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The number of known Near Earth Asteroids (NEAs) and Potentially Hazardous Asteroids (PHAs) has continued to grow in the last decade. Follow-up and recovery of newly discovered objects, as well as new astrometry at second or third…

Astrophysics · Physics 2007-05-23 Ovidiu Vaduvescu , Mirel Birlan

The precise astrometric observation of small near-Earth objects (NEOs) is an important observational research topic in the astrometric discipline, which greatly promotes multidisciplinary research, such as the origin and evolution of the…

Instrumentation and Methods for Astrophysics · Physics 2021-12-01 Yigong Zhang , Jiancheng Wang , Jie Su , Xiangming Cheng , Zhenjun Zhang

Large or even medium sized asteroids impacting the Earth can cause damage on a global scale. Existing and planned concepts for finding near-Earth objects (NEOs) with diameter of 140 m or larger would take ~15-20 years of observation to find…

Earth and Planetary Astrophysics · Physics 2018-11-14 Michael Shao , Hanying Zhou , Slava G. Turyshev , Chengxing Zhai , Navtej Saini , Russell Trahan

We present a new space mission concept that is capable of finding, detecting, and tracking 90% of near-Earth objects (NEO) with H magnitude of $\rm H\leq22$ (i.e., $\sim$140 m in size) that are potentially hazardous to the Earth. The new…

Instrumentation and Methods for Astrophysics · Physics 2017-07-24 Michael Shao , Slava G. Turyshev , Sara Spangelo , Thomas Werne , Chengxing Zhai

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…

Earth and Planetary Astrophysics · Physics 2017-06-30 Peter Vereš , Steven R. Chesley

Since the late 1950s, when the first artificial satellite was launched, the number of Resident Space Objects has steadily increased. It is estimated that around one million objects larger than one cm are currently orbiting the Earth, with…

Earth and Planetary Astrophysics · Physics 2024-07-30 Francisco Caldas , Cláudia Soares

In order to avoid collisions with space debris, the near Earth orbit must be continuously scanned by either ground- or spaced-based facilities. For the low Earth orbit, radar telescopes are the workhorse for this task, especially due to…

Instrumentation and Methods for Astrophysics · Physics 2015-01-26 Daniel Hampf , Paul Wagner , Wolfgang Riede

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…

ESA's Flyeye telescope is designed with a very large field of view (FoV) in order to scan the sky for unknown near-Earth Objects (NEOs). For typical exposure times of 40 s, the telescope is able to detect objects with a limiting magnitude…

Earth and Planetary Astrophysics · Physics 2019-03-21 Olga Ramirez Torralba , Rüdiger Jehn , Detlef Koschny , Michael Frühauf , Laura S. Jehn , Alexander Praus

The observation of small bodies in the Space Environment is an ongoing important task in astronomy. While nowadays new objects are mostly detected in larger sky surveys, several follow-up observations are usually needed for each object to…

The Einstein rings and proper motions of nearby stars tend to be large. Thus, every year some foreground stars within a few hundred parsecs of Earth induce gravitational lensing events in background stars. In some of these cases, the events…

Earth and Planetary Astrophysics · Physics 2015-06-04 Rosanne Di Stefano , James Matthews , Sebastien Lepine

It has been 20 years since planning began for the 1995 United Nations International Conference on Near-Earth Objects. The conference proceedings established the scientific basis for an international organizational framework to support…

History and Philosophy of Physics · Physics 2014-09-11 J. L. Remo , H. J. Haubold

Earth is constantly being bombarded with material from space. Most of the natural material end up being dust grains that litter the surface of Earth, but larger bodies are known to impact every few decades. The most recent large impact was…

Instrumentation and Methods for Astrophysics · Physics 2019-09-05 Ravi teja Nallapu , Jekan Thangavelautham

Asteroids and comets are of strategic importance for science in an effort to understand the formation, evolution and composition of the Solar System. Near-Earth Objects (NEOs) are of particular interest because of their accessibility from…

Dynamical Systems · Mathematics 2013-08-09 D. García Yárnoz , J. P. Sánchez , C. R. McInnes

We studied the Near-Earth Asteroid (NEA) candidates posted on the Minor Planet Center's Near-Earth Object Confirmation Page (NEOCP) between years 2013 and 2016. Out of more than 17,000 NEA candidates, while the majority became either new…

Earth and Planetary Astrophysics · Physics 2018-06-12 Peter Vereš , Matthew J. Payne , Matthew J. Holman , Davide Farnocchia , Gareth V. Williams , Sonia Keys , Ian Boardman

We present the preliminary results of an analysis of the sub-populations within the near-Earth asteroids, including the Atens, Apollos, Amors, and those that are considered potentially hazardous using data from the Wide-field Infrared…

Earth and Planetary Astrophysics · Physics 2015-06-05 A. Mainzer , T. Grav , J. Masiero , J. Bauer , R. S. McMillan , J. Giorgini , T. Spahr , R. M. Cutri , D. J. Tholen , R. Jedicke , R. Walker , E. Wright , C. R. Nugent

The ESO/MPG WFI and the INT WFC wide field archives comprising 330,000 images were mined to search for serendipitous encounters of known Near Earth Asteroids (NEAs) and Potentially Hazardous Asteroids (PHAs). A total of 152 asteroids (44…

Occultations, the covering up of one celestial body by another celestial body, have been used in astronomy for millennia to learn about the sun and moon. Since 2018, VERITAS has implemented a program to detect predicted asteroid…

Instrumentation and Methods for Astrophysics · Physics 2025-12-15 Joshua Bartkoske , Anne Duerr , Dave Kieda

Computer vision algorithms are powerful tools in astronomical image analyses, especially when automation of object detection and extraction is required. Modern object detection algorithms in astronomy are oriented towards detection of stars…

Instrumentation and Methods for Astrophysics · Physics 2017-08-16 Dino Bektešević , Dejan Vinković

Imminent impactors are natural bodies discovered in space before impacting the Earth. They provide a rare opportunity to characterize individual near-Earth objects (NEOs) in great detail as asteroids in space, meteors in Earth's atmosphere…

Earth and Planetary Astrophysics · Physics 2026-04-09 Ian Chow , Mario Jurić , R. Lynne Jones , Kathleen Kiker , Joachim Moeyens , Peter G. Brown , Aren N. Heinze , Jacob A. Kurlander
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