Results 11 to 20 of about 584,066 (367)
NEOMOD: A New Orbital Distribution Model for Near-Earth Objects [PDF]
The Astronomical Journal, 2023 Near-Earth Objects (NEOs) are a transient population of small bodies with orbits near or in the terrestrial planet region. They represent a mid-stage in the dynamical cycle of asteroids and comets, which starts with their removal from the respective ...
David Nesvorný +13 more
doaj +2 more sources
Radar observability of near-Earth objects using EISCAT 3D [PDF]
Annales Geophysicae, 2020 Radar observations can be used to obtain accurate orbital elements for near-Earth objects (NEOs) as a result of the very accurate range and range rate measureables.
D. Kastinen +5 more
doaj +2 more sources
Spitzer Albedos of Near-Earth Objects [PDF]
The Astronomical Journal, 2019 Abstract Thermal infrared observations are the most effective way to measure asteroid diameter and albedo for a large number of near-Earth objects (NEOs). Major surveys like NEOWISE, NEOSurvey, ExploreNEOs, and NEOLegacy find a small fraction of high albedo objects that do not have clear analogs in the current meteorite population. About
Annika Gustafsson +8 more
openaire +6 more sources
The Mission Accessible Near-Earth Objects Survey: Four years of photometry [PDF]
Astrophysical Journal Supplement Series, 2018 Over 4.5 years, the Mission Accessible Near-Earth Object Survey (MANOS) assembled 228 Near-Earth Object (NEO) lightcurves. We report rotational lightcurves for 82 NEOs, constraints on amplitudes and periods for 21 NEOs, lightcurves with no detected ...
Binzel, Richard P. +12 more
core +4 more sources
Debiased albedo distribution for Near Earth Objects [PDF]
Icarus, 2020 We extend the most recent orbital and absolute magnitude Near Earth Object (NEO) model (Granvik et al., 2018) to provide a statistical description of NEO geometric albedos. Our model is calibrated on NEOWISE albedo data for the NEO population and reproduces these data very well once a simple model for the NEOWISE observational biases is applied.
Morbidelli, A. +7 more
openaire +9 more sources
Photometric survey of 67 near-Earth objects [PDF]
Astronomy & Astrophysics, 2018 Context. The near-Earth object (NEO) population is a window into the original conditions of the protosolar nebula, and has the potential to provide a key pathway for the delivery of water and organics to the early Earth. In addition to delivering the crucial ingredients for life, NEOs can pose a serious hazard to humanity since they can impact the ...
Roberto Speziali +12 more
openaire +10 more sources
The Near-Earth Object Surveyor Mission
The Planetary Science Journal, 2023 Abstract 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 in effective spherical diameter) within its 5 yr baseline survey ...
Mainzer, A. K. +36 more
openaire +4 more sources
The Population of Tiny Near-Earth Objects Observed by NEOWISE [PDF]
, 2013 Only a very small fraction of the asteroid population at size scales comparable to the object that exploded over Chelyabinsk, Russia has been discovered to date, and physical properties are poorly characterized.
Bauer, J. +10 more
core +4 more sources
NEOWISE Observations of Near-Earth Objects: Preliminary Results [PDF]
, 2011 With the NEOWISE portion of the \emph{Wide-field Infrared Survey Explorer} (WISE) project, we have carried out a highly uniform survey of the near-Earth object (NEO) population at thermal infrared wavelengths ranging from 3 to 22 $\mu$m, allowing us to ...
A. Del Pino Molina +70 more
core +2 more sources