245 citations · 799 across the 18 of their papers we have counts for
18 papers
Constraining the Limitations of NEATM-like Models: A Case Study with Near-Earth Asteroid (285263) 1998 QE2
Samuel A. Myers, Ellen S. Howell, Christopher Magri +4
Near-Earth Asteroids (NEAs) are a key testbed for investigations into planet formation, asteroid dynamics, and planetary defense initiatives. These studies rely on understanding NE…
Physical Characterization of 2015 JD1: A Possibly Inhomogeneous Near-Earth Asteroid
Andy J. López-Oquendo, David E. Trilling, Annika Gustafsson +7
The surfaces of airless bodies such as asteroids are exposed to many phenomena that can alter their physical properties. Bennu, the target of the OSIRIS-REx mission, has demonstrat…
Physical properties of near-Earth asteroid (2102) Tantalus from multi-wavelength observations
Agata Rożek, Stephen C. Lowry, Benjamin Rozitis +20
Between 2010 and 2017 we have collected new optical and radar observations of the potentially hazardous asteroid (2102)~Tantalus from the ESO NTT and Danish telescopes at the La Si…
Asteroid 16 Psyche: Shape, Features, and Global Map
Michael K. Shepard, Katherine de Kleer, Saverio Cambioni +9
We develop a shape model of asteroid 16 Psyche using observations acquired in a wide range of wavelengths: Arecibo S-band delay-Doppler imaging, Atacama Large Millimeter Array (ALM…
Astro2020 Activities and Projects White Paper: Arecibo Observatory in the Next Decade
D. Anish Roshi, L. D. Anderson, E. Araya +42
The white paper discusses Arecibo Observatory's plan for facility improvements and activities over the next decade. The facility improvements include: (a) improving the telescope s…
Arecibo Radar Observations of Near-Earth Asteroid (3200) Phaethon During the 2017 Apparition
Patrick A. Taylor, Edgard G. Rivera-Valentin, Lance A. M. Benner +8
We report Arecibo S-band (2380 MHz; 12.6 cm) radar observations of near-Earth asteroid (3200) Phaethon during the December 2017 apparition when Phaethon passed within 0.07 au of Ea…
Yarkovsky Drift Detections for 247 Near-Earth Asteroids
Adam H. Greenberg, Jean-Luc Margot, Ashok K. Verma +2
The Yarkovsky effect is a thermal process acting upon the orbits of small celestial bodies, which can cause these orbits to slowly expand or contract with time. The effect is subtl…
Asteroid 1566 Icarus's size, shape, orbit, and Yarkovsky drift from radar observations
Adam H. Greenberg, Jean-Luc Margot, Ashok K. Verma +4
Near-Earth asteroid (NEA) 1566 Icarus ( au, , ) made a close approach to Earth in June 2015 at 22 lunar distances (LD). Its detection during the 196…
Physical Characterization of ~2-meter Diameter Near-Earth Asteroid 2015 TC25: A possible boulder from E-type Asteroid (44) Nysa
Vishnu Reddy, Juan A. Sanchez, William F. Bottke +11
Small near-Earth asteroids (>20 meters) are interesting because they are progenitors for meteorites in our terrestrial collection. Crucial to our understanding of the effectiveness…
Thermal Properties and an Improved Shape Model for Near-Earth Asteroid (162421) 2000 ET70
Sean E. Marshall, Ellen S. Howell, Christopher Magri +8
We present thermal properties and an improved shape model for potentially hazardous asteroid (162421) 2000 ET70. In addition to the radar data from 2000 ET70's apparition in 2012,…
Capabilities of Earth-based radar facilities for near-Earth asteroid observations
Shantanu. P. Naidu, Lance. A. M. Benner, Jean-Luc Margot +2
We evaluated the planetary radar capabilities at Arecibo, the Goldstone 70-m DSS-14 and 34-m DSS-13 antennas, the 70-m DSS-43 antenna at Canberra, the Green Bank Telescope, and the…
Orbit and Bulk Density of the OSIRIS-REx Target Asteroid (101955) Bennu
Steven R. Chesley, Davide Farnocchia, Michael C. Nolan +13
The target asteroid of the OSIRIS-REx asteroid sample return mission, (101955) Bennu (formerly 1999 RQ), is a half-kilometer near-Earth asteroid with an extraordinarily well…
Tidal End States of Binary Asteroid Systems with a Nonspherical Component
Patrick A. Taylor, Jean-Luc Margot
We derive the locations of the fully synchronous end states of tidal evolution for binary asteroid systems having one spherical component and one oblate- or prolate-spheroid compon…
Radar Imaging and Physical Characterization of Near-Earth Asteroid (162421) 2000 ET70
Shantanu P. Naidu, Jean-Luc Margot, Michael W. Busch +6
We observed near-Earth asteroid (162421) 2000 ET70 using the Arecibo and Goldstone radar systems over a period of 12 days during its close approach to the Earth in February 2012. W…
Radar Observations and the Shape of Near-Earth Asteroid 2008 EV5
Michael W. Busch, Steven J. Ostro, Lance A. M. Benner +10
We observed the near-Earth asteroid 2008 EV5 with the Arecibo and Goldstone planetary radars and the Very Long Baseline Array during December 2008. EV5 rotates retrograde and its o…
Tidal Evolution of Close Binary Asteroid Systems
Patrick A. Taylor, Jean-Luc Margot
We provide a generalized discussion of tidal evolution to arbitrary order in the expansion of the gravitational potential between two spherical bodies of any mass ratio. To accurat…
Binary Asteroid Systems: Tidal End States and Estimates of Material Properties
Patrick A. Taylor, Jean-Luc Margot
The locations of the fully despun, double synchronous end states of tidal evolution are derived for spherical components. With the exception of nearly equal-mass binaries, binary a…
Orbits of Near-Earth Asteroid Triples 2001 SN263 and 1994 CC: Properties, Origin, and Evolution
Julia Fang, Jean-Luc Margot, Marina Brozovic +3
Three-body model fits to Arecibo and Goldstone radar data reveal the nature of two near-Earth asteroid triples. Triple-asteroid system 2001 SN263 is characterized by a primary of ~…