Results 1 to 10 of about 1,315 (111)

Asteroid Photometric Phase Functions From Bayesian Lightcurve Inversion

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Photometry is an important tool for characterizing the physical properties of asteroids. An asteroid’s photometric lightcurve and phase curve refer to the variation of the asteroid’s disk-integrated brightness in time and in phase angle (the Sun-asteroid-
Antti Ilmari Penttila   +2 more
exaly   +3 more sources

The Formation of a Rubble Pile Asteroid: Insights from the Asteroid Ryugu

open access: yesUniverse, 2023
The Hayabusa2 mission returned primitive samples from the C-type asteroid Ryugu to Earth. The C-type asteroids hold clues to the origin of Earth’s water and the building blocks of life.
Tsutomu Ota   +8 more
doaj   +1 more source

RODZINY ASTEROID [PDF]

open access: yesPrzegląd Geofizyczny, 2021
Liczba asteroid o wyznaczonych orbitach przekracza obecnie 500 tysięcy. Wiele z nich jest ze sobą powiązanych genetycznie, gdyż stanowią one produkt uszkodzenia lub nawet rozbicia większej asteroidy w procesie zderzeniowym.
Jacek Leliwa-Kopystyński
doaj   +1 more source

Asteroids and andesites [PDF]

open access: yesNature, 2009
The production of terrestrial andesites in subduction zones is well established. Day et al. describe two examples of meteorites (GRA 06128 and GRA 06129) that they claim to represent "an entirely new mode of generation of andesite crust compositions" on asteroids; this suggestion has wide implications for the generation of andesitic planetary crusts in
Arculus, Richard   +3 more
openaire   +3 more sources

Asteroid hyalosis [PDF]

open access: yesVestnik oftal'mologii, 2019
The article analyzes existing information on clinical and experimental studies of vitreous changes in asteroid hyalosis, historical aspects of how this condition was studied over the past hundred years, its occurrence and pathogenesis. Results of various studies were used to evaluate current understanding of the forms and elemental composition of ...
S I, Kharlap   +3 more
openaire   +4 more sources

Feasibility Analysis of Autonomous Orbit Determination and Gravity-Field Recovery around Asteroids Using Inter-Satellite Range Data

open access: yesAerospace, 2023
Autonomous navigation and orbit determination are key problems of asteroid exploration missions. Inter-satellite range link is a type of measurement widely used in the orbit determination of Earth satellites, but not so widely used in missions around ...
Haohan Li, Xiyun Hou
doaj   +1 more source

The first complete mitochondrial genome of the Northern Pacific deep-sea goniasterid sea star Ceramaster japonicus (Sladen, 1889) determined using NGS-based shotgun sequencing

open access: yesMitochondrial DNA. Part B. Resources, 2021
The full mitogenome of an ethanol-preserved museum specimen of Ceramaster japonicus was determined using the NGS Illumina MiSeq platform. The specimen was collected from Tosa Bay, Japan, facing the Pacific Ocean (33.0781 N 134.0601 E), at 700 m depth in ...
Masaki Yamamoto   +6 more
doaj   +1 more source

Simulation of asteroid braking in the Earth atmosphere [PDF]

open access: yesКомпьютерные исследования и моделирование, 2013
This article is investigated phenomenon of asteroid braking in neighborhood Chelyabinsk. Simulation of trajectory and asteroid basic parameters is accomplished on the basis of not numerous fixed video film and measurements. Calculation of hypersonic flow
M. M. Golomazov
doaj   +1 more source

Optical Imaging Instruments and Main Science Results of Small Body Exploration: A Review

open access: yesIEEE Access, 2021
Compared with planets and their moons, small bodies retain the characteristics of their early formation. Therefore small bodies, especially Near Earth Asteroids (NEA), have become one of the most valuable targets in space exploration. This paper presents
Fanlu Wu, Yanchao Fan
doaj   +1 more source

Multisatellite Task Allocation and Orbit Planning for Asteroid Terminal Defence

open access: yesAerospace, 2022
Near-Earth asteroids are a great threat to the Earth, especially potential rendezvous and collision asteroids. To protect the Earth from an asteroid collision, it is necessary to investigate the asteroid defence problem.
Yuelong Luo   +4 more
doaj   +1 more source

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