Journal ArticleDOI
Physical modeling of near-Earth Asteroid (29075) 1950 DA
Michael W. Busch,Jon D. Giorgini,Steven J. Ostro,Lance A. M. Benner,Raymond F. Jurgens,Randy Rose,Michael D. Hicks,Petr Pravec,Peter Kusnirak,Michael J. Ireland,Daniel J. Scheeres,Stephen B. Broschart,Christopher Magri,Michael C. Nolan,A. A. Hine,Jean-Luc Margot +15 more
Reads0
Chats0
TLDR
Giorgini et al. as discussed by the authors estimated the shape, spin state, and surface structure of the near-Earth asteroid (29075) 1950 DA using radar data and optical lightcurves.About:
This article is published in Icarus.The article was published on 2007-10-01. It has received 42 citations till now. The article focuses on the topics: Near-Earth object & Asteroid.read more
Citations
More filters
Journal ArticleDOI
Hayabusa2 arrives at the carbonaceous asteroid 162173 Ryugu—A spinning top–shaped rubble pile
Sei-ichiro Watanabe,Sei-ichiro Watanabe,Masatoshi Hirabayashi,Naru Hirata,Na. Hirata,Rina Noguchi,Yuri Shimaki,H. Ikeda,Eri Tatsumi,Makoto Yoshikawa,Makoto Yoshikawa,Shota Kikuchi,Hikaru Yabuta,Tomoki Nakamura,Shogo Tachibana,Shogo Tachibana,Yoshiaki Ishihara,Tomokatsu Morota,Kohei Kitazato,Naoya Sakatani,Koji Matsumoto,Koji Wada,Hiroki Senshu,C. Honda,Tatsuhiro Michikami,Hiroshi Takeuchi,Hiroshi Takeuchi,Toru Kouyama,R. Honda,Shingo Kameda,Tetsuharu Fuse,Hideaki Miyamoto,Goro Komatsu,S. Sugita,Tatsuaki Okada,Tatsuaki Okada,Noriyuki Namiki,Masahiko Arakawa,Masateru Ishiguro,Masanao Abe,Masanao Abe,Robert Gaskell,Eric Palmer,Olivier S. Barnouin,Patrick Michel,A. S. French,Jay W. McMahon,Daniel J. Scheeres,Paul A. Abell,Yukio Yamamoto,Yukio Yamamoto,Satoshi Tanaka,Satoshi Tanaka,Kei Shirai,Moe Matsuoka,Manabu Yamada,Y. Yokota,Y. Yokota,H. Suzuki,Kosuke Yoshioka,Yuichiro Cho,Naoki Nishikawa,T. Sugiyama,Hideaki Kikuchi,Ryodo Hemmi,Tomohiro Yamaguchi,Naoko Ogawa,Go Ono,Yuya Mimasu,Kent Yoshikawa,T. Takahashi,Yuto Takei,Atsushi Fujii,Chikako Hirose,Takahiro Iwata,Takahiro Iwata,Masahiro Hayakawa,Satoshi Hosoda,Osamu Mori,Hirotaka Sawada,Takanobu Shimada,Stefania Soldini,Hajime Yano,Hajime Yano,Ryudo Tsukizaki,M. Ozaki,M. Ozaki,Yuichi Iijima,K. Ogawa,Masaki Fujimoto,T. M. Ho,Aurelie Moussi,Ralf Jaumann,J. P. Bibring,Christian Krause,Fuyuto Terui,Takanao Saiki,Satoru Nakazawa,Yoshiyuki Tsuda,Yoshiyuki Tsuda +99 more
TL;DR: The Hayabusa2 spacecraft measured the mass, size, shape, density, and spin rate of asteroid Ryugu, showing that it is a porous rubble pile, and observations of Ryugu's shape, mass, and geomorphology suggest that Ryugu was reshaped by centrifugally induced deformation during a period of rapid rotation.
Journal ArticleDOI
Cohesive forces prevent the rotational breakup of rubble-pile asteroid (29075) 1950 DA
TL;DR: It is reported that the kilometre-sized asteroid (29075) 1950 DA is a rubble pile that is rotating faster than is allowed by gravity and friction and that the strengths of the forces are comparable to, though somewhat less than, the forces found between the grains of lunar regolith.
Journal ArticleDOI
Near Earth Asteroids with measurable Yarkovsky effect
Davide Farnocchia,Steven R. Chesley,David Vokrouhlický,Andrea Milani,Federica Spoto,William F. Bottke +5 more
TL;DR: In this article, the Yarkovsky effect among near Earth asteroids (NEAs) was investigated by measuring the YARKovsky-related orbital drift from the orbital fit using a high precision dynamical model, including the Newtonian attraction of 16 massive asteroids and the planetary relativistic terms.
Journal ArticleDOI
Near-Earth asteroid surface roughness depends on compositional class
Lance A. M. Benner,Steven J. Ostro,C. Magri,Michael C. Nolan,Ellen S. Howell,Jon D. Giorgini,Raymond F. Jurgens,Jean-Luc Margot,Patrick A. Taylor,Michael W. Busch,Michael K. Shepard +10 more
TL;DR: In this article, a very strong correlation of circular polarization ratio with visible-infrared taxonomic class, establishing distinct differences in the centimeter-to-several-decimeter structural complexity of objects in different spectral classes.
Journal ArticleDOI
Stress and Failure Analysis of Rapidly Rotating Asteroid (29075) 1950 DA
TL;DR: In this paper, a finite element model was developed to identify the deformation process of 1950 DA when its constant cohesion reaches the lowest value that keeps its current shape, and it was shown that to avoid structural failure the internal core requires a cohesive strength of at least 75-85 Pa.
References
More filters
Journal ArticleDOI
Radiative Spin-up and Spin-down of Small Asteroids
TL;DR: The Yarkovsky-O'Keefe-Radzievskii-Paddack (YORP) effect as mentioned in this paper may spin up or spin down 5-km-radius asteroids on a 108-year timescale.
Journal ArticleDOI
Optimization Methods for Asteroid Lightcurve Inversion. II. The Complete Inverse Problem
TL;DR: In this paper, a simple empirical scattering law is proposed to estimate the rotation period, pole direction, and scattering parameters of an asteroid from its lightcurves simultaneously with the shape.
Journal ArticleDOI
Stony meteorite porosities and densities: A review of the data through 2001
TL;DR: In this paper, the porosity and density of stony meteorites were analyzed using a variety of techniques, and the average porosity for most meteorite classes were around 10%, though individual samples can range as high as 30% porosity.
Journal ArticleDOI
Radar Observations of Asteroid 216 Kleopatra
Steven J. Ostro,R. Scott,Hudson,Michael C. Nolan,Jean-Luc Margot,Daniel J. Scheeres,Donald B. Campbell,Christopher Magri,Jon D. Giorgini,Donald K. Yeomans +9 more
TL;DR: Radar observations of the main-belt, M-class asteroid 216 Kleopatra reveal a dumbbell-shaped object with overall dimensions with a regolith having a metallic composition and a porosity comparable to that of lunar soil.
Journal ArticleDOI
Spin Rate of Asteroid (54509) 2000 PH5 Increasing Due to the YORP Effect
Patrick A. Taylor,Jean-Luc Margot,David Vokrouhlicky,Daniel J. Scheeres,Petr Pravec,Stephen C. Lowry,Alan Fitzsimmons,Michael C. Nolan,Steven J. Ostro,Lance A. M. Benner,Jon D. Giorgini,Christopher Magri +11 more
TL;DR: The detection of asteroid spin-up supports the YORP effect as an explanation for the anomalous distribution of spin rates for asteroids under 10 kilometers in diameter and as a binary formation mechanism.
Related Papers (5)
The Rubble-Pile Asteroid Itokawa as Observed by Hayabusa
Akira Fujiwara,Jun'ichiro Kawaguchi,D. K. Yeomans,Masanao Abe,Tadashi Mukai,Tatsuaki Okada,Jun Saito,Hajime Yano,Makoto Yoshikawa,Daniel J. Scheeres,Olivier S. Barnouin-Jha,A. F. Cheng,Hirohide Demura,R. W. Gaskell,Naru Hirata,H. Ikeda,T. Kominato,Hirdy Miyamoto,Akiko M. Nakamura,Ryosuke Nakamura,Sho Sasaki,K. Uesugi +21 more