Results 11 to 20 of about 508,942 (290)
The Near-Earth Object Surveyor Mission
The Planetary Science Journal, 2023 The Near-Earth Object (NEO) Surveyor mission is a NASA Observatory designed to discover and characterize asteroids and comets. The mission’s primary objective is to find the majority of objects large enough to cause severe regional impact damage (>140 m ...
A. K. Mainzer +36 more
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Automated Streak Detection for High Velocity Objects: Test with YSTAR-NEOPAT Images [PDF]
Journal of Astronomy and Space Sciences, 2005 We developed an algorithm to efficiently detect streaks in survey images and made a performance test with YSTAR-NEOPAT images obtained by the 0.5m telescope stationed in South Africa. Fast moving objects whose apparent speeds exceed 10 arcsec/min are the
Dae-Won Chung +6 more
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Feed-Forward Neural Network Denoising Applied to Goldstone Solar System Radar Images
Remote Sensing, 2022 The study of Near-Earth Asteroids (NEA) is crucial for human safety. Small hazardous asteroids with small radar cross sections are not easy to detect, track, and characterize due to the small signal-to-noise ratio (SNR) of the radar echo. This manuscript
Nereida Rodriguez-Alvarez +4 more
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Asteroid Diameters and Albedos from NEOWISE Reactivation Mission Years 4 and 5 [PDF]
, 2020 The Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) spacecraft has been conducting a two-band thermal infrared survey to detect and characterize asteroids and comets since its reactivation in 2013 December.
Bauer, J. M. +8 more
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Geophysical Research Letters, 2023 Small meteoroids that enter Earth's atmosphere often go unnoticed because their detection and characterization rely on human observations, introducing observational biases in space and time.
Stephen P. Hicks +10 more
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Evaluation of a Laser Altimeter using the Pseudo-Random Noise Modulation Technique for Apophis Mission [PDF]
Journal of Astronomy and Space Sciences, 2021 Apophis is a near-Earth object with a diameter of approximately 340 m, which will come closer to the Earth than a geostationary orbit in 2029, offering a unique opportunity for characterizing the object during the upcoming encounter.
Hyung-Chul Lim +7 more
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From Discovery to Impact - Near Earth Asteroids
Geoinformatics FCE CTU, 2012 The Near-Earth Objects (NEOs) are the most important of the small bodies of the solar system, having the capability of close approaches to the Earth and the chance to collide with the Earth.
Miloš Tichý +3 more
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Mirror formation control in the vicinity of an asteroid [PDF]
, 2008 Two strategies are presented for the positioning and control of a spacecraft formation designed to focus sunlight onto a point on the surface of asteroid, thereby sublimating the material and ejecting debris creating thrust.
Battin R. H. +11 more
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ExploreNEOs. II. The Accuracy of the Warm Spitzer Near-Earth Object Survey [PDF]
, 2011 We report on results of observations of near-Earth objects (NEOs) performed with the NASA Spitzer Space Telescope as part of our ongoing (2009-2011) Warm Spitzer NEO survey ("ExploreNEOs"), the primary aim of which is to provide sizes and albedos of some
Bhattacharya, B. +16 more
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Validation of the Survey Simulator Tool for the NEO Surveyor Mission Using NEOWISE Data
The Planetary Science Journal, 2023 The Near-Earth Object Surveyor (NEO Surveyor) mission has a requirement to find two-thirds of the potentially hazardous asteroids larger than 140 m in size. In order to determine the mission’s expected progress toward this goal during design and testing,
Joseph R. Masiero +6 more
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