Results 21 to 30 of about 21,649 (220)

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

The 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, Harrison F. Agrusa, Derek C. Richardson, R. Terik Daly, Oscar Fuentes-Muñoz, Masatoshi Hirabayashi, Patrick Michel, Colby C. Merrill, Ryota Nakano, Andrew F. Cheng, Brent Barbee, Olivier S. Barnouin, Steven R. Chesley, Carolyn M. Ernst, Ioannis Gkolias, Nicholas A. Moskovitz, Shantanu P. Naidu, Petr Pravec, Petr Scheirich, Cristina A. Thomas, Kleomenis Tsiganis, Daniel J. Scheeres   +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

The 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, Bin Li, Haoxuan Jiang, Gang Bao, Jianghui Ji   +4 more
doaj   +1 more source

Dynamics of the Hungaria asteroids [PDF]

Icarus, 2010
To try to understand the dynamical and collisional evolution of the Hungaria asteroids we have built a large catalog of accurate synthetic proper elements. Using the distribution of the Hungaria, in the spaces of proper elements and of proper frequencies, we can study the dynamical boundaries and the internal structure of the Hungaria region, both ...
MILANI COMPARETTI, ANDREA, KNEZEVIC Z, NOVAKOVIC B, CELLINO A.   +3 more
openaire   +2 more sources

Survey of secular resonances in the asteroid belt [PDF]

Serbian Astronomical Journal, 2022
Using a recently introduced synthetic method to compute the asteroid secular frequencies (Knežević and Milani 2019), in this paper we survey the locations of secular resonances in the 9 dynamically distinct zones of the asteroid belt.
Knežević Z.
doaj   +1 more source

Parking a Spacecraft near an Asteroid Pair [PDF]

, 2005
This paper studies the dynamics of a spacecraft moving in the field of a binary asteroid. The asteroid pair is modeled as a rigid body and a sphere moving in a plane, while the spacecraft moves in space under the influence of the gravitational field of
Gabern, Frederic, Koon, Wang S., Marsden, Jerrold E.   +2 more
core   +3 more sources

Dynamics of asteroid systems post-rotational fission

Astronomy & Astrophysics, 2022
Asteroid binaries found among the near-Earth objects are believed to have formed from rotational fission. In this paper, we study the dynamical evolution of asteroid systems the moment after fission. The model considers two bodies the moment after a contact binary separates due to rotational fission.
Alex Ho, Margrethe Wold, Mohammad Poursina, John T. Conway   +3 more
openaire   +3 more sources

Deflecting small asteroids using laser ablation : Deep space navigation and asteroid orbit control for LightTouch2 Mission [PDF]

, 2013
This paper presents a low-cost, low mass, mission design to successfully intercept and deflect a small and faint, 4 m in diameter asteroid. Intended to be launched after 2025, the laser-ablating mission, LightTouch2 will be used to deflect the orbit of ...
Branco, Joao, Garcia Yarnoz, Daniel, Sanchez Cuartielles, Joan-Pau, Vasile, Massimiliano, Vetrisano, Massimo   +4 more
core   +1 more source

Dynamical evolution of cometary asteroids [PDF]

Monthly Notices of the Royal Astronomical Society, 1998
ABSTRA C T We present results from long-term numerical integrations of hypothetical Jupiter-family comets (JFCs) over time-scales in excess of the estimated cometary active lifetime. During inactive periods these bodies could be considered as ‘cometary’ near-Earth objects (NEOs) or ‘cometary asteroids’. The contribution of cometary asteroids to the NEO
N. W. Harris, M. E. Bailey
openaire   +1 more source

Easily retrievable objects among the NEO population [PDF]

, 2013
Asteroids and comets are of strategic importance for science in an effort to understand the formation, evolution and composition of the Solar System. Near-Earth Objects (NEOs) are of particular interest because of their accessibility from Earth, but also
C Simó, C Zagouras, C. R. McInnes, D. García Yárnoz, DL Richardson, DR Adamo, E Belbruno, E Canalias, G Gómez, G Gómez, G Tancredi, H-X Baoyin, J Kawaguchi, J. P. Sanchez, JP Sanchez, KC Howell, KC Howell, LA Kleiman, M Granvik, M Hénon, M Vasile, P Michel, P Veres, PW Chodas, R Brasser, S Greenstreet, SR Chesley, T Kwiatkowski, TL Edward, V Szebehely, WS Koon, Z Hasnain   +31 more
core   +2 more sources

Dynamical lifetimes of asteroids in retrograde orbits [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
The population of known minor bodies in retrograde orbits ($i > 90 ^{\circ}$) that are classified as asteroids is still growing. The aim of our study was to estimate the dynamical lifetimes of these bodies by use of the latest observational data, including astrometry and physical properties.
Kankiewicz, Paweł, Włodarczyk, Ireneusz   +1 more
openaire   +2 more sources