Results 21 to 30 of about 41,807 (281)

Irregular fixation – II. The orbits of irregular satellites

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT Irregular satellites (ISs) are believed to have been captured during the Solar system’s dynamical history and provide clues for the Solar system’s formation and evolution. ISs occupy a large fraction of the Hill sphere of their host planet and their orbits are highly perturbed by the Sun.
Evgeni Grishin
openaire   +4 more sources

A Sentinel-1 SAR imagery dataset for airstrips detection and segmentation in the Brazilian Amazon RainforestMendeley Data [PDF]

open access: yesData in Brief
The Brazilian Amazon Rainforest holds a large ecological and economic importance and is considered one of the most biodiverse regions on the planet. The region faces numerous challenges from illegal human activities that threaten its sustainability and ...
Leandro da Silva Gomes   +5 more
doaj   +2 more sources

States' Responsibility to Operate Small Satellites in International Space Law [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2021
Many of the space applications that previously required the use of large, complex and expensive satellites have now been made possible by very small satellites due to the development of technology. The applicable international laws and regulations, which
Hamid Kazemi
doaj   +1 more source

Informal settlements in Baghdad city [PDF]

open access: yesE3S Web of Conferences, 2021
The research deals with the issue of slums, urban sprawl on agriculture land and its impact on the city of Baghdad. This topic needs close attention because it has become a problem facing the city of Baghdad through recruiting agricultural lands and ...
Repeva Anastasia
doaj   +1 more source

Method of determining the coordinates of the radio signal source in satellite communication systems

open access: yesКосмические аппараты и технологии, 2023
Telecommunications have penetrated deeply into all spheres of human activity. Due to the use of digital technologies, it has become possible to transmit and receive information of various kinds in one stream (not separately).
R. S. Blumberg   +2 more
doaj   +1 more source

IRREGULAR SATELLITE CAPTURE BY EXCHANGE REACTIONS [PDF]

open access: yesThe Astronomical Journal, 2008
The study of the origin of irregular satellites remains important in planetary science because it provides constraints on the formation process of giant planets and probes the properties of a now-extinct planetesimal disk that existed at 5-30 AU early in solar system history.
David Vokrouhlický   +2 more
openaire   +1 more source

Irregular satellite capture during planetary resonance passage [PDF]

open access: yesIcarus, 2006
Abstract The passage of Jupiter and Saturn through mutual 1:2 mean-motion resonance has recently been put forward as explanation for their relatively high eccentricities [Tsiganis, K., Gomes, R., Morbidelli, A., Levison, H.F., 2005. Nature 435, 459–461] and the origin of Jupiter's Trojans [Morbidelli, A., Levison, H.F., Tsiganis, K., Gomes, R., 2005.
Matija Ćuk, Brett J. Gladman
openaire   +2 more sources

Large-Scale, Multiple Level-of-Detail Change Detection from Remote Sensing Imagery Using Deep Visual Feature Clustering

open access: yesRemote Sensing, 2021
In the era of big data, where massive amounts of remotely sensed imagery can be obtained from various satellites accompanied by the rapid change in the surface of the Earth, new techniques for large-scale change detection are necessary to facilitate ...
Rasha S. Gargees, Grant J. Scott
doaj   +1 more source

A Survey for Outer Satellites of Mars: Limits to Completeness [PDF]

open access: yes, 2004
We surveyed the Hill sphere of Mars for irregular satellites. Our search covered nearly the entire Hill Sphere, but scattered light from Mars excluded the inner few arcminutes where the satellites Phobos and Deimos reside. No new satellites were found to
Burns J. A.   +7 more
core   +1 more source

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