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We have performed a detailed survey simulation of the LSST performance with regards to near-Earth objects (NEOs) using the project's current baseline cadence. The survey shows that if the project is able to reliably generate linked sets of…

地球与行星天体物理 · 物理学 2016-06-08 Tommy Grav , Amy Mainzer , Tim Spahr

The Near Earth Object Surveyor mission has a requirement to find two-thirds of the potentially hazardous asteroids larger than 140 meters in size. In order to determine the mission's expected progress toward this goal during design and…

地球与行星天体物理 · 物理学 2023-10-20 Joseph R. Masiero , Dar W. Dahlen , Amy K. Mainzer , William F. Bottke , Jennifer C. Bragg , James. M. Bauer , Tommy Grav

The population of near-Earth asteroids (NEAs) shows a large variety of objects in terms of physical and dynamical properties. They are subject to planetary encounters and to strong solar wind and radiation effects. Their study is also…

We perform high fidelity simulations of a wide-field telescopic survey searching for Near-Earth Objects (NEO) larger than 140\,m, focusing on the observational and detection model, detection efficiency and accuracy. As a test survey we…

地球与行星天体物理 · 物理学 2017-06-30 Peter Vereš , Steven R. Chesley

We demonstrate the efficiency and effectiveness of using a satellite-based sensor with visual and infrared focal plane arrays to search for NEAs with orbits largely interior to the Earth's orbit. Such a space-based system could detect…

天体物理学 · 物理学 2009-10-31 E. F. Tedesco , K. Muinonen , S. D. Price

Accurate measurements of osculating orbital elements are essential in order to understand and model the complex dynamic behavior of Near Earth Asteroids (NEAs). ESA's Gaia mission promises to have great potential in this respect. In this…

地球与行星天体物理 · 物理学 2014-09-19 Siegfried Eggl , Hadrien Devillepoix

Near-Earth asteroids (NEAs) in the 1-100 meter size range are estimated to be $\sim$1,000 times more numerous than the $\sim$15,000 currently-catalogued NEAs, most of which are in the 0.5-10 kilometer size range. Impacts from 10-100 meter…

We determine the possible detection rate of asteroids with the Bering mission. In particular we examine the outcome of the Bering mission in relation to the populations of Near-Earth Asteroids and main belt asteroids. This is done by…

天体物理学 · 物理学 2007-05-23 Rene Michelsen , Henning Haack , Anja C. Andersen , John L. Joergensen

We propose a low-cost robotic optical survey aimed at $1-300$ m Near Earth Objects (NEO) based on four state-of-the-art telescopes having extremely wide field of view. The small Near-Earth Asteroids (NEA) represent a potential risk but also…

天体物理仪器与方法 · 物理学 2014-01-29 P. Vereš , J. Tóth , R. Jedicke , J. Tonry , L. Denneau , R. Wainscoat , L. Kornoš , J. Šilha

We present the results of the first-ever visible spectroscopic survey fully dedicated to the small (absolute magnitude H>20) near-Earth asteroid (NEA) population. Observations have been performed at the New Technology Telescope (NTT) of the…

Studies on Near Earth Asteroids (NEAs) throw light on discoveries, identification, orbit prediction and civil alert capabilities, including potential asteroid impact hazards. Due to various new observational programs, the discovery rate of…

地球与行星天体物理 · 物理学 2016-07-21 J. Rukmini , G. Raghavendra , S. A. Ahmed , D. Shanti Priya , Syeda Azeem Unnisa

The rotational properties of small near-Earth asteroids (NEAs) provide crucial insights into their internal structure and collisional history. However, systematic surveys targeting metre- to decametre-sized bodies are rare, thus leaving…

地球与行星天体物理 · 物理学 2026-02-24 Miguel R. Alarcon , Javier Licandro , Miquel Serra-Ricart

The known near-Earth object (NEO) population consists of over 32,000 objects, with a yearly discovery rate of over 3000 NEOs per year. An essential component of the next generation of NEO surveys is an understanding of the population of…

地球与行星天体物理 · 物理学 2023-11-01 Tommy Grav , Amy K. Mainzer , Joseph R. Masiero , Dar W. Dahlen , Tim Spahr , William F. Bottke , Frank J. Masci

We perform a search for dormant comets, asteroidal objects of cometary origin, in the near-Earth asteroid (NEA) population based on dynamical and physical considerations. Our study is based on albedos derived within the ExploreNEOs program…

地球与行星天体物理 · 物理学 2015-09-23 M. Mommert , A. W. Harris , M. Mueller , J. L. Hora , D. E. Trilling , W. F. Bottke , C. A. Thomas , M. Delbo , J. P. Emery , G. Fazio , H. A. Smith

We propose to use a modest fraction of the re-purposed Kepler mission time and apertures to greatly increase the quantity and quality of our knowledge of near-Earth asteroids (NEAs) rotation and shape. NEAs are important for understanding…

地球与行星天体物理 · 物理学 2013-09-11 Martin Elvis , José Luis Galache , Gareth V. Williams

We estimate the total population of near-Earth objects (NEOs) in the Solar System, using an extensive, `Solar System to pixels' fake-asteroid simulation to debias detections of real NEOs by the ATLAS survey. Down to absolute magnitudes…

Multiple terrestrial and space-based telescopes have been proposed for detecting and tracking near-Earth objects (NEOs). Detailed simulations of the search performance of these systems have used complex computer codes that are not widely…

地球与行星天体物理 · 物理学 2016-03-23 Nathan Myhrvold

The Near-Earth Object (NEO) Surveyor mission is a NASA observatory designed to discover and characterize near-Earth asteroids and comets. The mission's primary objective is to find the majority of objects large enough to cause severe…

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…

地球与行星天体物理 · 物理学 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

We present an automated and probabilistic method to make prediscovery detections of near-Earth asteroids (NEAs) in archival survey images, with the goal of reducing orbital uncertainty immediately after discovery. We refit Minor Planet…

地球与行星天体物理 · 物理学 2025-10-10 Sage Li , Alex Geringer-Sameth , Nathan Golovich
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