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Response to Risk of Near-Earth Asteroid Impact
Published 2022-12-01Subjects: “…near-Earth asteroid, impact hazards, impact risk response, monitoring and early warning, on-orbit disposal, international cooperation…”
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The NEO Surveyor Near-Earth Asteroid Known Object Model
Published 2023-01-01“…An essential component of the next generation of NEO surveys is an understanding of the population of known objects, including an accounting of the discovery rate per year as a function of size. Using a near-Earth asteroid (NEA) reference model developed for NASA’s NEO Surveyor (NEOS) mission and a model of the major current and historical ground-based surveys, an estimate of the current NEA survey completeness as a function of size and absolute magnitude has been determined (termed the Known Object Model; KOM). …”
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Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect
Published 2023-01-01“…The Yarkovsky effect causes the semimajor axis drift of near-Earth asteroids. The drift can be detected by a precise orbit determination process. …”
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Non-zero Yarkovsky acceleration for near-Earth asteroid (99942) Apophis
Published 2022-01-01“…The Yarkovsky acceleration acting on near-Earth asteroid (99942) Apophis is large enough to require consideration when evaluating the object’s course and future close passes of Earth, according to an analysis of astrometry data collected including the 2021 flyby.…”
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Mars encounters cause fresh surfaces on some near-Earth asteroids
Published 2016“…We present the orbital distributions of 64 Q-type near-Earth asteroids, and seek to determine the dominant mechanisms for refreshing their surfaces. …”
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MarcoPolo-R near earth asteroid sample return mission
Published 2017“…MarcoPolo-R is a sample return mission to a primitive Near-Earth Asteroid (NEA) proposed in collaboration with NASA. …”
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A common origin for dynamically associated near-Earth asteroid pairs
Published 2020“…Though pairs of dynamically associated asteroids in the Main Belt have been identified and studied for over a decade, very few pair systems have been identified in the near-Earth asteroid population. We present data and analysis that supports the existence of two genetically related pairs in near-Earth space. …”
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Tidal Disruption of Near-Earth Asteroids during Close Encounters with Terrestrial Planets
Published 2024-01-01“…Numerical modeling has long suggested that gravitationally bound (or so-called rubble-pile) near-Earth asteroids (NEAs) can be destroyed by tidal forces during close and slow encounters with terrestrial planets. …”
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Spectral and spin measurement of two small and fast-rotating near-Earth asteroids
Published 2014“…Their spectral characteristics are somewhat atypical among near-Earth asteroids: C-complex for 2012 KP24 and B-type for 2012 KT42, from which we interpret the albedos of both asteroids to be between 0.10 and 0.15 and maximum effective diameters of 20 ± 6 and 6 ± 1 m, respectively. …”
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PHYSICAL CHARACTERIZATION AND ORIGIN OF BINARY NEAR-EARTH ASTEROID (175706) 1996 FG
Published 2015“…The near-Earth asteroid (NEA) (175706) 1996 FG[subscript 3] is a particularly interesting spacecraft target: a binary asteroid with a low-Δv heliocentric orbit. …”
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Near-Earth Asteroid Capture via Using Lunar Flyby plus Earth Aerobraking
Published 2021-08-01“…Capturing Near-Earth Asteroids (NEAs) in the Earth-Moon system is a potential method of future space exploration and resource utilization. …”
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Surface Heterogeneity, Physical, and Shape Model of Near-Earth Asteroid (52768) 1998 OR2
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Near-infrared thermal emission from near-Earth asteroids: Aspect-dependent variability
Published 2021“…We present case studies of the low albedo, near-Earth asteroids (285263) 1998 QE2 and (175706) 1996 FG3. …”
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Precise Distance Measurement for a Near-Earth Asteroid by the Refined Rotational Reflex Velocity Method
Published 2023-01-01“…We refined this method and extend it further to the distance measurement of near-Earth asteroids (NEAs). In practice, we measure the distance of the potentially hazardous asteroid (99942) Apophis from the acquired CCD frames using the newly refined method. …”
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Error Analysis for Rotating-drift-scan Charge-coupled Device Observation of Near-Earth Asteroids
Published 2024-01-01“…The apparent velocities of near-Earth asteroids (NEAs) are usually high when they pass by Earth. …”
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Lunar ejecta origin of near-Earth asteroid Kamo’oalewa is compatible with rare orbital pathways
Published 2023-10-01“…Abstract Near-Earth asteroid, Kamo’oalewa (469219), is one of a small number of known quasi-satellites of Earth; it transitions between quasi-satellite and horseshoe orbital states on centennial timescales, maintaining this dynamics over megayears. …”
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Photometry and Polarimetry of 2010 XC15: Observational Confirmation of E-type Near-Earth Asteroid Pair
Published 2023-01-01“…Although numerous observational and theoretical studies have been carried out, the formation mechanism of asteroid pairs is still unclear, especially for near-Earth asteroid (NEA) pairs. We conducted a series of optical photometric and polarimetric observations of a small NEA 2010 XC _15 in 2022 December to investigate its surface properties. …”
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Novel 3U Stand-Alone CubeSat Architecture for Autonomous Near Earth Asteroid Fly-By
Published 2020-12-01Subjects: Get full text
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