Results 71 to 80 of about 164,857 (187)

Infrared Colors of Small Serendipitously Found Asteroids in the UKIRT Hemisphere Survey

open access: yesThe Astronomical Journal
The UKIRT Hemisphere Survey covers the northern sky in the infrared from 0° to 60° decl. Current data releases include both J and K bands, with H -band data forthcoming. Here, we present a novel pipeline to recover asteroids from this survey data.
Samantha G. Morrison   +5 more
doaj   +1 more source

Observational Data and Orbits of the Asteroids Discovered at the Baldone Observatory in 2008–2013

open access: yesOpen Astronomy, 2015
The paper presents statistics of the asteroids observed and discovered at the Baldone Observatory, Latvia, in 2008–2013 within the project for astrometric observations of the near-Earth objects (NEOs), the main belt asteroids and comets. CCD observations
Černis K., Wlodarczyk I., Eglitis I.
doaj   +1 more source

Compositional Diversity Among Primitive Asteroids [PDF]

open access: yes, 2018
Spectroscopic observations from the ultraviolet to the mid-infrared have revealed new and diagnostic differences among primitive asteroids. We review the spectral characteristics of these asteroids and their inferred compositional and physical properties.
arxiv   +1 more source

Pre‐Flight and In‐Flight Calibration and Performance of the Terminal Tracking Cameras (TTCams) on the NASA Lucy Mission

open access: yesEarth and Space Science, Volume 11, Issue 8, August 2024.
Abstract The Terminal Tracking Camera (TTCam) imaging system on the NASA Lucy Discovery mission consists of a pair of cameras that are being used mainly as a navigation and target acquisition system for the mission's asteroid encounters. However, a secondary science‐focused function of the TTCam system is to provide wide‐angle broadband images over a ...
Y. Zhao   +11 more
wiley   +1 more source

Observations and Quantitative Compositional Analysis of Ceres, Pallas, and Hygiea Using JWST/NIRSpec

open access: yesThe Planetary Science Journal
We present JWST Near Infrared Spectrograph (NIRSpec) measurements of the three largest low-albedo main-belt asteroids: (1) Ceres, (2) Pallas, and (10) Hygiea.
Andrew S. Rivkin   +8 more
doaj   +1 more source

Photometry and Models of Seven Main-Belt Asteroids

open access: yesUniverse
The China Near-Earth Object Survey Telescope (CNEOST) conducted four photometric surveys from 2015 to 2018 using image processing and aperture photometry techniques to obtain extensive light curve data on asteroids. The second-order Fourier series method
Jun Tian   +6 more
doaj   +1 more source

Dynamical erosion of the asteroid belt and implications for large impacts in the inner solar system [PDF]

open access: yes, 2009
The cumulative effects of weak resonant and secular perturbations by the major planets produce chaotic behavior of asteroids on long timescales. Dynamical chaos is the dominant loss mechanism for asteroids with diameters D > 10 km in the current asteroid belt.
arxiv   +1 more source

Modelling of asteroid formation in planetary vortex and calculation its orbital parameters

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2015
The theory of planetary vortex as the initial state of creation of the star systems is used to the study of conditions of formation of asteroids and calculation its orbital parameters.
L. V. Klychinska, V. I. Perekhrest
doaj   +1 more source

First Subaru Observations of Sub-km Main-Belt Asteroids [PDF]

open access: bronze, 2001
Fumi Yoshida   +8 more
openalex   +1 more source

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