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Related papers: Characterization of the near-Earth Asteroid 2002NY…

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Any near-Earth object (NEO) following an Earth-like orbit may eventually be captured by Earth's gravity during low-velocity encounters. This theoretical possibility was first attested during the fly-by of 1991 VG in 1991-1992 with the…

Earth and Planetary Astrophysics · Physics 2020-04-08 C. de la Fuente Marcos , R. de la Fuente Marcos

In the last decades Near-Earth Objects (NEOs) have become very important targets to study, since they can give us clues to the formation, evolution and composition of the Solar System. In addition, they may represent either a threat to…

Earth and Planetary Astrophysics · Physics 2014-09-24 S. Ieva , E. Dotto , D. Perna , M. A. Barucci , F. Bernardi , S. Fornasier , F. De Luise , E. Perozzi , A. Rossi , J. R. Brucato

Near-Earth objects (NEOs) are excellent laboratories for testing processes that affect airless bodies, as well as informing us about Solar System history. Though most NEOs are nominally anhydrous because they formed inside the Solar System…

Earth and Planetary Astrophysics · Physics 2026-02-03 Lauren McGraw , Cristina Thomas , Josh Emery , Andy Rivkin

At the end of its discovery apparition, the $\sim$60 m near-Earth object 2024 YR4 was associated with a non-zero probability of lunar impact during its 2032 December 22 close approach. While posing no threat to Earth, a lunar impact of this…

The mature Jovian planet $\varepsilon$ Eridani b orbits one of the closest sun-like stars at a moderate separation of 3.5 AU, presenting one of the best opportunities to image a true analog to a solar system planet. We perform a thorough…

Earth and Planetary Astrophysics · Physics 2025-10-10 William Thompson , Eric Nielsen , Jean-Baptiste Ruffio , Sarah Blunt , Christian Marois

(99942) Apophis is a potentially hazardous asteroid that will closely approach the Earth on April 13, 2029. Although the likelihood of an impact has been ruled out, this close encounter represents a unique opportunity for planetary science…

Earth and Planetary Astrophysics · Physics 2023-09-04 Andrea C. Morelli , Alessandra Mannocchi , Carmine Giordano , Fabio Ferrari , Francesco Topputo

In this paper we perform an assessment of the 2880 Earth impact risk for asteroid (29075) 1950 DA. To obtain reliable predictions we analyze the contribution of the observational dataset and the astrometric treatment, the numerical error in…

Earth and Planetary Astrophysics · Physics 2015-06-17 D. Farnocchia , S. R. Chesley

We report the direct detection of radiation pressure on the asteroid 2009 BD, one of the smallest multi-opposition near-Earth objects currently known, with H ~ 28.4. Under the purely gravitational model of NEODyS the object is currently…

Earth and Planetary Astrophysics · Physics 2011-12-21 Marco Micheli , David J. Tholen , Garrett T. Elliott

We present here the discovery of a new class of super-slow rotating asteroids (P>1000 hours) in data extracted from the Asteroid Terrestrial-impact Last Alert System (ATLAS) and Zwicky Transient Facility (ZTF) all-sky surveys. Of the 39…

Earth and Planetary Astrophysics · Physics 2021-07-21 N. Erasmus , D. Kramer , A. McNeill , D. E. Trilling , P. Janse van Rensburg , G. T. van Belle , J. L. Tonry , L. Denneau , A. Heinze , H. J. Weiland

The near-Earth asteroid (99942) Apophis is a potentially hazardous asteroid. We obtained far-infrared observations of this asteroid with the Herschel Space Observatory's PACS instrument at 70, 100, and 160 micron. These were taken at two…

Earth and Planetary Astrophysics · Physics 2014-06-04 T. G. Müller , C. Kiss , P. Scheirich , P. Pravec , L. O'Rourke , E. Vilenius , B. Altieri

Six asteroids including two NEAs, one of which is PHA, accessible for observation in September 2012 were investigated using a low-resolution spectrophotometry in the range 0.35-0.90 um with the aim to study features of their reflectance…

Earth and Planetary Astrophysics · Physics 2015-09-23 Vladimir V. Busarev , Sergey I. Barabanov , Vyacheslav S. Rusakov , Vasiliy B. Puzin , Valery V. Kravtsov

Low-inclination Near-Earth Asteroid (297274) 1996 SK, which is also classified as a Potentially Hazardous Asteroid, has a highly eccentric orbit. It was studied by multi-wavelength photometry within the framework of an NEA color survey at…

Earth and Planetary Astrophysics · Physics 2014-03-05 Chien-Hsien Lin , Wing-Huen Ip , Zhong-Yi Lin , Fumi Yoshida , Yu-Chi Cheng

We investigate various short-warning mitigation scenarios via fragmentation for a hypothetical impact of asteroid 2023 NT1, a Near-Earth Object (NEO) that was discovered on July 15, 2023, two days after its closest approach to Earth on July…

We report Markov chain Monte Carlo fits of the thermophysical model of Wright (2007) to the fluxes of 10 asteroids which have been observed by both WISE and NEOWISE. This model is especially useful when one has observations of an asteroid…

Earth and Planetary Astrophysics · Physics 2015-10-01 Seth C. Koren , Edward L. Wright , A. Mainzer

We present near-infrared spectroscopy of the sporadically active asteroid (6478) Gault collected on the 3 m NASA/Infrared Telescope Facility observatory in late 2019 March/early April. Long-exposure imaging with the 0.5 m NEEMO T05…

We present our astrometric observations of the small near-Earth object 2011~MD ($H \sim 28.0$), obtained after its very close fly-by to Earth in June 2011. Our set of observations extends the observational arc to $73$ days, and together…

Earth and Planetary Astrophysics · Physics 2014-10-06 Marco Micheli , David J. Tholen , Garrett T. Elliott

Recently, Near Earth Objects (NEOs) have been attracting great attention, and thousands of NEOs have been found to date. This paper examines the NEOs' orbital dynamics using the framework of an accurate solar system model and a…

Earth and Planetary Astrophysics · Physics 2011-08-25 Hexi Baoyin , Yang Chen , Junfeng Li

We report the discovery from K2 of a transiting terrestrial planet in an ultra-short-period orbit around an M3-dwarf. K2-137 b completes an orbit in only 4.3 hours, the second-shortest orbital period of any known planet, just 4 minutes…