L. A. M. Benner
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View article: Shape modelling contact binaries 2024 ON and 2000 RS11 with ground-based radar
Shape modelling contact binaries 2024 ON and 2000 RS11 with ground-based radar Open
IntroductionBilobed objects (contact binaries) appear in both asteroid and comet populations with a bimodal mass distribution and bifurcated shape. They are common in both near-Earth asteroid populations, estimated from radar imaging to be…
View article: Shape and spin state model of contact binary (388188) 2006 DP14 using combined radar and optical observations
Shape and spin state model of contact binary (388188) 2006 DP14 using combined radar and optical observations Open
Contact binaries are found throughout the solar system. The recent discovery of Selam, the satellite of MBA (152830) Dinkinesh, by the NASA LUCY mission has made it clear that the term `contact binary' covers a variety of different types o…
View article: Hayabusa2# mission target 1998 KY26 preview: a small optically bright rapid rotator
Hayabusa2# mission target 1998 KY26 preview: a small optically bright rapid rotator Open
Understanding the physical characteristics of small bodies in the Solar System is crucial for refining models of their formation and evolution. Although several kilometre-sized asteroids have already been visited by spacecraft, 1998 KY26 w…
View article: Development of Radar and Optical Tracking of Near-Earth Asteroids at the University of Tasmania
Development of Radar and Optical Tracking of Near-Earth Asteroids at the University of Tasmania Open
We detail the use of the University of Tasmania’s (UTAS) optical and radio telescopes to conduct observations of near-Earth asteroids from 2021 to 2024. The Canberra Deep Space Communication Complex transmitted a radio signal at 7159.45 MH…
View article: 2023 DZ2 Planetary Defense Campaign
2023 DZ2 Planetary Defense Campaign Open
We present the results of a fourth planetary defense exercise, focused this time on the small near-Earth asteroid (NEA) 2023 DZ2 and conducted during its close approach to the Earth in 2023 March. The International Asteroid Warning Network…
View article: Radar and Optical Observations and Physical Modeling of Binary Near-Earth Asteroid 2018 EB
Radar and Optical Observations and Physical Modeling of Binary Near-Earth Asteroid 2018 EB Open
We report radar, photometric, and visible-wavelength spectrophotometry observations of NEA 2018 EB obtained in 2018. The radar campaign started at Goldstone (8560 MHz, 3.5 cm) on April 7, and it was followed by more extensive observations …
View article: Orbital and Physical Characterization of Asteroid Dimorphos Following the DART Impact
Orbital and Physical Characterization of Asteroid Dimorphos Following the DART Impact Open
The Double Asteroid Redirection Test (DART) mission impacted Dimorphos, the satellite of binary near-Earth asteroid (65803) Didymos, on 2022 September 26 UTC. We estimate the changes in the orbital and physical properties of the system due…
View article: Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations
Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations Open
We present a physical model and spin-state analysis of the potentially hazardous asteroid (23187) 2000 PN9. As part of a long-term campaign to make direct detections of the YORP effect, we collected optical lightcurves of the asteroid betw…
View article: Apophis Planetary Defense Campaign
Apophis Planetary Defense Campaign Open
We describe results of a planetary defense exercise conducted during the close approach to Earth by the near-Earth asteroid (99942) Apophis during 2020 December–2021 March. The planetary defense community has been conducting observational …
View article: Libration-induced Orbit Period Variations Following the DART Impact
Libration-induced Orbit Period Variations Following the DART Impact Open
The Double Asteroid Redirection Test (DART) mission will be the first test of a kinetic impactor as a means of planetary defense. In late 2022, DART will collide with Dimorphos, the secondary in the Didymos binary asteroid system. The impa…
View article: Libration-induced Orbit Period Variations Following the DART Impact
Libration-induced Orbit Period Variations Following the DART Impact Open
The Double Asteroid Redirection Test (DART) mission will be the first test of a kinetic impactor as a means of planetary defense. In late 2022, DART will collide with Dimorphos, the secondary in the Didymos binary asteroid system. The impa…
View article: The Future of Planetary Defense in the Era of Advanced Surveys
The Future of Planetary Defense in the Era of Advanced Surveys Open
International audience
View article: Janus: A NASA SIMPLEx mission to explore two NEO Binary Asteroids
Janus: A NASA SIMPLEx mission to explore two NEO Binary Asteroids Open
Janus is a NASA SIMPLEx mission currently in Phase B. The SIMPLEx program is designed around the idea of using secondary launch opportunities to explore interplanetary destinations. The Janus mission concept plans to take advantage of the …