +1 more source
(523599) 2003 RM: The Asteroid that Wanted to be a Comet
The Planetary Science Journal, 2023 We report a statistically significant detection of nongravitational acceleration on the subkilometer near-Earth asteroid (523599) 2003 RM. Due to its orbit, 2003 RM experiences favorable observing apparitions every 5 yr.
Davide Farnocchia +13 more
doaj +1 more source
Radar contributions to asteroid astrometry and dynamics [PDF]
CELESTIAL MECHANICS AND DYNAMICAL ASTRONOMY, 1997 Almost every radar observation of asteroids has measured some characteristics of the distribution of echo power in time delay (range) and Doppler frequency (radial velocity). Such measurements, which are orthogonal to optical plane-of-sky angular astrometry, are also done in the well-known, “absolute” reference frame of the planetary ephemerides, often
openaire +1 more source
Identification and Dynamical Properties of Asteroid Families [PDF]
, 2015 Asteroids formed in a dynamically quiescent disk but their orbits became gravitationally stirred enough by Jupiter to lead to high-speed collisions. As a result, many dozen large asteroids have been disrupted by impacts over the age of the Solar System, producing groups of fragments known as asteroid families.
Nesvorný, David +2 more
openaire +3 more sources
On the Fate of Slow Boulders Ejected after DART Impact on Dimorphos
The Planetary Science JournalOn 2022 September 26 23:14 UT, the NASA Double Asteroid Redirection Test spacecraft successfully impacted Dimorphos, the secondary component of the binary (65803) Didymos system, demonstrating asteroid orbit deflection for the first time.
Fernando Moreno +2 more
doaj +1 more source
Colors of dynamically associated asteroid pairs [PDF]
Icarus, 2012 22 pages, 7 figures, Accepted to ...
openaire +2 more sources
Simulating the (99942) Apophis Earth Flyby Using a Contact Binary Model
The Planetary Science JournalThis paper investigates the mass shifts of asteroid (99942) Apophis during its 2029 close encounter with Earth, using the contact dynamics method, a type of discrete element method. Unlike previous analyses, we model the asteroid as a contact binary body
Hai-Shuo Wang +2 more
doaj +1 more source