Results 111 to 120 of about 394,300 (243)

Encounter Circumstances of Asteroid 99942 Apophis with the Catalog of Known Asteroids

open access: yesThe Planetary Science Journal
Asteroid 99942 Apophis will pass near Earth in 2029 April. Expected to miss our planet by a safe margin, that could change if Apophis's path were perturbed by a collision with another asteroid in the interim.
Paul Wiegert, Benjamin Hyatt
doaj   +1 more source

Impact dynamics of the L chondrites' parent asteroid

open access: green, 2022
Marine Ciocco   +7 more
openalex   +2 more sources

Dimorphos’s Orbit Period Change and Attitude Perturbation due to Its Reshaping after the DART Impact

open access: yesThe Planetary Science Journal
On 2022 September 26 (UTC), NASA's Double Asteroid Redirection Test (DART) mission achieved a successful impact on Dimorphos, the secondary component of the near-Earth binary asteroid system (65803) Didymos. Subsequent ground-based observations suggest a
Ryota Nakano   +19 more
doaj   +1 more source

Precise Orbit Determination of Mars-crossing Asteroids

open access: yesThe Astronomical Journal
This study investigates the orbit determination of the Mars-crossing asteroids (MCAs) with a focus on the possibility of detecting their Yarkovsky signals. We analyze the influences of force model uncertainties on MCA orbits, including the uncertainty of
Xin Liu   +6 more
doaj   +1 more source

The orbital dynamics of asteroid 469219 Kamo’oalewa

open access: gold, 2020
M Rezky, Endang Soegiartini
openalex   +1 more source

Dynamic Three-dimensional Simulation of Surface Charging on Rotating Asteroids [PDF]

open access: yesarXiv
Surface charging phenomenon of asteroids, mainly resulting from solar wind plasma and solar radiation, has been studied extensively. However, the influence of asteroid's rotation on surface charging has yet to be fully understood. Here neural network is established to replace numerical integration, improving the efficiency of dynamic three-dimensional ...
arxiv  

Pre-impact Thermophysical Properties and the Yarkovsky Effect of NASA DART Target (65803) Didymos

open access: yesThe Planetary Science Journal
The NASA Double Asteroid Redirection Test (DART) spacecraft impacted the secondary body of the binary asteroid (65803) Didymos on 2022 September 26 and altered its orbit about the primary body.
Benjamin Rozitis   +10 more
doaj   +1 more source

Direct N-body Simulations of Satellite Formation around Small Asteroids: Insights from DART’s Encounter with the Didymos System

open access: yesThe Planetary Science Journal
We explore binary asteroid formation by spin-up and rotational disruption considering the NASA DART mission's encounter with the Didymos–Dimorphos binary, which was the first small binary visited by a spacecraft.
Harrison F. Agrusa   +20 more
doaj   +1 more source

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