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
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Asteroid space distribution near the Earth's orbit at different seasons
Вісник Астрономічної школи, 2012 From the MPC catalogue There were selected asteroid which can approach to the Earth (NEAs) with perihelion distances q < 1.3 AU. The total asteroid quantity was 7800 by the beginning of 2012.
A. M. Kazantsev, I. V Serdyukov
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Stereophotoclinometry for OSIRIS-REx Spacecraft Navigation
The Planetary Science Journal, 2023 We summarize a decade of effort by the Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) mission team to build up the unique capabilities, processes, and procedures required to accomplish the ...
Coralie D. Adam +20 more
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A record of planet migration in the Main Asteroid Belt [PDF]
Nature 457:1109-1111,2009, 2009 The main asteroid belt lies between the orbits of Mars and Jupiter, but the region is not uniformly filled with asteroids. There are gaps, known as the Kirkwood gaps, in the asteroid distribution in distinct locations that are associated with orbital resonances with the giant planets; asteroids placed in these locations follow chaotic orbits and escape
arxiv +1 more source
V-type candidates and Vesta family asteroids in the Moving Objects VISTA (MOVIS) Catalogue [PDF]
A&A 600, A126 (2017), 2017 Basaltic asteroids (V-types) are believed to be fragments of large differentiated bodies. The majority of them are found in the inner part of the asteroid belt, and are current or past members of the Vesta family. Recently, some V-type asteroids have been discovered far from the Vesta family supporting the hypothesis of the presence of multiple ...
arxiv +1 more source
Close encounters of Near Earth Objects with large asteroids [PDF]
, 2014 Close encounters of Near Earth Objects (NEOs) with large asteroids are a possible source of systematic errors in trajectory propagations and asteroid mitigation. It is, thus, necessary to identify those large asteroids that have to be considered as perturbers in NEO orbit modeling.
arxiv +1 more source
Thermophysical Model Development for Hera Mission to Simulate Non-Gravitational Acceleration on Binary Asteroid [PDF]
arXiv, 2023 The surface temperature of an asteroid is fundamental information for the design of an exploration mission and the interpretation of scientific observations. In addition, the thermal radiation of the asteroid causes a non-gravitational acceleration that induces secular changes in its orbit and spin.
arxiv
AVAST Survey 0.4-1.0 μm Spectroscopy of Igneous Asteroids in the Inner and Middle Main Belt [PDF]
, 2012 We present the spectra of 60 asteroids, including 47 V-types observed during the first phase of the Adler V-Type Asteroid (AVAST) Survey. SDSS photometry was used to select candidate V-type asteroids for follow up by nature of their very blue $i-z$ color.
arxiv +1 more source
Using neural networks to model Main Belt Asteroid albedos as a function of their proper orbital elements [PDF]
, 2023 Asteroid diameters are traditionally difficult to estimate. When a direct measurement of the diameter cannot be made through either occultation or direct radar observation, the most common method is to approximate the diameter from infrared observations.
arxiv +1 more source
TUMBUKAN TAK-ELASTIK PARTIKEL SEBAGAI MODEL TERBENTUKNYA ASTEROID
Spektra: Jurnal Fisika dan Aplikasinya, 2017 Abstrak Suatu asteroid diduga merupakan kumpulan partikel yang bertumbukan tak-elastik sehingga membentuk suatu agregat. Ikatan yang terjadi antar partikel diasumsikan hanyalah disebabkan gaya gravitasi.
Sparisoma Viridi, Budi Dermawan
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