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Showing 1 to 14 of 14 for “"Near-Earth Objects"”.
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Surface characteristics of near-earth objects
… to be the source of all meteorites found on Earth. Numerous spectroscopic studies have been performed to try and link certain types of meteorites with certain classes of asteroids in space. However, these spectroscopic studies of meteorites and asteroids have often shown a discrepancy between …
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Effects of Earth encounters on the physical properties of near-earth objects
The effects of Earth encounters on the physical properties of near-Earth objects (NEOs) have been shown to be significant factors in their evolution. Previous studies have examined the effects of these encounters on reflectance spectra based on observational measurements, and effects such as spin …
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Killer asteroids : feasibility of using the IRTF to track near-earth objects
… the tracking and cataloging of all such objects which could potentially impact Earth. Currently, no comprehensive catalog of Near Earth Objects (NEOs) exists which contains information on the physical properties of the objects. Spectroscopic observation of NEOs must be carried out in an …
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Rapid Orbit Refinement of Potential Near-Earth Objects and Recovery of Nearly Lost Asteroids
… researchers about potential discoveries of new Near-Earth Objects (NEOs) on their NEO Confirmation Page (NEOCP). Most of these are indeed previously unstudied objects, which must be studied very promptly while initial predictions of their motions are still accurate. My thesis project has focused …
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System design of the MeerKAT L - band 3D radar for monitoring near earth objects
… creating a constantly updated database of near Earth objects and bridging the data gap that is currently being filled by mathematical models. Based on literature and system requirements, quasi-monostatic, bistatic, multistatic, single input multiple output (SIMO) radar configurations were …
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Physical modeling and high-performance GPU computing for characterization, interception, and disruption of hazardous near-Earth objects
… public have been becoming more aware that the Earth lives in a shooting gallery of small objects. We classify all of these asteroids and comets, known or unknown, that cross Earth's orbit as near-Earth objects (NEOs). A look at our geologic history tells us that NEOs have collided with Earth in …
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Prevention sequence mechanisms (PSM) for Near Earth Objects (NEOs) based on a three parameter scheme based classification framework
… leave alone the possibility of collisions with Near Earth Objects (NEOs) like asteroids and comets. Currently, there is no early detection and emergency response system in place. This study will apply the CLIOS (Complex Large Interconnected Open Socio-technical) Process to design and construct …
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Comets in the near-Earth object population
Because the lifespan of near-Earth objects (NEOs) is shorter than the age of the solar system, these objects originated elsewhere and they must have a source of re-supply. We seek to determine what fraction of the NEO population consists of dormant or extinct comets. We identify comet candidates …
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Asteroid hazard mitigation: deflection models and mission analysis
Small celestial bodies such as Near Earth Objects (NEOs) have become a common subject of study because of their importance in uncovering the mysteries of the composition, formation and evolution of the solar system. Among all asteroids, NEOs have stepped into prominence because of two important …
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NEOimpactor: a tool for assessing Earth's vulnerability to the NEO impact hazard
The Earth’s surface bears the scars of 4.5 billion years of bombardment by asteroids,<br/>despite most having been erased by tectonic activity and erosion. Asteroids predominantly<br/>orbit the Sun in the asteroid belt between Mars and Jupiter, but a large number<br/>occupy orbits close to the …
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Observation and Modelling of Meter-Class Earth impacting Asteroids
Earth is constantly bombarded by solar system objects of a wide variety of sizes, from micron-sized meteoroid stream and sporadic meteor dust, to meter-sized and larger meteoroids observed as fireballs. Fireball event characteristics directly point to the properties and structure of the parent body …
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A Feasibility Study On The Implementation Of Satellite-To-Satellite Tracking Around A Small Near-Earth Object
<p>Near-earth objects (NEOs) are asteroids and comets that have a perihelion distance of less than 1.3 astronomical units (AU). There are currently more than 10,000 known NEOs. The majority of these objects are less than 1 km in diameter. Despite the number of NEOs, little is known about most of …
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Tracing meteorite source regions through asteroid spectroscopy
By virtue of their landing on Earth, meteorites reside in near-Earth object (NEO) orbits prior to their arrival. Thus the population of observable NEOs, in principle, give the best representation of meteorite source bodies. By linking meteorites to NEOs, and linking NOEs to their most likely …