Results 91 to 100 of about 85,468 (250)
Weather Radar Detection and Analysis of Bolides in the Day or Night
Advances in Astronomy, Volume 2025, Issue 1, 2025.Weather radars have proven to be valuable tools for detection and analysis of meteorite falls, specifically identifying and analyzing falling meteorites which have survived the initial fireball. The NEXRAD system has been in operation since the late 1990s by the United States National Oceanic and Atmospheric Administration (NOAA).
Marc Fries +2 more
wiley +1 more source
Physical properties of asteroids
Вісник Астрономічної школи, 2000 The most significant data on the physical properties of main-belt and near-Earth asteroids obtained by photometric, polarimetric, spectroscopic and other techniques, including space missions «Galileo» and NEAR, are presented.
D. F. Lupishko
doaj +1 more source
The Discovery and Characterization of Earth-crossing Asteroid 2024 YR4
The Astrophysical Journal LettersWe describe observations and physical characteristics of Earth-crossing asteroid 2024 YR _4 , discovered on 2024 December 27 by the Asteroid Terrestrial-impact Last Alert System.
Bryce T. Bolin +11 more
doaj +1 more source
Spin states of X-complex asteroids in the inner main belt -- I. Investigating the Athor and Zita collisional families [PDF]
A&A 690, A215 (2024)The aim of our study is to characterise the spin states of the members of the Athor and Zita collisional families and test whether these members have a spin distribution consistent with a common origin from the break up of their respective family parent asteroids.
arxiv +1 more source
Infrared Fluxes and Lightcurves of Near-Earth Objects: The Full Spitzer Sample
The Astronomical JournalThe IRAC camera on the Spitzer Space Telescope observed 2175 near-Earth objects (NEOs) during its Warm Mission phase, primarily in three large surveys, and also in a small number of a dedicated projects.
Joseph L. Hora +4 more
doaj +1 more source
IEEE Access, 2019 An adaptive control law is proposed in this paper for body-fixed hovering over an asteroid with an unknown gravity field and an unknown rotation rate. The unknown parameters and irregular shape of an asteroid make the hovering problem challenging.
Bo Zhang, Yuanli Cai
doaj +1 more source
Dynamic Three-dimensional Simulation of Surface Charging on Rotating Asteroids [PDF]
arXivSurface charging phenomenon of asteroids, mainly resulting from solar wind plasma and solar radiation, has been studied extensively. However, the influence of asteroid's rotation on surface charging has yet to be fully understood. Here neural network is established to replace numerical integration, improving the efficiency of dynamic three-dimensional ...
arxiv
The Planetary Science JournalWith the increasing number of binary asteroid systems being discovered, ejecta studies must expand from solely investigating single-body systems to modeling more complex multiple-body systems. For example, the Double Asteroid Redirection Test provides an
Jennifer N. Larson +2 more
doaj +1 more source
Statistical evidence for fast and slow asteroid rotations using Bayesian methods [PDF]
, 2003 J. R. Donnison
openalex +1 more source
The Planetary Science JournalActive asteroid (6478) Gault underwent outbursts between late 2018 and early 2019 with tails morphologically similar to the ejecta from Dimorphous following the Double Asteroid Redirection Test impact.
Adam Battle +5 more
doaj +1 more source